Original Article
  • Analysis of the Comfort of Flame-Retardant Silicone Foam for the Seat of an Anthrop-Sensitive Engineering-Based Mass Transportation

  • Byung-Chul Kim*,#, Hyeong-Sik Won*,#, SunHee Kim**† , Kyung Who Choi*†

  • *School of Mechanical Engineering, Sungkyunkwan University
    **Korea Railroad Research Institute

  • 인체감성공학 기반 수송기기 시트용 난연성 실리콘 폼의 안락감 분석

  • 김병철*,# · 원형식*,# · 김순희**† · 최경후*†

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this study, the performance of flame-retardant silicone foam was evaluated. Static characteristics were analyzed through uniaxial compression and simple shear experiments, and the material constant was derived using ANSYS. The static comfort evaluation index of silicone foam derived based on the experimental data was compared with that of polyurethane(PU) foam. The accuracy of the material constantly derived through finite element analysis was analyzed, and in this process, it was confirmed that the Ogden 2nd model was the most accurate and economical. The parameter was obtained through the optimization process, considering the viscoelastic characteristics of the specimen. The transmission rate characteristics in relation to external vibration frequency were analyzed using polyurethane foam. As a result, at frequencies between 2-5Hz, the transmission rate was close to 1, but at 18Hz, it was lower than 1. The behavior was similar to that of polyurethane foam.


본 연구에서는 난연성 실리콘 폼의 성능을 평가하였다. 단축압축 및 단순전단 실험을 통해 정적 특성을 분석하고, ANSYS를 이용하여 재료상수를 도출하였다. 실험 데이터를 바탕으로 도출한 실리콘 폼의 정적안락감 평가지수를 폴리우레탄 폼의 그것과 비교하였다. 유한요소해석을 통해 도출한 재료상수의 정확성을 분석하였고, 이 과정에서 Ogden 2차 모델이 가장 정확하고 경제적임을 확인하였다. 또한 시편의 점탄성 특성을 고려하여 최적화 과정을 통해 파라미터를 얻고, 전달률 실험을 통해 외부 진동 주파수에 따른 전달률 특징을 폴리우레탄 폼과 분석하였다. 그 결과, 2-5Hz에서는 1과 유사한 전달률이, 18Hz 이상에서는 1보다 낮은 전달률을 보였고, 폴리우레탄 폼과 유사한 결과를 보였다.


Keywords: 난연성(Flame retardant), Ogden 모델(Ogden model), 점탄성(Viscoelasticity), 고유진동수(Natural Frequency), 진동전달률(Transmissivity)

This Article

Correspondence to

  • SunHee Kim** , Kyung Who Choi*

  • *School of Mechanical Engineering, Sungkyunkwan University
    **Korea Railroad Research Institute

  • E-mail: sunheekim@krri.re.kr, kw.choi@skku.edu