First carry on the self libration analysis to the bridge, use spatial four nodes elastic shell element SHELL63 and spatial two nodes elastic beam element BEAM44 to model the bridge.
首先对大桥进行自振特性分析，分别采用空间四节点弹性壳单元SHELL63和空间二节点弹性梁单元BEAM 44单元进行建模。
The structure characteristics and technology parameters of the driving bridge shell in the light truck are introduced.
介绍了轻型汽车驱动桥桥壳结构特点、工艺性能。
Our factory mainly produces vehicles, farm vehicles, construction machines bridge shell and the engine flywheel shell. The products mainly used in heavy-duty trucks, heavy trailers, large-scale buses.
我厂主要生产汽车、农用车、工程机桥壳和发动机飞轮壳，产品主要应用于重型卡车、重型拖车、大型客车等。
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