关联用户的整车结构耐久试验规范制定方法

整车结构耐久试验是汽车研发项目验证阶段中的关键环节。文章论述了关联用户实际使用的整车结构耐久试验规范开发的重要性和总体思路,介绍了用户关联技术工程实践的具体过程,并对各环节进行了关键的方法阐述。实际验证结果表明,该方法可以保证整车结构耐久试验精确关联实际用户受力,同时可极大提升整车研发阶段中的验证效率,对整车可靠性开发起到了重要的作用。

车身前悬盖板的准静态仿真分析与结构优化

文章研究了车身准静态强度分析的2种典型极限工况,并利用有限元方法对某MPV白车身进行强度特性分析。基于实际整车结构耐久试验车身的开裂故障,对车身局部结构进行优化,经过后续的路试试验验证了优化方案的可靠性。通过研究,可以获得汽车白车身整体的应力分布情况,快速发现结构的薄弱位置,在设计前期即可对其进行优化改进,从而可以提高产品性能,缩短开发周期。文中的准静态强度分析方法同样可以推广到底盘、门盖等相关结构的分析中,具有较好的工程指导意义。

Durability of Stress Ribbon Bridge Checked during Loading Test

Stress ribbon bridges have many advantages and became recently more popular mostly because of their versatile form, slender decks giving a light aesthetic impression and durability assured by post tensioned concrete. The paper presents the first in Poland stress Ribbon Bridge constructed last year. A static and dynamic analyse of the model is presented as well as construction solutions which were used to achieve the highest durability. The bridge was checked during static and dynamic load test. The results of this prove test were compared with results obtained from examination and study of other different bridge structures. It confirmed that the bridge has good dynamic resistance and greater stiffness than assumed in the design.