| A Fire Out-of-Battery Tank Gun: Theory and Simulation |
MAY 2002 |
26 pages |
| Authors:
E. Kathe; R. Gast; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
 | As part of the Army After Next effort, TACOM-ARDEC's Benet Laboratories undertook a radical departure from current tank gun recoil to engineer a soft recoil tank gun. Such a leap in technology may be required to enable a lightweight future combat system to withstand the recoil imparted by a large fiber gun, especially during fire on the move. Although soft recoil is not new to smaller caliber guns and howitzers, ... |
|
| Internal Ballistics Analysis for the Raven Propulson System |
26 APR 2001 |
11 pages |
| Authors:
S. Dunn; J. French; D. Coats; E. Kathe; R. Dillon; S. Sopok; M. Witherell; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| The recently proposed light Future Combat System (FCS) vehicles require a highly lethal cannon with greatly reduced recoil momentum. A novel approach to this problem was proposed by Kathe, which utilizes a RArefaction waVE guN (RAVEN) propulsion system to significantly reduce the recoil momentum and barrel heating. To accurately assess the effectiveness of this approach, a Navier-Stokes flow solver was developed to calculate the internal ballistics of this unconventional hybrid ... |
|
| Comparison Between Simulated and Experimental Results for a Balanced- Breech M256 Cannon System |
SEP 2000 |
26 pages |
| Authors:
Stephen A. Wilkerson; David H. Lyon; Larry Rusch; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| Numerical simulations indicate that a mass-balanced system, with realistic tolerances and boundary conditions, would drastically reduce the motion of the gun tube during the projectile in-bore cycle. It was further postulated that such a system could significantly reduce projectile dispersion, as well as diminish the computer correction factors for different ammunition types. Several simple devices were designed and manufactured to achieve this desired effect on the actual recoil system. Then, ... |
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| Recoilless and Gas-Free Projectile Propulsion |
14 SEP 1999 |
|
| Authors:
Watthew J. Sanford; Larry E. Crabtree; Roger L. Ellis; James F. Cahill; DEPARTMENT OF THE NAVY WASHINGTON DC
|
 | A recoilless and gas free projectile propulsion device is provided. A hollow pressure vessel is sealed on a first end to an aft end of a projectile in a launch tube. The pressure vessel is further open on a second end. A propellant charge filled pressure chamber, defined in a forward portion of the pressure vessel, has holes venting to the pressure vessel aft thereof. A piston, scaled ... |
|
| Underwater Projectile Launcher |
29 JUN 1999 |
|
| Authors:
Jeffrey L. Cipolla; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Disclosed is an underwater gas generator projectile launcher which includes a tubular barrel having a forward muzzle end and an opposed rearward end. A projectile is positioned in this tubular barrel adjacent the forward end An expellable closure for the forward muzzle end of the barrel means is provided. A projectile propelling piston assembly is positioned in the tubular barrel and includes a shell axially movable in the tubular barrel. ... |
|
| Deposition of Nitride Coatings Using Plasma Surface Modification Technology |
DEC 1998 |
8 pages |
| Authors:
John Conrad; Kumar Sridharan; Shamim Malik; WISCONSIN UNIV-MADISON
|
| The goal of this project is to investigate the Plasma Source Ion Implantation (PSII) process as an environmentally clean surface modification technique for defense related applications. Through this grant, considerable progress has been made in the understanding of the science and technology of the PSII process. A co-axial geometry technique has been developed and patented to deposit coatings on the inside surface of hollow cylinders and may have applications in ... |
|
| Proof-Testing the Physics Applications Inc. 50-mm Laboratory Gun |
SEP 1998 |
67 pages |
| Authors:
Graham F. Silsby; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| Reported here is the effort to proof-test a newly acquired breech and assembly for the 5O-mm high-pressure powder gun for terminal ballistic testing in the U.S. Army Research Laboratory's (ARL) Range 309A (R309A). The performance of a custom-produced 0.012-inch web 7-perforation M30 propellant in routine use there was modeled by the ARL-developed one dimensional (1-D) interior ballistic code IBHVG2 to select a propelling charge mass (CM) that ... |
