VPG-based commercial vehicle load spectrum equivalence method

The invention discloses a VPG-based commercial vehicle load spectrum equivalent method. The method comprises the following steps: obtaining a test field load spectrum; comparing and analyzing each test signal data, and enabling damage from each load to full load to be equivalent; obtaining a VPG simulation load spectrum; carrying out load spectrum damage equivalent optimization; and outputting the equivalent load spectrum. According to the method, the benchmarking problem of simulation data and experimental test data under the condition that the load change range of the commercial vehicle is large is solved, the model benchmarking workload is shortened, the difficulty is low, the precision of the load spectrum obtained by the commercial vehicle through the virtual simulation technology is improved, and the fatigue performance of the vehicle can be better and more accurately predicted. 本发明公开了一种基于VPG的商用车载荷谱等效方法，包括如下步骤：试验场载荷谱获取；各测试信号数据对比分析，各载重到满载的损伤等效；VPG仿真载荷谱获；载荷谱损伤等效优化；等效载荷谱输出。本发明解决了商用车载重变化范围大的情况下仿真数据和试验测试数据的对