基于ADAMS的有轨起重机参数化建模及仿真分析

The Parametric Modeling and Simulation Analysis of the Crane Based on ADAMS

针对有轨起重机的工作特点和结构尺寸,基于二次开发的技术在ADAMS中建立起重机大车结构的参数化模型,只需在设计界面输入尺寸就可以快速建立模型。本文提出的建模方法在使用时无需更改变动约束副,而且达到快速建模的目的。在ADAMS中创建一种计算轨道和车轮在转弯过程中偏移量的方法,主要采用简化模型、ADAMS点线约束和移动副保证在转弯过程中车轮和轨道始终相垂直。这种方法不但可以求出仿真过程中偏移量的大小,用来验证有轨起重机是否在轨道上出现啃轨,而且对其他机械系统的二次开发和轨迹修正提供有益参考。

According to the work characteristic and structure size of the rail crane, the parameterized model of the structure of the crane cart is established in ADAMS based on the secondary development of the technology, and the model and structure of the crane can be established just through modifying the input size in design interface. The proposed modeling method does not need to change constraints, and achieve the goal of rapid modeling. This paper create a method to calculate the offset between rail and wheel in the process of turning in ADAMS, which guaranteed that the wheel and rail is always vertical in the process of turning by using the simplified model, ADAMS point and line constraint and mobile vice joint. The method not only can calculate the size of the offset in the process of simulation and verify whether rail lifting in orbit can appear card rail phenomenon but also offer a reference for the secondary development of other mechanical systems and trajectory correction.