WYLE SYSTEMS MODEL 5001 INSTRUMENTATION SYSTEM FOR ACCIDENT SIMULATION

AN INSTRUMENTATION SYSTEM IS DESCRIBED WHICH WAS DESIGNED AND FABRICATED BY WYLE SYSTEMS, EL SEGUNDO, CALIFORNIA, AND DELIVERED TO THE BUREAU OF PUBLIC ROADS UNDER CONTRACT FH- 11-6670. THE SUBJECT SYSTEM WAS DEVELOPED FOR THE MEASUREMENT OF DYNAMIC PHENOMENA ASSOCIATED WITH FULL-SCALE BARRIER CRASH TESTING OF PASSENGER VEHICLES. THE SYSTEM PROVIDES SEVEN MEASUREMENT CHANNELS IN THE TEST VEHICLE, AND INSTRUMENTATION FOR AN ADDITIONAL SEVEN CHANNELS ON THE BARRIER. VEHICLE MEASUREMENT DEVICES INCLUDE ACCELEROMETERS, TO BE MOUNTED ON THE VEHICLE STRUCTURE AND IN AN ANTHROPOMETRIC DUMMY, AND FORCE TRANSDUCERS FOR MEASUREMENT OF SHOULDER AND LAP BELT LOADS. FM-FM TELEMETRY TRANSMITTERS ARE MOUNTED IN THE TEST VEHICLE; RECEIVERS ARE LOCATED IN A PORTABLE DATA - CONDITIONING PACKAGE WHICH ALSO INCLUDES AN FM TAPE RECORDER, SIGNAL CONDITIONING MODULES, AND DC AMPLIFIERS. VIA THE TELEMETRY EQUIPMENT, SEVEN CHANNELS OF VEHICLE DATA ARE RECORDED ON TAPE. THE SEVEN SIGNAL CONDITIONING MODULES AND DC AMPLIFIERS ARE UTILIZED TO OBTAIN DATA FROM THE BARRIER DURING CRASH. THIS DATA IS ALSO RECORDED ON TAPE. THE SIGNAL CONDITIONING MODULES INCORPORATE PLUG-IN MODE CARDS THAT ARE DESIGNED TO MATCH VARIOUS TYPES OF STRAIN GAGE, POTENTIOMETRIC, AND TEMPERATURE SENSORS. THE BUREAU OF PUBLIC ROADS ORIGINALLY SPECIFIED THAT THE SUBJECT VEHICLE SYSTEM BE DESIGNED SO, THAT WHEN MOUNTED IN A 4500 POUND VEHICLE IMPACTING A FIXED OBJECT AT 60 MILES PER HOUR, THE SYSTEM WOULD NOT SUFFER DAMAGE. IT WAS DEMONSTRATED THAT THE INSTRUMENTATION SYSTEM WAS OPERABLE WITH NO DEGRADATION IN PERFORMANCE WHEN SUBJECTED TO A SHOCK LOAD OF 100 G (REPRESENTATIVE OF LEVELS EXPERIENCED IN THE TRUNK OF A VEHICLE IMPACTING A FIXED BARRIER AT 60 MILES PER HOUR). THE INSTRUMENTATION SYSTEM IS DESCRIBED IN DETAIL. SYSTEM PERFORMANCE TESTS CONDUCTED BY WYLE LABORATORIES AND BY THE CALIFORNIA DIVISION OF HIGHWAYS ARE ALSO DESCRIBED. THE PERFORMANCE TEST RESULTS ARE PRESENTED WITH PERTINENT COMMENTS. /AUTHOR/

• Corporate Authors:

  Wyle Laboratories

  128 Maryland Street
  El Segundo, CA  United States  90245

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Accelerometers; Anthropometry; Automobiles; Crash tests; Crashes; Dummies; Dynamic tests; Force; Loads; Manual safety belts; Measurement; Measuring instruments; Performance tests; Strain gages; Telemetry; Temperature sensors; Testing; Testing equipment; Transducers
• Subject Areas: Highways; Research; Safety and Human Factors;

Filing Info

• Accession Number: 00219728
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: Fh 11-6670
• Files: TRIS, USDOT
• Created Date: Apr 10 1971 12:00AM