泡沫铝填充结构自卸车副车架有限元分析  

The finite element analysis of the subframe filled with foam aluminum

作　　者：徐平[1] 苏子龙[1] 李仲[1] 王珏[1] 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《广西大学学报（自然科学版）》2014年第3期591-597,共7页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51375219);辽宁省教育厅科学技术研究(创新团队)资助项目(LN2010045)

摘　　要：副车架是自卸车众多部件中重要部件之一,它的性能好坏直接影响着整车的性能与寿命。为了提高汽车的节能环保性、安全性和舒适性,以轻量化设计为理念,设计了泡沫铝填充结构自卸车副车架,采用有限元仿真分析的方法分析了泡沫铝填充结构自卸车副车架的静动态特性。结果表明,在结构设计合理的情况下,与原型副车架相比,其重量减轻了8.72%,最大应力与最大位移分别减少了2.89%与5.62%,随机路面沿Z方向上的振动位移与振动加速度分别减少了30.9%与44.4%,表明泡沫铝填充结构自卸车副车架不仅能够实现汽车轻量化从而达到节能环保的目的,亦能够提高车辆的安全性和乘坐舒适性。研究结果可为提高汽车环保性、安全舒适性及拓展泡沫铝这种新型结构功能材料在汽车制造业中的应用范围提供参考。The subframe is one of the important parts of the dump track,whose properties directly affect the performance and life of the whole-vehicle. In order to improve the energy saving,environmental protection,safety,and comfort,a subframe filled with aluminum foam was designed under the concept of light-weight design,and the static and dynamic performance of the subframe were analyzed by using the method of finite element simulation analysis. The results shows that compared with the prototype subframe,the subframe filled with aluminum foam on the premise of reasonable design has an 8. 72% reduction in weight,and also has a decrease in the maximum stress and the maximal displacement by 2. 89% and 5. 62% respectively. Its vibration displacement and vibration acceleration along the Z direction decrease 30. 9% and 44. 4% on the random road demonstrating that the subframe filled with foam aluminum not only can achieve the goals of vehicle＇s light-weight,energy conservation and environmental protection,but also can improve the safety and comfort of the whole vehicle. The conclusion of the research can provide the references for improving the vehicle＇s environmental protection,safety and comfort,and for encouraging the application of tfoam aluminum in the automobile industry.

关 键 词：轻量化 泡沫铝 填充结构 副车架 静动态特性 舒适性 

分 类 号：TP142.3[自动化与计算机技术—控制理论与控制工程]