汽车工程 ›› 2023, Vol. 45 ›› Issue (5): 888-895.doi: 10.19562/j.chinasae.qcgc.2023.05.019

所属专题: 底盘&动力学&整车性能专题2023年

• • 上一篇    

汽车座椅发泡材料乘坐压力评估模型的构建

李兵1,上官文斌2,黄旭盛1,葛飞1(),李啟定1,朱新涛1   

  1. 1.广汽零部件有限公司,广州  511411
    2.华南理工大学机械与汽车工程学院,广州  510641
  • 收稿日期:2022-10-25 修回日期:2022-12-02 出版日期:2023-05-25 发布日期:2023-05-26
  • 通讯作者: 葛飞 E-mail:gefei@gac-component.com

Construction of An Assessment Model for the Pressure of Foam Materials of the Automobile Seat

Bing Li1,Wenbin Shangguan2,Xusheng Huang1,Fei Ge1(),Qiding Li1,Xintao Zhu1   

  1. 1.GAC Component Co. ,Ltd. ,Guangzhou  511411
    2.Shool of Science and Engineering,South China University,Guangzhou  510641
  • Received:2022-10-25 Revised:2022-12-02 Online:2023-05-25 Published:2023-05-26
  • Contact: Fei Ge E-mail:gefei@gac-component.com

摘要:

座椅发泡材料的特性是影响座椅舒适性的主要因素之一。本文利用拉压试验机对座椅发泡材料进行乘坐压力测量,设计乘坐压力与发泡密度、硬度和回弹率的单因素实验,实验分析了乘坐压力与物理参数的相关性和显著性。在40组实验数据的基础上,通过HyperStudy多学科优化软件,利用最小二乘回归法进行拟合得到了座椅发泡材料乘坐压力评估模型。利用此模型计算出乘坐压力的大小,从而在产品的设计阶段评估座椅舒适性的程度。

关键词: 座椅发泡, 乘坐压力评估模型, 发泡密度, 发泡硬度

Abstract:

The property of foam materials is one of the key factors affecting automobile seat comfort. In this paper, the tensile and compression testing machine is used to measure sitting pressure of the seat foam materials and three single factor experiments are designed, i.e. the sitting pressure vs. foam density, the sitting pressure vs. foam hardness and the sitting pressure vs. foam rebound rate to analyze the correlation and the signification between the sitting pressure and different physical parameters are. Based on the 40 sets of experimental data, the evaluation model of the sitting pressure for foam materials is obtained by applying the least square regression method in the multidisciplinary optimization software HyperStudy. With this model the sitting pressure can be calculated to assess the seat comfort in the product design stage.

Key words: seat foam, assessment model for sitting pressure, foam density, foam hardness