论文部分内容阅读
70年代以来,汽车工业界为了适应能源法规要求,在汽车轻量化方面进行了大量的研究并取得了长足的进步。最初,汽车工业界通过改变设计使传统的有车架汽车变成无车架汽车,使车身具有承载功能,从而使汽车减重且尺寸缩小。随后,汽车工业界一直寻求并应用新材料、新工艺和新设计方法,使汽车进一步减重。近来,美国汽车工业界研究提出Holistic设计方法,将无车架汽车的钢质车身作为一个整体(而不是作为分离零件的组合体)来进行处理,综合考虑钢材和它的工程性质,通过系统分析、优化设计以实现汽车车身的大幅度减重及降低制造成本。
Since the 1970s, the automobile industry has done a great deal of research and made considerable progress in vehicle lightweighting in order to meet the requirements of energy laws and regulations. Initially, the automotive industry changed the design of a traditional frame-less car into a frameless car, giving the car body a load bearing function that allowed the car to lose weight and size. Subsequently, the automotive industry has been seeking and applying new materials, new processes and new design methods to make the car further weight loss. Recently, the U.S. automotive industry has proposed a Holistic design approach that treats the steel body of a frameless automobile as a whole (rather than as a combination of separate parts), taking into account the steel and its engineering properties, through systematic analysis , Optimize the design to achieve substantial weight loss of the car body and reduce manufacturing costs.