ROPS试验台垂直加载系统的设计及研究

Design and Research of Vertical Load System of ROPS Test Bench

随着我国经济的高速发展,我国对工程车辆的需求越来越大,且工程车辆大型化程度也越来越高。这些大型工程车辆的ROPS尺寸较大,承载能力强,所以在检测时所要求的加载载荷也大,而目前国内现有的检测试验系统难以适应时代发展的需求,所以急需开发加载能力强的车辆保护结构试验台。首先确定好加载系统方案,然后设计加载上横梁的截面形状,通过截面计算出截面的惯性矩,然后对整个横梁进行强度、扰度、整体稳定性、局部稳定性进行校核验算,最后对设计的上横梁进行有限元仿真计算。

With the rapid development of China's economy,the demand for engineering vehicles in China is increasing,and the size of engineering vehicles is also getting larger and larger.These large-scale engineering vehicles have large ROPS size and strong bearing capacity.Therefore,the load required for inspection is also large.Since it is currently difficult for the current domestic detection and test systems to meet the needs of the times,developing vehicle protection with high loading capacity Structural test bench is in urgent need.First,determine the loading system plan.Design the cross-section shape of the loaded upper beam,and then calculate the moment of inertia of the section through the cross-section.Next,check and verify the strength,disturbance,overall stability,and local stability of the entire beam.Finally,the finite element simulation of the design of the upper beam.