基于Hyperworks的某SUV前副车架强度 疲劳性能优化研究

前副车架是SUV底盘关键承载部件,对整车性能有重要影响,文章针对某SUV车型前副车架进行了极限强度和台架疲劳工况CAE分析和研究,然后进行了台架刚度测试和强度工况测试,CAE分析和台架试验结果表明,此SUV前副车架刚强度和抗疲劳性能满足目标要求。     

基于ABAQUS的某SUV前转向节力学性能仿真和试验研究

前转向节是SUV底盘关键承载部件,对整车性能有重要影响,文章针对某SUV前转向节进行了强度和疲劳CAE分析和研究,然后进行了台架刚度测试和强度工况测试,CAE分析和台架试验结果表明,此SUV前转向节零件的力学性能满足目标要求。     

基于Ncode的某SUV后转向节强度疲劳性能仿真和试验研究

后转向节是SUV车型底盘系统的关键承载部件,对整车性能有重要影响,文章针对某SUV后转向节进行了强度和疲劳CAE分析,然后进行了台架刚度测试和强度与疲劳测试,CAE分析和台架试验结果表明,某SUV车型后转向节零件的力学性能满足目标要求.     

基于ABAQUS的某SUV引擎盖力学性能仿真与试验研究

引擎盖是SUV车型车身结构重要组成部件,对整车综合结构性能有重要影响,文章针对某SUV引擎盖系统部件进行了模态和刚度CAE分析和研究,然后进行了台架强度工况测试,CAE分析和台架试验结果表明,此SUV引擎盖的力学性能满足目标要求。     

基于Nastran的某SUV后副车架力学性能仿真和试验研究

后副车架是SUV底盘关键承载部件,对整车性能有重要影响,文章针对某SUV车型后副车架进行了强度和疲劳CAE分析和研究,同时进行了台架对标刚度测试和强度工况测试,结果表明此SUV后副车架刚强度和抗疲劳性能满足目标要求。     

基于试验与模态分析的尾门抖动问题研究与优化

文章针对某SUV车型尾门在实车评审中出现的关闭抖动问题进行了对标分析、实物试验,并结合CAE模态分析给出了优化措施。经过实车验证,有效地解决了尾门关闭抖动问题,最后总结了尾门结构设计的要点,对后续车型设计具有较好的指导意义。     

某乘用车轮胎系统NVH性能仿真与试验研究

轮胎是汽车重要的安全零部件,汽车通过它与地面进行接触,传递驱动力、制动力和转向力,对整车综合结构性能有重要影响,文章针对某SUV三种轮胎方案进行了CAE模态分析然后进行了台架强NVH测试,CAE分析和试验结果表明,两个轮胎优化方案NVH性能满足目标要求。     

某乘用车型后悬控制臂力学性能仿真和试验研究

后悬控制臂是底盘系统的关键承载部件,对整车性能有重要影响,文章针对某乘用车型后悬控制臂进行了CAE强度和疲劳分析,并进行了台架刚度测试和疲劳测试,CAE分析和台架试验结果表明,该车型后悬控制臂零件的力学性能满足目标要求。     

基于ABAQUS的某商用车后桥系统强度耐久性能仿真研究

文章基于有限元法,采用ABAQUS软件,对某商用车后桥系统进行了CAE强度分析,超载30%工况强度分析、扭转耐久、垂直弯曲耐久、转弯弯曲台架三工况CAE疲劳耐久分析,分析结果显示,后桥系统强度和耐久性能满足设计目标。     

某型SUV扭转梁关键焊缝耐久优化研究

扭转梁式半独立悬架已越来越多地应用于城市SUV后桥系统中,扭转梁作为后桥系统传力受力方面的关键零件,工作状况严苛而恶劣。本文以某城市SUV车辆后扭转梁为例,借助CAE分析工具识别出该扭转梁高应力敏感区域及关键焊缝,针对关键焊缝形态进行焊接工艺优化,基于台架试验对其疲劳寿命进行考核和验证。结果表明,优化后扭转梁能顺利通过台架及路试,满足整车疲劳耐久安全需求。     

结构仿真结合疲劳台架试验加速后桥开发

通过对零件的台架试验受力状况进行CAE仿真,对影响后桥总成台架疲劳试验寿命的危险区域重点分析,控制和调整生产工艺参数,制造出合格的产品。试制的后桥总成成功通过疲劳台架试验和道路试验,满足各项技术要求。结构仿真与疲劳台架试验相结合加速了后桥开发、制造和功能验证流程。     

提高陆风SUV汽车正面碰撞安全性的研究

针对"陆风SUV汽车被动安全性改进开发"项目的要求,采用CAE技术,找出了陆风SUV现有车身结构存在的问题,提出了改进方案,并对其效果进行了验证。     

球墨铸铁转向节柱疲劳性能研究

针对某车型球墨铸铁转向节柱转向横拉杆臂疲劳台架试验不合格的情况,利用CAE技术模拟分析了该零件结构对疲劳性能的影响,通过对比试验研究了球墨铸铁主要化学成分对球墨铸铁机械性能和疲劳寿命的影响,并提出局部增大壁厚、改善过渡圆角的改进措施.经过试验验证,在质量不增加的情况下,改进后的球墨铸铁转向节柱疲劳寿命比改进前提高30%.     

Optimum SUV bumper system design considering pedestrian performance

Until recently, passenger cars have primarily interested in pedestrian protection performance. Nowadays, however, it is important for a sport-utility vehicle (SUV) to meet the bumper system standards for pedestrian safety. For a SUV bumper system, there are some difficulties in attaining a high level of pedestrian performance for the lower legform. An SUV has a high bumper position from the ground level, and the bumper approach angle must also be secured, which has an effect on car insurance fees. Due to these reasons, it is difficult to meet the pedestrian performance of the lower legform for an SUV. In this paper, a comparative study was performed on various SUV bumper systems, and a concept model for a SUV bumper system was developed, which is expected to meet the pedestrian performance by using the Pugh method. The design control factors were defined to affect the bumper pedestrian performance through the experiences of tests and analyses. For the noise factor to affect the pedestrian performance, the deviation of the impactor position was selected at the moment of impact. The design control factors were optimized by using the Taguchi optimization technique. For the Taguchi method, an L18 orthogonal array table of design control factors was used in the optimization process. Particularly, for the optimization of the bumper corner region, an optimization analysis was performed three times to meet pedestrian performance. Based on the results of the Taguchi optimization method, the sensitivity of the bumper design parameters was studied, and a new SUV bumper system is proposed that satisfies the pedestrian performance of the lower legform. The optimized bumper system should obtain a full Euro-NCAP score of 6 points for the bumper test. The pedestrian performance of the optimized bumper system is validated by using a CAE (Computer Aided Engineering) analysis, which has been proven to be in accurate. A comparison between the test and analysis results is shown for the validation of accuracy. By using the optimized bumper system, the tests and development costs of a bumper can be reduced.     

整车道路模拟行驶载荷谱采集方法研究

为了满足整车道路模拟试验对载荷谱的需求,本文介绍实车动态载荷谱采集、处理、分析和特征提取的方法,为进行实验室整车道路模拟试验以及CAE仿真分析奠定基础.     

排气系统热端模态对车内轰鸣影响的研究

某1.5T SUV车型在开发过程中,发现在加速工况下,车内存在3000r/min、3600r/min的轰鸣声,严重影响主观感受。经过排查试验,确定问题原因为排气系统热端模态被激发,振动通过吊钩传递到车身,引起车身局部钣件共振,最终引起车内轰鸣声。利用CAE分析制定优化方案并进行实车验证,经过验证,加速轰鸣声改善明显。