遥控履带车车架有限元模态分析

Analysis of the Frame Finite Element Mode of Remote-Controlled Tracked Vehicle

履带车在行驶的过程中常承受多源复杂激励作用而产生振动,影响履带车监控性能及工作寿命.以全国大学生市级创新训练项目"电磁辐射实时监控无人车"为例,借助三维建模软件Solidworks建立其三维模型,而后将车架模型导入ANSYS有限元分析软件中进行离散化处理,并基于Block Lanczos算法求解车架振动模态.分析结果表明,小车固有的模态不会与小车特征频率合拍,不会产生共振问题.

Tracked vehicles often suffer from multi-source complex excitation during driving, which results in vibration, and affects the monitoring performance and working life of tracked vehicles. Taking the municipal innovation training project "Real-time monitoring of electromagnetic radiation unmanned vehicle" as an example, the three-dimensional model of the unmanned vehicle is established by using the three-dimensional modeling software Solidworks, then the frame model is imported into ANSYS finite element analysis software for discretization, and the vibration mode of the frame is solved based on the Block Lanczos algorithm. The analysis results showthat the inherent modesof the vehicle do notmatch the characteristic frequenciesof the vehicle, and there isno resonance problem.