| Cold Startability of Methanol-Fueled Chevrolet S-10 Vehicles |
DEC 86 |
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| Authors:
A. F. Montemayer; B. B. Baber; E. C. Owens; SOUTHWEST RESEARCH INST SAN ANTONIO TX BELVOIR FUELS AND LUBRICANTS RESEARCH FACILITY
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 | In this program, four Chevrolet S-10 vehicles were tested for cold starting performance. The vehicles consisted of two gasoline-fueled control vehicles and two M85-fueled test vehicles. The M85 vehicles were converted to methanol use with the Bank of America conversion technology. Two engine geometries were tested. The 2.5-liter L-4 throttle body injected engine was used in one M85 and one control vehicle. The 2-8-liter V-6 carbureted engine was used in ... |
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| Engine-Transmission Angular-Contact Ball Thrust Bearing Endurance Tests |
NOV 1983 |
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| Authors:
B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| Six bearings were endurance tested in pairs in a machine utilizing back-to-back loading of the bearing pairs. Each pair of bearings were run using a predetermined speed and load test schedule for 1,000 hours or failure, whichever occurred first. A description of the test program and the results obtained are described. |
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| Lubricant Evaluations Obtained Using the AFAPL (Air Force Aero Propulsion Laboratory) Automated Engine Simulator |
JAN 1983 |
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| Authors:
B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| A description of an automated gas turbine engine simulator, designated the AFAPL engine simulator, and a discussion of the test results obtained from 31 tests using the simulator are presented. The No. 4-5 bearing compartment areas of a J57 turbine engine are used as the basic hardware for the simulator. The simulator is driven by a variable-speed drive system, throught the accessory drive gearbox, providing simulator mainshaft speeds up to ... |
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| Inclusions and Service Induced Cracks in a Mature Population of Gas Turbine Engine Bearings |
JUL 82 |
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| Authors:
J. R. Barton; F. N. Kusenberger; B. B. Baber
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| Comprehensive NDE data have been acquired on approximately 1000 main shaft ball bearings used in J57/TF33 gas turbine engines by processing through the Automated Bearing Inspection System, Mark I CIBLE. Bearing service hours ranged from zero (new) to approximately 13,000 hr; inclusions and service induced cracks were detected in a significant number of components. Endurance testing as well as metallurgical sectioning and scanning electron microscope investigations were used in correlation ... |
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| Development of the Automated AFAPL Engine Simulator Test for Lubricant Evaluation |
MAY 1981 |
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| Authors:
B. B. Baber; M. L. Valtierra; J. E. Eichelberger; SOUTHWEST RESEARCH INST SAN ANTONIO TX MOBILE ENERGY DIV
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| A description of an automated gas turbine engine simulator, designated the AFAPL engine simulator, and a discussion of the test results obtained using the simulator are presented. The No. 4-5 bearing compartment areas of a J57 turbine engine are used as the basic hardware for the simulator. The simulator is driven by a variable-speed drive system, through the accessory drive gearbox, providing simulator mainshaft speeds up to 10,000 rpm. Electrical ... |
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| INCLUSIONS AND SERVICE INDUCED CRACKS IN A MATURE POPULATION OF GAS TURBINE ENGINE BEARINGS |
81 |
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| Authors:
J. R. Barton; F. N. Kusenberger; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TEX INSTRUMENTATION RESEARCH DIV
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| comprehensive nde data have been acquired on approximately 1000 main shaft ball bearings used in j57/tf33 gas turbine engines by processing through the automated bearing inspection system, mark i cible. bearing service hours ranged from zero (new) to approximately 13,000 hrs.; inclusions and service induced cracks were detected in a significant number of components. endurance testing as well as metallurgical sectioning and scanning electron microscope investigations were used in correlation ... |
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| Rolling Fatigue Test Results on RAO-28-74 and RAO-29-74. |
JUN 1975 |
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| Authors:
B. B. Baber; P. M. Ku; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| Ten SwRI rolling fatigue testers, using a 4-ball test specimen configuration, were employed to evaluate the effect of four different film thickness ratios on the rolling fatigue life of AISI 52100 CEVM steel balls. Two synthetic lubricants (one MIL-L-7808 and one MIL-L-23699) were used in the program at two test temperature conditions, 150F and 300F, thereby providing four different film thickness ratios ranging from 0.0972 to 0.6489. The results show ... |
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| Development of a Rotating Cylinder Deposition Test. |
JUN 1975 |
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| Authors:
J. P. Cuellar; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| A rotating cylinder deposition test for the evaluation of aircraft turbine engine lubricants was investigated. The device was selected for study on the basis of its promise for achieving controlled or measurable lubricant films and oxidative exposure conditions. Evaluation tests with this configuration were performed with four coded lubricants. Performance criteria in these tests included deposit rating, viscosity and neutralization number change, and oxygen consumption. Test conditions selected for this ... |