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| Actuated Recoil Absorbing Mounting System for use with an Underwater Gun |
31 MAR 1998 |
13 pages |
| Authors:
Ivan N. Kirschner; Gary R. Berlam; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| An actuated recoil absorbing mounting system is used to reduce recoil velocities and to absorb the recoil energy from an underwater projectile launcher, such as a high discharge energy underwater gun. The recoil absorbing mounting system includes a projectile launcher frame that supports the projectile launcher during firing. The projectile launcher frame is slideably supported by one or more launcher frame supports to allow movement substantially in a linear direction. ... |
|
| Feasibility of a 7,000-lb 155-mm Towed Howitzer |
SEP 96 |
63 pages |
| Authors:
Lawrence W. Burton; Christopher P. Hoppel; Robert P. Kaste; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| An investigation was undertaken to determine a sensible design weight for a lightweight howitzer. After choosing 7,000 lb (3,175 kg) as a design goal, a study was undertaken to ascertain the feasibility of such a system while attempting to maintain 155-mm range and lethality. Work done previously by the U.S. Army Research, Development, and Engineering Center (ARDEC) and the Materials Testing Laboratory (MTL) on reducing the weight of various howitzer ... |
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| Evaluation of Corrosiveness, Oxidation, and Wear Properties of Hydraulic and Recoil Fluids |
NOV 95 |
88 pages |
| Authors:
P. I. Lacey; D. W. Naegeli; B. R. Wright; SOUTHWEST RESEARCH INST SAN ANTONIO TX TARDEC FUELS AND LUBRICANTS RESEARCH F ACILITY
|
| This document outlines a laboratory study to define the interrelated parameters of degradation and wear of contacts lubricated with various hydraulic fluids, with particular reference to chlorotrifluoroethylene (CTFE). The results rank the likely wear, corrosiveness, and oxidation properties of CTFE in comparison to currently used silicone-, polyalphaolefin-, and mineral oil-based fluids. articular attention was given to the metallurgy of critical components specific to the gun recoil brake mechanism. In general, ... |
|
| Artillery (Self-Propelled and Towed) |
16 OCT 95 |
24 pages |
| Authors:
ABERDEEN TEST CENTER ABERDEEN PROVING GROUND MD
|
| This ITOP describes procedures for evaluating the performance of self propelled (SP) and towed artillery armament during development and production tests. Included are functional as well as firing tests. (MM) |
|
| Orthogonal Line Deployment Device. |
17 JUN 1994 |
|
| Authors:
Steven Soszynski; Jeffrey S. Kornblith; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A gas-propelled line deployment device is operable for orthogonally deploying two antenna lines to a distance of greater than one hundred feet. The device includes first, second and third tubes, closed at one end and open at one end, the first and second tubes being arranged perpendicular to each other and the third tube being arranged along the resulting vector of the axes of the perpendicular tubes. The first and ... |
|
| M256 Static Load Test |
AUG 93 |
83 pages |
| Authors:
Stephen Wilkerson; Virginia Fulton; Joe Thiravong; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| A series of static load experiments was conducted on the M256 gun system to determine if clearances existed between its various components and, if so, where. In particular, it was desired to ascertain whether the gun tube and recoil mechanism act as a single unit or if clearances that exist between their primary parts allow the gun tube to deflect as a rigid body inside of the recoil device. Of ... |
|
| Tank Cannon and Recoil Mechanism |
23 OCT 92 |
17 pages |
| Authors:
ARMY COMBAT SYSTEMS TEST ACTIVITY ABERDEEN PROVING GROUND MD
|
| This ITOP describes procedures for conducting tests to evaluate the performance of tank cannon and hydropneumatic recoil mechanisms. This ITOP does not cover production acceptance tests, cannon safety tests (See ITOP 3-2-829), or cannon accessories such as thermal shrouds, muzzle reference sensors, etc. |
|
| Firing Recoilless Weapons from Enclosures |
Oct-1991 |
14 pages |
| Authors:
G R Price; HUMAN ENGINEERING LAB ABERDEEN PROVING GROUND MD
|
