• Title/Summary/Keyword: Accelerating pulley

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A Study on the Development of Test Rig for High Speed Frontal Crash and Test of Members ($\textrm{I}$) (고속충돌시험기 개발 및 부재의 충돌특성 실험에 관한 연구 (I))

  • 강신유;장인배;김헌영;정규진;박경환
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.6
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    • pp.119-126
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    • 2000
  • In this paper. a simple high-speed crash test rig for members of vehicle was developed for the improvement of crashworthiness of vehicle's side rail. The cart hanging the specimen is accelerated up to 35 mph by the force of freely dropping weight and 1:3 accelerating pulleys. The cart with shock absorbers travels on the rail roads, so it does not transfer any additional vibration to the specimen. To measure the test results, two types of accelerator are considered. the one is a strain gage type and the other is a piezo type. The test rig is rated good to test the specimen like a side rail of vehicle as developing the vehicle's structures in the early design stage.

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A Study on the Development of Test Rig for High Speed Frontal Crash and Test of Members

  • Shin-You. Kang;In-Bae. Chang;Jang, Hye-Jeong
    • International Journal of Precision Engineering and Manufacturing
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    • v.3 no.3
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    • pp.21-27
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    • 2002
  • In this paper, a simple test rig of high-speed crash for the front members of vehicles was developed for the improvement of crashworthiness of vehicle's side rail. The cart hanging the specimen is accelerated up to 35 mph by the traction wire and by the force of freely dropping weight and 1:3 accelerating pulleys. The cart with shock absorbers travels on the rail roads, so it does not transfer any additional vibration to the specimen. In order to measure the energy absorbed by the specimen when it collapse to the wall and during it deform, the two strain gage type load cells are used at the wall place. The test rig rated good to test the specimen like a side rail of vehicle as developing the vehicle's structures in the early design stage.