汽车车架扭转应力分析方法的研究

通过对常见开口截面车架在典型工况时扭转应力的分析，推导出扭转应力计算公式，从而得出了开口截面车架的一些应力分布规律，提出了改善车架扭转应力分布的具体措施．对汽车车架设计方案的拟定和车架应力分析具有指导作用。

The research of the method for torsional stress analysis of the vehicle frame

Probably many people have neglected the problems of the cemetery establishment and development, which, if not properly managed, will influence the harmonious development of cities. In view of the non-regeneration of the cemetery land and according to the consuming mode of cemetery in Shanghai, the dead population will amount to ten millions while the cemeteries are draining Shanghai's precious cropped land resources. Therefore the related sectors are supposed to adopt measures actively and the government should legislate, manage and supervise in the principle of establishing Economized Cemetery. Consumers are also expected to gradually change their traditional concept to adopt economized consuming mode and to choose burying method occupying less or no land. Meanwhile the industry association should build a bridge to help communication between the government, managers and consumers. Thus, the sustainable development of the cemetery industry in Shanghai and the strategic blueprint of establishing economized cemetery can be realized. In addition, in order to recycle the land for cemetery, a renovation system has to be created to satisfy the consumer's needs.