| Recoilless weapons commonly release a great deal of energy rearward in the immediate vicinity of the crew. If such weapons are fired from within structures, there is concern that in addition to the acoustic hazard to the ear or other organs, there might be hazard associated with flying debris or even structural collapse. Two studies were conducted to evaluate such hazards by remotely firing a total of 24 rounds from ... |
|
| Industrial Power Spray Washer |
19 SEP 91 |
44 pages |
| Authors:
Thomas G. Gizicki; ROCK ISLAND ARSENAL IL SCIENCE AND ENGINEERING DIRECTORATE
|
| Recoil mechanisms have components in proximity which slide past each other at high velocities. Consequently, particulate contamination of the hydraulic oil in the recoil assembly is tested. The most common type of contaminants found on M178 recoil components are metal chips (ferrous and nonferrous), light oils, honing oils and abrasive material (honing stone materials). The method of cleaning M178 recoil components prior to final assembly has varied over the past ... |
|
| Densification of Weapon Castings |
MAR 90 |
38 pages |
| Authors:
Sandra O. Roy; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| The usage of hot isostatic pressing to effect closure of porosity is reviewed in this report. Evidence is presented showing that hot isostatic pressing is effective in eliminating internal porosity, thus resulting in a marked improvement in mechanical properties. Hot isostatic pressing, Densification, Muzzle brakes, Porosity, Guns, Recoil mechanisms. (jes) |
|
| A Large-Caliber, High-Velocity Yaw Inducer |
NOV 89 |
21 pages |
| Authors:
Richard A. Pennekamp; ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| A method of inducing large yaw values (> 10 degrees) for large- caliber (155 mm) high-velocity (> 800 m/s) projectiles that does not damage the recoil system has been researched. This report documents this work. Also included are the results from a limited number of test firings (12) using M549, M825, M864, and M107 projectiles. This report discusses how the yaw inducer functions and how its shape was determined. (aw) ... |
|
| Effects of Recoil on Rifle Marksmanship Simulator Performance |
FEB 89 |
24 pages |
| Authors:
Kenneth L. Evans; ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA
|
| This report determines if the accurate reproduction of a rifle's recoil is a necessary feature of a rifle marksmanship simulator, this research was conducted with 24 adult volunteers in a military research organization. Each research participant fired 12 shots at silhouette targets presented on the Multipurpose Arcade Combat Simulator (MACS), whose demilitarized M16A1 rifle was equipped with a five-stage solenoid recoil mechanism developed by Larson Lectronics, Inc. Six of these ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume G. Technical Data Package |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume F. Systems Engineering Analysis (QA, Test Plans) |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume E. Hydraulic Component Design by York |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D3. Part 1. Structural Analysis of System |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D2. Part 4. Structural Analysis of Cradle |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D2. Part 3. Structural Analysis of Cradle |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil systems, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D2. Part 2. Structural Analysis of Cradle |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D2. Part 1. Structural Analysis of Cradle |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D1. Part 2. Structural Analysis (Less Cradle and System) |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D1. Part 1. Structural Analysis (Less Cradle and System) |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume C. Part 1. Dynamic Analysis Report |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume B. Technical Presentations - Part 1 |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D3. Part 2. Structural Analysis of System |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume C. Part 2. Dynamic Analysis Report |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume A. Overview |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume B. Technical Presentations - Part 2 |
APR 87 |
|
| Authors:
Robert Rathe; Bart Anderson; FMC CORP MINNEAPOLIS MINN NORTHERN ORDNANCE DIV
|
| The LTHD (Lightweight Towed Howitzer Demonstrator) was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development (PH I) ... |
|
| Proceedings of the U.S. Army Symposium on Gun Dynamics (4th) Held at Riviera Beach, Florida on 7-9 May 1985. Volume 2 |
