北京航空航天大学学报 ›› 2015, Vol. 41 ›› Issue (2): 241-245.doi: 10.13700/j.bh.1001-5965.2014.0122

• 论文 • 上一篇    下一篇

基于Ansys的飞行员座椅坐垫舒适性仿真

李先学1, 丁立1, 王兴伟2, 魏仕华3, 周前祥1, 呼慧敏4   

  1. 1. 北京航空航天大学 生物与医学工程学院, 北京 100191;
    2. 中国人民解放军 空军航空医学研究所, 北京 100036;
    3. 泰州职业技术学院 机电技术学院, 泰州 225300;
    4. 中国标准化研究院, 北京 100088
  • 收稿日期:2014-03-14 出版日期:2015-02-20 发布日期:2015-03-12
  • 通讯作者: 丁立(1971—), 男, 云南永善人, 副教授, ding1971316@buaa.edu.cn, 主要研究方向为人体传热及人机工效. E-mail:ding1971316@buaa.edu.cn
  • 作者简介:李先学(1988—), 男, 山东济南人, 博士生, li36101120@126.com
  • 基金资助:

    国家自然科学基金资助项目(51175021); 国家科技支撑计划资助项目(2014BAK01B05); 中国标准化研究院公益性科研院所基本科研业务费专项资金资助项目(282014Y-3353)

Comfort evaluation for aircraft seat cushion based on finite element model

LI Xianxue1, DING Li1, WANG Xingwei2, WEI Shihua3, ZHOU Qianxiang1, HU Huimin4   

  1. 1. School of Biological Science and Medical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. Institute of Aviation Medicine of Air Force, Chinese People's Liberation Army, Beijing 100036, China;
    3. School of Mechanical and Electrical Engineering, Taizhou Polytechnic College, Taizhou 225300, China;
    4. China National Institute of Standardization, Beijing 100088, China
  • Received:2014-03-14 Online:2015-02-20 Published:2015-03-12

摘要:

鉴于飞行员对飞机座椅的舒适性要求越来越高,针对人与座椅之间的应力分布这个座椅舒适性评价指标,建立了包括骨盆在内的人-座椅坐垫有限元模型,对坐姿下人与坐垫的应力分布进行了仿真计算.通过比较1g重力环境下仿真和实验坐垫上应力分布,验证模型的有效性,在此基础上开展了不同过载下的仿真计算.分析可知仿真模型在坐应力分布和应力值大小方面与实验数据具有较高的一致性;不同过载下体内以及坐垫上应力最大值与施加的过载加速度直接呈线性关系.结果表明,建立的人-座椅坐垫有限元模型是有效的,可以用于评估不同坐垫或不同过载环境下的舒适性.

关键词: 有限元, 座椅, 应力分布, 过载加速度, 工效学

Abstract:

The comfort of pilot's seat is highly demanded and the sitting pressure is a very important index to evaluate the seat comfort. A human-seat cushion finite element model including the pelvis was built to simulate the pressure distribution in the human-seat cushion interface and interior the human body, and finally to evaluate the comfort of the plane's seat. The simulation and experiment results were compared to verify the validity of the model, after that simulation under different overload accelerations was performed. By an analysis of the pressure distribution and maximum pressure, the simulation and experiment results are highly consistent and the maximum pressure is linearly dependent with the overload acceleration. The results show that the human-seat cushion model is validated and can be used to evaluate the comfort of different seat cushions under different overload accelerations.

Key words: finite element method, seats, pressure distribution, overload acceleration, ergonomics

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