The invention provides a fatigue life analysis method of a heavy truck battery pack support and a heavy truck, the fatigue life analysis method of the heavy truck battery pack support comprises the following steps: establishing a virtual test field, the virtual test field has different bad road surfaces, and one bad road surface is a deep pit road surface; a whole vehicle multi-body dynamic model is established, and the limit impact acceleration during simulation operation on a deep pit road surface and the vibration acceleration during simulation operation on other bad road surfaces are obtained; adding the vibration fatigue damage value and the impact fatigue damage value to obtain a total fatigue damage value; and evaluating the fatigue life of the battery bracket according to the total fatigue damage value, and optimizing the structure of the battery pack bracket for the weak position, so that the fatigue life of the battery pack bracket meets the requirement. According to the fatigue life analysis method for the heavy truck battery pack support, the vibration fatigue damage value and the impact fatigue damage value are added to obtain the total fatigue damage value, the fatigue life of the battery pack support is evaluated, and the battery pack support is optimized.
本发明提供了一种重卡电池包支架的疲劳寿命分析方法及重卡车辆,该重卡电池包支架的疲劳寿命分析方法包括以下步骤:建立虚拟试验场,虚拟试验场具有不同的坏路路面,且其一坏路路面为深坑路面;建立整车多体动力学模型,并获取在在深坑路面模拟运行时的极限冲击加速度,以及在其他坏路路面模拟运行时的振动加速度;将振动疲劳损伤值和冲击疲劳损伤值相加获得总疲劳损伤值;根据所述总疲劳损伤值评估电池支架疲劳寿命,针对薄弱位置优化电池包支架的结构,以使电池包支架的疲劳寿命满足要求。本发明的重卡电池包支架的疲劳寿命分析方法,将振动疲劳损伤值和冲击疲劳损伤值相加获得总疲劳损伤值,评估电池包支架疲劳寿命并对电池包支架进行优化。
Heavy truck battery pack support fatigue life analysis method and heavy truck
重卡电池包支架的疲劳寿命分析方法及重卡车辆
2024-10-01
Patent
Electronic Resource
Chinese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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