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| Development of the AFAPL Engine Simulator Test for Lubricant Evaluation. |
JUN 1975 |
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| Authors:
B. B. Baber; J. C. Tyler; M. L. Valtierra; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| A description of a gas turbine engine simulator, designated the AFAPL engine simulator, and a discussion of the results obtained using the simulator are presented. The AFAPL engine simulator was designed to provide a flexible test facility with the capability of closely simulating the critical temperatures and oil flow variables experienced by the lubricant in the full-scale engine. The No. 4-5 bearing compartment areas of a J57 turbine engine are ... |
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| Hot-Wall Deposition Test Results on the Effect of Wear Metal. |
01 FEB 1974 |
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| Authors:
N. P. Cuellar; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| A continuing investigation of the deposition characteristics of synthetic ester-base lubricants, as typified by Military Specifications MIL-L-7808 and MIL-L-23699, led to the discovery of the presence of appreciable metal (iron) content in the deposits recovered from the conventional bearing depositon tests and full-scale engine tests. Accordingly, a special test method was utilized to study the effect of wear metal generation on deposit ratings. The concentration of iron in the test ... |
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| Studies on the Oxidation-Corrosion-Deposition and Thermal Stability Characteristics of MIL-L-7808-Type Lubricants. |
JUN 1972 |
78 pages |
| Authors:
J. P. Cuellar; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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 | The report describes test methods and procedures used in the study of the oxidation-corrosion-deposition (O-C-D) characteristics of aircraft turbine engine lubricants employing a glassware-type apparatus. Development and evaluation of a light meter device for quantitative measurement of glassware deposits are also discussed. An extensive experimental effort using eight MIL-L-7808-type lubricants is described. The study encompassed an investigation of the factors of time, temperature, moisture, and metal types in relation to ... |
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| Studies with Synthetic Lubricants in the Hot-Wall Deposition Rig. |
JUN 1972 |
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| Authors:
J. P. Cuellar; D. A. Montalvo; B. B. Baber; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| A detailed description is presented of the hot-wall deposition test method for evaluating deposit and degradation characteristics of aircraft turbine engine lubricants at various temperature severity levels. Deposition data are shown for twenty MIL-L-7808- and six MIL-L-23699-type lubricants studied at 350F sump temperature and a range of 510 to 570F heating fluid temperature. Concurrently with test development and lubricant evaluation, the hot-wall test was used in the interrelated studies of ... |
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| LUBRICATION RESEARCH FOR AERO PROPULSION SYSTEMS. |
OCT 1965 |
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| Authors:
E. L. Anderson; B. B. Baber; P. M. Ku; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| Investigations were conducted to determine the possible effect of selected aircraft gas turbine engine lubricants and various solvents on the removal of carbonaceous deposits which had accumulated during service on the No. 2 bearing rear support of the J-57 engine. Six MIL-L-7808 type and one MIL-L-23699 type lubricants and six solvents were included in this program. Under the test procedures used, the deposits on the bearing support specimens were found ... |
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| LUBRICATION RESEARCH AND TEST METHOD DEVELOPMENT FOR AEROSPACE PROPULSION SYSTEMS. |
AUG 1965 |
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| Authors:
B. B. Baber; W. R. Blackstone; P. M. Ku; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| This program was concerned with the further development of the ABMA impact tester and the investigation of different test methods used to determine the impact sensitivity of materials in contact with rocket propellants. It was found that the specimen cup material and design had a significant effect on plummet rebound height. The use of a modified anvil region assembly, including a steel specimen cup, significantly increased the reactivity of materials ... |
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| LUBRICATION RESEARCH AND TEST METHOD DEVELOPMENT FOR AEROSPACE PROPULSION SYSTEMS. |
MAY 1964 |
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| Authors:
B. B. Baber; W. R. Blackstone; R. A. Burton; P. M. Ku; J. A. Russell; SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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| The work performed under this program was concerned with applied research in the broad field of lubrication related to advanced primary and secondary aerospace propulsion systems. Two principal phases were investigated: impact sensitivity of materials in contact with rocket propellants,and lubrication, friction and wear mechanisms in the cryogenic temperature range. The results of the LOX-Lubricant Impact Sensitivity Cooperative Program No. 3 for the ABMA impact tester are summarized. Investigations of ... |
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