百吨级工程车辆FOPS落锤冲击的动态仿真

江 建;张文明;段广洪;向东

振动与冲击 ›› 2011, Vol. 30 ›› Issue (10) : 241-244.

PDF(1189 KB)
PDF(1189 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (10) : 241-244.
论文

百吨级工程车辆FOPS落锤冲击的动态仿真

  • 江 建1; 张文明2; 段广洪1; 向东1
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Impacted dynamic simulation of the extra-large engineering vehicle fopssubjected to drop hammer

  • JIANG Jian1; ZHANG Wen-ming2; Duan Guang-hong1; XIANG Dong1
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摘要

应用动态显式有限元方法对百吨级工程车辆FOPS受落锤冲击整个过程的动态响应进行模拟研究。以某170吨电动轮矿用自卸车FOPS为例,建立了FOPS及落锤的有限元模型,讨论了边界条件及载荷的施加方法。分析了落锤冲击FOPS的能量转换规律、冲击力和FOPS冲击变形的规律,以及顶板厚度、落锤质量对FOPS变形量的影响。结果表明: FOPS构件在落锤第一次冲击时产生塑性变形所吸收的冲击能量为10343J,占总能量的88.6%,FOPS最大变形未侵入DLV,满足国际标准的要求。顶板厚度对加载中心的变形量影响很大,顶板越厚,变形量越小,当顶板厚度小于2.4mm时,FOPS不能满足要求, 落锤质量对变形量影响较小

Abstract

By applying the explicit dynamic finite element method the dynamic response of dropping hammer in collision experiments for the extra-large engineering vehicle FOPS was simulated. A 170 tons electric wheel mining dump truck was taken as an example to illustrate the methods for establishing finite element model and applying boundary conditions and loads. The rule of energy conversion of whole process, the impulse force form and the rule of impact deformation were analyzed. The rule of impact deformation for change thickness of roof panel and mass of drop hammer was analyzed when impact energy was constant. The results indicated that the FOPS has been the stage of plasticity mechanism deformation and absorbed 10343J energy at the first impact, 88.6% of the total energy. The FOPS structural component had not invaded DLV during being impacted; the FOPS met the standard of the international requirement. The influence of the deformation of the impact center on thickness of roof panel was great and on mass of drop hammer was less. The impact deformation became smaller with the increase of thickness and the FOPS was unqualified when the roof panel less than 2.4mm.

关键词

工程车辆 / FOPS / 冲击响应 / 动态显式有限元 / 非线性

Key words

engineering vehicle / FOPS / impact response / explicit dynamic finite element / nonlinear

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导出引用
江 建;张文明;段广洪;向东. 百吨级工程车辆FOPS落锤冲击的动态仿真[J]. 振动与冲击, 2011, 30(10): 241-244
JIANG Jian;ZHANG Wen-ming;Duan Guang-hong; XIANG Dong. Impacted dynamic simulation of the extra-large engineering vehicle fopssubjected to drop hammer[J]. Journal of Vibration and Shock, 2011, 30(10): 241-244

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