基于虚拟样机技术的桥式起重机动力学仿真
发布时间：2019-02-22 11:42
【摘要】：本文论述了桥式起重机的发展现状和设计方法，尤其是动态仿真技术的发展为产品的设计带来新的变化。产品的设计不但要注重产品的外观和性能，还要缩短产品的设计周期。因此如何提高产品的设计速度和质量尤为重要，同时产品具有经济性、可靠性、舒适性以及安全性。桥式起重机的传统设计主要以静态设计为主，通过计算截面的最大危险应力点验证设计的合理性。传统设计方法设计的产品安全系数过高，既浪费材料又增加了成本。 因此新的设计方法虚拟样机技术开始应用在机械产品设计中，通过静态分析及动态仿真来判断设计的合理与否，对缩短研发周期、降低成本有显著效果。以Pro/E软件、动态仿真ADAMS软件和有限元ANSYS等软件为平台，建立虚拟样机模型进行动力学仿真。 以箱形双梁桥式起重机为研究对象，由动力学理论确定小车运行机构、起升机构和大车运行机构的动力学模型，对不同工况下的起重机进行仿真。由Pro/E建立桥机模型，通过Pro/E和ANSYS软件的接口将模型传入ANSYS中，对主梁进行静力和模态分析，并通过Pro/E和ADAMS的接口将已经添加约束的模型导入ADAMS进行仿真。 对桥式起重机进行虚拟样机研究，是集设计、分析和仿真应用于桥式起重机的全新方法，为桥式起重机的设计提供可靠性的支持。
[Abstract]:This paper discusses the development status and design method of bridge crane, especially the development of dynamic simulation technology brings new changes to the product design. Product design should not only focus on product appearance and performance, but also shorten the product design cycle. Therefore, how to improve the design speed and quality of the product is particularly important, and the product has economy, reliability, comfort and safety. The traditional design of bridge crane is mainly static design. The rationality of the design is verified by calculating the maximum dangerous stress point of cross section. The safety factor of the traditional design method is too high, which not only wastes material but also increases the cost. Therefore, the new design method virtual prototyping technology has been applied in mechanical product design. Static analysis and dynamic simulation are used to judge whether the design is reasonable or not, which can shorten the R & D cycle and reduce the cost. On the platform of Pro/E software, dynamic simulation ADAMS software and finite element ANSYS software, a virtual prototype model is established for dynamic simulation. Taking the box-shaped double-beam bridge crane as the research object, the dynamic models of the trolley running mechanism, the lifting mechanism and the large truck operating mechanism are determined by the dynamic theory, and the cranes under different working conditions are simulated. The bridge machine model is established by Pro/E, and the model is put into ANSYS through the interface of Pro/E and ANSYS software. The static and modal analysis of the main beam is carried out, and the model with added constraints is imported into ADAMS through the interface between Pro/E and ADAMS for simulation. The research on virtual prototype of bridge crane is a new method for design, analysis and simulation of bridge crane, which provides reliability support for the design of bridge crane.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH215
本文编号：2428185
[Abstract]:This paper discusses the development status and design method of bridge crane, especially the development of dynamic simulation technology brings new changes to the product design. Product design should not only focus on product appearance and performance, but also shorten the product design cycle. Therefore, how to improve the design speed and quality of the product is particularly important, and the product has economy, reliability, comfort and safety. The traditional design of bridge crane is mainly static design. The rationality of the design is verified by calculating the maximum dangerous stress point of cross section. The safety factor of the traditional design method is too high, which not only wastes material but also increases the cost. Therefore, the new design method virtual prototyping technology has been applied in mechanical product design. Static analysis and dynamic simulation are used to judge whether the design is reasonable or not, which can shorten the R & D cycle and reduce the cost. On the platform of Pro/E software, dynamic simulation ADAMS software and finite element ANSYS software, a virtual prototype model is established for dynamic simulation. Taking the box-shaped double-beam bridge crane as the research object, the dynamic models of the trolley running mechanism, the lifting mechanism and the large truck operating mechanism are determined by the dynamic theory, and the cranes under different working conditions are simulated. The bridge machine model is established by Pro/E, and the model is put into ANSYS through the interface of Pro/E and ANSYS software. The static and modal analysis of the main beam is carried out, and the model with added constraints is imported into ADAMS through the interface between Pro/E and ADAMS for simulation. The research on virtual prototype of bridge crane is a new method for design, analysis and simulation of bridge crane, which provides reliability support for the design of bridge crane.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH215
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