UC知道请帮我翻译几段汽车的文章 急！！！
来源：百度知道 编辑：UC知道 时间：2024/06/03 07:13:04
(Articulated Dump Truck)
Fig. 3 shows the newly developed articulated dump truck.Our analysis was performed to evaluate the actual machine,where, of the main structural components that have comparatively low eigenfrequency and whose elastic characteristic cannot be ignored, rear frame was selected as the object.
4.1 Computation model
(1) Flexible body model for rear frame
Fig. 4 shows the model used for eigenvalue analysis with NASTRAN.
20 and more points that become the nodes of ADAMS rigid body model, including the hinge to connect the front frame and suspension mounting part, are made attachment points, and eigenvalue analysis was performed using the constrained mode method. While the number of the degrees of freedom of the FEM model is approx. 134000, the number of the degrees of freedom after reduction is only 164 in the
total of the physical degrees of freedom and the modal degrees
of freedom. In addi
4. Sample Application to Actual Machine
4．实际应用实例
(Articulated Dump Truck)
（铰接式自卸车）
Fig. 3 shows the newly developed articulated dump truck.Our analysis was performed to evaluate the actual machine,where, of the main structural components that have comparatively low eigenfrequency and whose elastic characteristic cannot be ignored, rear frame was selected as the object.
图 3 展示了一款新研制的铰接式自卸车。我们的分析是基于该车上具有相当低的固有频率，而弹性特征又不能被忽视的主要结构部件。因此我们选择后车架作为研究对象。
4.1 Computation model
4.1 计算模型
(1) Flexible body model for rear frame
（1）柔性车身模型的后车架
Fig. 4 shows the model used for eigenvalue analysis with NASTRAN.
20 and more points that become the nodes of ADAMS rigid body model, including the hinge to connect the front frame and suspension mounting part, are made attachment points, and eigenvalue analysis was performed using the constrained mode method. While the number of the degrees of freedom of the FEM model is approx. 134000, the number