MAY 85 |
236 pages |
| Authors:
Thomas E. Simkins; J. Vasilakis; ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER WATERVLIET NY LARGE CALIBER WEAPON SYSTEMS LAB
|
| This represents a compilation of thirty-four technical papers concerning analyses, design, measurement, and automation of gun dynamics. The authors represent a cross-section of the scientific and technical community, including universities, industrial, and Government research laboratories. |
|
| Proceedings of the U.S. Army Symposium on Gun Dynamics (4th) Held at Riviera Beach, Florida on 7-9 May 1985. Volume 1 |
MAY 85 |
292 pages |
| Authors:
Thomas E. Simkins; J. Vasilakis; ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER WATERVLIET NY LARGE CALIBER WEAPON SYSTEMS LAB
|
| This represents a compilation of thirty-four technical papers concerning analyses, design, measurement, and automation of gun dynamics. The authors represent a cross-section of the scientific and technical community, including universities, industrial, and Government research laboratories. |
|
| Automated Identification, Sizing and Counting of Particulate Contamination Found in Hydraulic Recoil Systems |
AUG 84 |
|
| Authors:
W. D. McHenry; L. A. Post; ROCK ISLAND ARSENAL IL ENGINEERING DIRECTORATE
|
| Procedures for the automated identification, sizing, and counting of particulate contamination in hydraulic recoil systems have been developed. The automated system can provide meaningful, accurate data in various formats and a dedicated Automated Particle Analysis system has the potential to provide results quickly to meet production needs on an unattended operating basis. Additional keywords: Hydraulic fluids, Recoil mechanisms, Artillery, Hydraulic recoil mechanism; Scanning electron microscope; Secondary electrons; Backscattered electrons; Characteristic ... |
|
| Recoil Transducer Fixture. |
07 JUL 1983 |
|
| Authors:
Jay S. Lilley; Jerrold H. Arszman; DEPARTMENT OF THE ARMY WASHINGTON DC
|
| A recoil transducer fixture for determining force responses at high frequencies. An impact transducer is mounted in a rigid assembly and is preloaded for operating under compressive loads. The fixture includes a pair of spaced plates having the transducer mounted therebetween and loading bolts cooperating with the plates for preloading the transducer to a predetermined valve. (Author) |
|
| A Short-Barrelled 105-mm Howitzer for Interior Ballistic Studies |
JAN 1983 |
|
| Authors:
Carl R. Ruth; James W. Evans; ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| Knowledge of the resistance to projectile motion is a requirement for interior ballistic simulation models. The behavior of the projectile during the engraving process is of particular interest. This need has prompted the development of techniques designed to provide detailed measurements of projectile motion in this region. One such technique is described in this report. |
|
| Testing of Handguns |
DEC 1982 |
|
| Authors:
John M. Winter Jr.; Robert B. Pond Sr; MARVALAUD INC WESTMINSTER MD
|
| A particular Colt and Smith and Wesson revolver model was systematically selected as most representative of handguns in use in law enforcement in this country. A low-pressure and a high-pressure ('+P') commercial .38 Special ammunition was selected for firing tests. Fifty rounds of low-pressure ammunition was fired exclusively by both a Colt and a Smith and Wesson. Fifty rounds of high-pressure ammunition was fired exclusively by both a Colt and ... |
|
| Evaluation of Handguns and Lightweight Armor |
DEC 1982 |
52 pages |
| Authors:
John M. Winter Jr.; David A. Shifler; Bruce S. Tibbets; Robert B. Pond Sr; MARVALAUD INC WESTMINSTER MD
|
| This work serves largely as a supplement to that reported in Final Report, 'Testing of Handguns,' Contract No. DAAD05-76-C-0746, TAsk 4, July 22, 1977. Ten additional revolver models have been evaluated using the methods evolved in the previous work. In addition, some measurements were made on the ability of some steel and aluminum plates to withstand .38 Special '+P' and .357 Magnum revolver rounds at various angles of incidence. ... |
|
| Thermal Warning Device Program 155mm M185 Howitzer M109A1/A2/A3 |
NOV 1982 |
|
| Authors:
John E. Brower; ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND WATERVLIET NY LARGE CALIBER WEAPON SYSTEMS LAB
|
