摘要
以某双排驾驶室商用车车型为研究对象,对其在疲劳耐久性试验中B柱出现开裂现象进行了研究,建立了双排驾驶室有限元模型。通过计算得到了驾驶室的弯曲和扭转模态频率以及应变能密度分布情况,通过模拟驾驶室使用工况再现了开裂现象。通过优化驾驶室悬置刚度、加强驾驶室B柱开裂位置局部刚度,有效解决了该车型B柱开裂问题。
With a double-row commercial vehicle model as the study objective, its B-pillar cracking in the fatigue durability test has been studied, we have established the FE model for the double row cab. By calculation, bending and torsional modal frequency and the strain energy density distribution of the cab are obtained. By simulating cab operating condition, cab cracking is reproduced. By optimizing the cab suspension stiffness, strengthening the local stiffness of the cab B-pillar cracking position, the deficiency of cab B-pillar cracking of this model is eliminated.
出处
《汽车技术》
北大核心
2013年第12期8-11,共4页
Automobile Technology
关键词
商用车驾驶室
B
柱开裂
模态
悬置刚度
Commercial vehicle cab
B-pillar crack
Mode
Suspension Stiffness
