欢迎访问《汽车安全与节能学报》，
汽车安全与节能学报

JASE ›› 2019, Vol. 10 ›› Issue (1): 60-66.DOI: 10.3969/j.issn.1674-8484.2019.01.007

• 汽车安全 • 上一篇    下一篇

基于Kriging 模型PA6-GF30 车门外把手壁膜的吸水性

杨 岩1，曹立雄2，李良军1，陆劲昆1，贾尚雨1，陈大兵1   

  1. （1. 东风汽车有限公司 东风日产乘用车公司技术中心，510800 广州，中国；2. 湖南大学 机械与运载工程学院，410082 长沙，中国)
  • 收稿日期:2018-07-16 出版日期:2019-03-31 发布日期:2019-04-01
  • 作者简介:第一作者 / First author ： 杨岩（1987—），男（汉），广州，工程师。E-mail: 121470900@qq.com。 第二作者 / Second author ： 曹立雄（1986—），男（汉族），甘肃，博士研究生。E-mail: clx_328@aliyun.com。
  • 基金资助:

    东风汽车有限公司东风日产乘用车公司某SUV 项目(X32S)。

Water absorption characteristics of PA6-GF30 door outside handle coating based on Kriging model

YANG Yan1, CAO Lixiong2, LI Liangjun1, LU Jinkun1, JIA Shangyu1, CHEN Dabing1   

  1. (1. Passenger Vehicle Technical Center, Dongfeng Motor Co., Ltd, .510800 Guangzhou, China; 2. College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, China)
  • Received:2018-07-16 Online:2019-03-31 Published:2019-04-01

PDF

519

摘要：

       该文研究了PA6-GF30 型号（30% 玻璃纤维的聚酰胺）材质的车门外把手壁膜的吸水特性。试验样品片厚度为3 mm。总结出湿度决定材料饱和吸水率、温度决定吸水速度、时间决定吸水程度的规律；利用Kriging 插值原理，建立了PA6-GF30 材料外把手吸水率数学模型，并用最小二乘法，建立了使用环境反求函数。试验和计算结果误差在5%以内。利用此模型，预测了不同使用环境下的 外把手壁膜吸水率及吸水条件；应用于外把手结构优化设计，消除外把手壁膜因吸水导致的作动不回 位等不良问题；并制定出新的吸湿性加速实验评价基准。该结果可为类似吸水性材料的汽车部品的研究和设计来提供参考。

关键词: 车门外把手 , 聚酰胺 , 材料选择 , 吸水性 , Kriging 插值

Abstract:

This paper investigated the water absorption characteristics of PA6-GF30 (30% polyamide of glass fibre) for the coating of a vehicle door outside handle, tested material samples with a thickness of 3 mm. Summarized the material regularities about how humidity determines saturated water absorption rate, how
temperature determines water absorption speed, and how time determines water absorption level. A water absorption mathematical model of PA6-GF30 door outside handle coating was established by using Kriging interpolation method. And an inverse function of service environment was established with a least square method. The precisions were within 5% for tests and calculations. The model was used to predict the water absorption rate and the water absorption condition of the door outside handle coating under different conditions, and was applied to design structure optimally to avoid the non-return problems due to water absorption. A new standard was established for acceleration experiment of water absorption. The results can be used as a reference for further research and design of vehicle parts with similar absorbent materials.

Key words: vehicle door outside handle , polyamide , material selection , water absorption , Kriging interpolation method