| A Product Improvement Program was undertaken to provide a thermal warning device to measure the temperature of the M185 Howitzer tube forcing cone area from the tube outside diameter and provide a readout to the user at the breech end. This would warn the gun crew when a dangerous temperature level had been attained, as well as permit a higher rate of fire than current procedures allow. The plan was ... |
|
| The Shock and Vibration Bulletin: Proceedings on the Symposium on ShocK and Vibration (52nd) Held in New Orleans, Louisiana on 26-28 October 1981. Part 4. Fatigue and Random Loading Control, Isolation and Damping |
MAY 82 |
176 pages |
| Authors:
NAVAL RESEARCH LAB WASHINGTON DC SHOCK AND VIBRATION INFORMATION CENTER
|
| Contents: Fatigue life prediction for various random stress peak distributions; Fatigue life evaluation, stochastic loading and modified life curves; Effects of endurance limit and crest factor on time to failure under random loading; Single point random modal test technology application to failure detection; Forced vibrations of a large damped mechanical system; Indirect Fourier transform and shock response - - Basic theory; Active vibration control of large flexible structures; Force optimized ... |
|
| Weapon Chamber Pressure Measurements |
21 JAN 1982 |
23 pages |
| Authors:
ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD
|
| This document describes instrumentation and procedures for measuring pressure within weapon chambers during firing tests. (Author) |
|
| Secondary Combustion in Gun Exhaust Flows |
OCT 1981 |
37 pages |
| Authors:
Edward M. Schmidt; ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| The muzzle flash from cannon is analyzed using a simple description of the gun exhaust plume flow structure coupled to an empirical ignition criteria. The effect of muzzle devices such as recoil brakes is estimated through an approximate description of their internal flow. The influence of the transient nature of the weapon exhaust plume is examined by using a one- dimensional, unsteady numerical model to develop the flow properties along ... |
|
| Compressible Fluids Investigation |
OCT 1981 |
|
| Authors:
C. Gustavson; Robert Dombroski; TRW INC REDONDO BEACH CA
|
| This report describes an investigation of compressible fluids for use in artillery recoil mechanisms. An examination of chemical theory revealed the ideal properties which a compressible fluid should possess. More than 20 sample fluids were evaluated in a series of hydrostatic and miscibility tests. Results indicate that perfluorinated compounds exhibit better qualities for artillery applications than the silicone oil currently in use. |
|
| Buffered Bolt Assembly. |
31 JUL 1981 |
|
| Authors:
Clifford E. LaFever; DEPARTMENT OF THE ARMY WASHINGTON DC
|
| A buffered bolt assembly is disclosed for use in an automatic weapon. A bolt is received in a sleeve on a bolt carrier and is movable therein both axially and rotationally. One or more cam pins on the bolt are received in respective cam guides in the sleeve to control the bolt's rotational position as a function of its axial position. The aft end of the bolt is provided with ... |
|
| High Impulse Gun Airborne Demonstration. GAU-13/A Weapon, Feed System, Gun Drive and Electronic Controls |
MAY 1981 |
|
| Authors:
Edwin J. DePasqual; GENERAL ELECTRIC CO BURLINGTON VT ARMAMENT AND ELECTRICAL SYSTEMS DEPT
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| The HIGAD test bed described in this report consists of a four barrel, GAU-8/A class, 30-mm Gatling type weapon with associated feeder and dual rate drive, and a microprocessor-controlled, hydraulically-operated recoil attenuation system. This recoil system is referred to as FORC(Force Optimized Recoil Control) and is used for the 360 shot-per-minute (spm) rate. A second recoil system is used for the higher rate of 720 spm. This system is a ... |
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| Cartridge Ejector. |
21 APR 1981 |
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| Authors:
William R. Bains; DEPARTMENT OF THE ARMY WASHINGTON DC
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| This invention relates to a cartridge ejector for a recoil-operated gun. In prior art guns of the recoil-operated type if the gun fails to fire the lack of recoil force prevents the gun from continuing to fire. To allieviate this situation a manually-controlled charging mechanism is operated to draw the bolt carrier back to the full recoil position. Under the present invention the charging mechanism is augmented by a spring-urged ... |
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Reports by Keyword(s)
RECOIL MECHANISMS
