지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 104 - 112 (9page)
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초록· 키워드
오류제보하기
Generally, numerical approaches of evaluation for vehicle seat comfort have been studied without considering time-dependent characteristics and the only seating moment have been considered in seat design. However, the comfort not only at the seating moment but also in the long-term should be evaluated because the passengers are sitting repeatedly on the seat to drive the vehicle for hours. So, the aim of this paper is to carry out a quantitative evaluation of the time-dependent mechanical characteristics of seat foams and to suggest a process for predicting the viscoelastic deformation of seat foam in response to long-term driving. To characterize the seat materials, uniaxial compression and tension tests were carried out for the seat foam and stress relaxation tests were performed for evaluating the viscoelastic behavior of the seat foam. A unit solid element model was used to verify the reliability of the material model with respect to the compression behavior of the seat foam. It is not straightforward to evaluate the time-dependent compression of foams using the explicit solver because the viscoelastic material model is limited. To use the explicit solver, the material model must be modified using stress-degradation data. Normalized stress relaxation moduli were added to the stress-strain curves obtained under static conditions to achieve a time-dependent set of stress-strain relations that were compatible with the implicit solver. There was good agreement between the analysis results and experimental data.
목차
Abstract
1. 서론
2. 시트 폼 재료의 특성 및 재료모델
3. 재료시험
4. 시간에 따른 폼 패드의 거동 예측
5. 결론
References
참고문헌 (21)
참고문헌 신청
1. [학술지(정기간행물)] - J. L. van Niekerk / 2003 / The Use of Seat Effective Amplitude Transmissibility(SEAT)Values to Predict Dynamic Seat Comfort / Journal of Sound and Vibration 260 (5) : 867 ~ 888
2. [학술지(정기간행물)] - M. M. Verver / 2005 / Aspects of Seat Modeling for Seating Comfort Analysis / Applied Ergonomics 36 (1) : 33 ~ 42
3. [학술지(정기간행물)] - A. van der Westhuizen / 2006 / Verification of Seat Effective Amplitude Transmissibility(SEAT)Value as a Reliable Metric to Predict Dynamic Seat Comfort / Journal of Sound and Vibration 295 (3-5) : 1060 ~ 1075
4. [학술지(정기간행물)] - R. K. Ippili / 2008 / Nonlinear Multi-body Dynamic Modeling of Seat-occupant System with Polyurethane Seat and H-point Prediction / International Journal of Industrial Ergonomics 38 (5-6) : 368 ~ 383
5. [학술지(정기간행물)] - A. Siefert / 2008 / Virtual Optimisation of Car Passenger Seats : Simulation of Static and Dynamic Effects on Drivers’Seating Comfort / International Journal of Industrial Ergonomics 38 (5-6) : 410 ~ 424
2. [학술지(정기간행물)] - M. M. Verver / 2005 / Aspects of Seat Modeling for Seating Comfort Analysis / Applied Ergonomics 36 (1) : 33 ~ 42
3. [학술지(정기간행물)] - A. van der Westhuizen / 2006 / Verification of Seat Effective Amplitude Transmissibility(SEAT)Value as a Reliable Metric to Predict Dynamic Seat Comfort / Journal of Sound and Vibration 295 (3-5) : 1060 ~ 1075
4. [학술지(정기간행물)] - R. K. Ippili / 2008 / Nonlinear Multi-body Dynamic Modeling of Seat-occupant System with Polyurethane Seat and H-point Prediction / International Journal of Industrial Ergonomics 38 (5-6) : 368 ~ 383
5. [학술지(정기간행물)] - A. Siefert / 2008 / Virtual Optimisation of Car Passenger Seats : Simulation of Static and Dynamic Effects on Drivers’Seating Comfort / International Journal of Industrial Ergonomics 38 (5-6) : 410 ~ 424
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UCI(KEPA) : I410-ECN-0101-2015-550-002417516