Porcess Optimization Research on Pulsating Hydroforming of Aluminium Alloy Front Impact Bar at Warm

来源 :2015中国汽车工程学会年会 | 被引量 : 0次 | 上传用户:bestopx
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  The formability of aluminium alloy impact bar by pulsating hydroforming process of was examined at different warm temperature.The results suggested that the formability of aluminium impact bar was largely improved by the optimized loading curves of internal pressure in the pulsating dydroforming using finite element simulation.The dynamic recrystallization appeared with increasing the train in process of the hydroforming,and which affects the slopes of several load curves of internal pressure until the first peak appeared.
其他文献
This paper evaluates the accuracy of equivalent linearization method (Eq.(1)) adopted in AASHTO through comparison of nonlinear and linear time history analysis.The isolation system is characterized b
会议
Maintenance of existing steel structures is of great importance in Japan due to the rapid increasing number of aged structures (Lin et al.,2013).A strengthening method for old steel railway bridges by
会议
Structural optimization is the subject of achieving the best performance for a structure with various constraints such as a given amount of material,limitation of peak stress and deflection.Based on s
会议
在汽油价格不断上涨及加气站数量相对较少的形势下,开发汽油/CNG两用燃料发动机具有重要意义.本文介绍了当前汽油/CNG两用燃料发动机的主流开发思路,同时以一款1.5L排量的四缸汽油/CNG两用燃料发动机的工程化开发实例,B发动机的工程化开发实例,说明以汽油机为基础开发汽油/CNG两用燃料发动机,在工程化上是可行的。虽然在CNG工况下发动机动力性水平会下降15%左右,但由于此种开发模式具有开发周期短
本文所设计的辅助ECU缸压采集与燃烧状态计算策略,可在实际发动机运行中,代替实验室燃烧分析仪的作用,通过与主控ECU通信,实现缸压的闭环控制,受限于ECU的处理能力,软件在采样时序中断中仅完成采集缸压信号与计算平均指示有效压力(IMEP)的任务。而累积放热率与CA50的计算,则放置到ECU主函数中进行,当软件采集完一缸的缸压数据之后,存储在一个数组中,并通知主函数采集完成,主函数在ECU空余时间依
An important issue in the analysis of integral bridges is how to model the interaction of abutments,foundations and piles with their surrounding soil.In recent years,various studies have been conducte
会议
In Japan,the seismic design code of infrastructures has been revised and their seismic performance has been improved,whenever those were severely damaged under large earthquake,Japan Road Association
会议
The designs of cable supported bridges,and the movements they experience,are typically considerably more complex than those of other bridge types,increasing both the importance of inspection and maint
会议
As it is well known that Greece has a moderate to high seismic hazard,and Athens is on the moderate scale of the Greek Seismic Zonation Map,the Stavros Niarchos Foundation (SNF),which is planned to en
会议
Self-driving car navigation with obstacle avoidance problem is a hot topic in academic world.The goal of this problem is to design an autonomous car with learning ability to find a collision-free path