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Prediction of Impact Energy Absorption in a High Weight Drop Tester by Response Surface Methodology

반응표면법을 사용한 고 중량물 낙하시험기의 충격에너지 흡수량 예측 연구

Kang, Hoon;Jang, Jin-Seok;Kim, Da-Hye;Kang, Ji-Heon;Yoo, Wan-Seok;Lee, Jae-Wook
강훈;장진석;김다혜;강지헌;유완석;이재욱

  • Received : 2016.02.14
  • Accepted : 2016.03.29
  • Published : 2016.06.30

Abstract

This paper presents the characteristics of the energy absorption in an expansion tube type impact absorber that is applied to a high weight drop tester and the use of a response surface methodology to predict the impact energy absorption. In order to identify the characteristics of the energy absorption, a set of finite element analysis was conducted with Abaqus Explicit. Moreover, the ISCD-II sampling method and a first order polynomial were used to build a response surface. As a result, we demonstrated that the impact energy could be controlled by four main design variables, namely an expansion pipe's thickness, inner radius, pressing die's expansion angle and expansion ratio. Additionally, we observed the relationship between the four main design variables and the impact energy absorbing time, displacement, and maximum impact force.

Keywords

Response Surface Method;High Weight Drop Tester;Impact Energy;Expansion Tube Type Impact Absorber

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Acknowledgement

Grant : 산업계연계형

Supported by : 한국생산기술연구원