门式起重机仿真检测研究

发布时间：2019-05-23 19:52

【摘要】：门式起重机械作为一种大型、复杂的机械系统，在运行过程中主梁、部件之间的相互作用可能会造成主梁下挠、部件严重损坏、使用寿命缩短、甚至会造成人身伤亡及设备事故,给企业造成严重损失，，但是目前却难以对大吨位门式起重机的金属结构进行现场满载检测。本文以MG0318双主梁门式起重机为研究对象，运用ADAMS和ANSYS软件对其进行仿真检测分析，探讨利用现场小吨位载荷检测数据对仿真检测数据进行修正，并在其基础上对门式起重机进行仿真满载检测。主要做了如下工作：首先，根据动力学基本理论建立门式起重机的动力学模型，利用ADAMS软件对门式起重机进行不同工况的接触力分析及钢丝绳在联合工况下的拉力分析，得到相应的接触力曲线及钢丝绳的拉力曲线，并对门式起重机的大车运行机构进行碰撞分析，得到大车车轮的抬高曲线；其次，运用ANSYS软件对门式起重机样机模型进行不同工况下的静力学检测分析，得到相应的云图，并对有限分析的最大应力处进行现场应力检测，利用现场小吨位载荷检测的数据对有限元检测数据进行修正，并在其基础上对门式起重机进行仿真满载应力检测；结合实例验证表明：利用现场小吨位载荷检测数据对仿真检测数据进行修正，对门式起重机进行仿真满载检测具有较高的准确性；最后，对门式起重机样机模型进行模态和瞬态分析，得出相应的固有频率和振型、位移时间历程曲线。根据上述研究并结合实例验证基于现场小吨位载荷检测数据仿真检测分析的正确性与合理性。为了实现同类型、不同尺寸参数的门式起重机仿真检测，采用Visual Basic6.0编程软件开发了基于Pro/E、ANSYS、ADAMS的检测系统，该系统包括参数化建模、强度分析、刚度分析、模态分析、瞬态分析、满载预判等模块。
[Abstract]:As a large and complex mechanical system, the interaction between the main beam and the components may cause the deflection of the main beam, the serious damage of the components and the shortening of the service life of the main beam. It will even cause personal casualties and equipment accidents, which will cause serious losses to enterprises, but at present, it is difficult to detect the metal structure of large tonnage gantry cranes. In this paper, the MG0318 double main beam gantry crane is taken as the research object, and the simulation detection and analysis are carried out by using ADAMS and ANSYS software, and the correction of the simulation detection data by using the field small tonnage load detection data is discussed. On the basis of it, the full load detection of gantry crane is carried out. The main work is as follows: firstly, according to the basic theory of dynamics, the dynamic model of gantry crane is established, and the contact force analysis of gantry crane under different working conditions and the tension analysis of wire rope under combined working condition are carried out by using ADAMS software. The corresponding contact force curve and the tension curve of the wire rope are obtained, and the collision analysis of the running mechanism of the gantry crane is carried out, and the elevation curve of the wheel of the gantry crane is obtained. Secondly, ANSYS software is used to detect and analyze the statics of the prototype model of gantry crane under different working conditions, and the corresponding cloud picture is obtained, and the field stress detection is carried out at the maximum stress of the finite analysis. The finite element detection data are modified by using the field small tonnage load detection data, and the full load stress detection of gantry crane is carried out on the basis of the finite element detection data. Combined with an example, it is proved that the simulation test data are modified by using the field small tonnage load detection data, and the simulation full load detection of gantry crane has high accuracy. Finally, the modal and transient analysis of the prototype model of gantry crane is carried out, and the corresponding natural frequency, vibration mode and displacement time history curve are obtained. According to the above research and an example, the correctness and rationality of the simulation detection analysis based on the field small tonnage load detection data are verified. In order to realize the simulation and detection of gantry crane with the same type and different size parameters, a detection system based on Pro/E,ANSYS,ADAMS is developed by using Visual Basic6.0 programming software. The system includes parametric modeling, strength analysis and stiffness analysis. Modal analysis, transient analysis, full load prediction and other modules.
【学位授予单位】：福建农林大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH213.5

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