Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Comparison of Acceleration of Vibration Isolator and Accelerometer Attached Vibration Isolator Using Numerical Analysis

수치 해석을 이용하여 제진대와 제진대에 부착된 가속도계의 가속도 비교

  • Shin, Dong Ho (Mechanical Engineering, Kyonggi University) ;
  • Lee, Jung Woo (Mechanical Engineering, Kyonggi University) ;
  • Oh, Jae-Eung (Department of Mechanical Engineering, Hanyang University) ;
  • Lee, Jung Youn (Dept. of Mechanical System Engineering at Kyonggi University)
  • Received : 2012.08.16
  • Accepted : 2012.12.26
  • Published : 2013.01.20
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Abstract

The process of producing high precision and light weight product is always exposed to impact load or shock. Because of this, isolator device is required. To measure the response of the isolator, accelerometer is practically used. However, the measured response of the accelerometer is different to the response of the isolator. To predict the response of the accelerometer and the isolator, 2-DOF damped system with an input shock is modeled using numerical analysis. 1-DOF damped system with a base excitation is also used to predict the response of the isolator. The mass ratio, damping ratio, and natural frequency ratio are then varied. The predicted responses from the two modeling approaches are compared and large errors are found.

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References

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