QTZ40型塔式起重机的设计及其性能分析
发布时间：2018-11-24 20:20
【摘要】：随着建筑物的增多及其高度的增加，对塔式起重机的使用会越来越多，所以对塔机进行合理的设计会直接关系到塔机的安全性能、工作效率及经济性等。目前，国内对塔机的研究，多采用有限元分析软件完成不同工况下的静力学分析以及模态分析，也有的研究者对塔机进行瞬态动力学分析、谐响应分析等，然而对塔机进行刚柔耦合动力学仿真分析的则相对较少。采用ADAMS软件进行动力学分析可以很有效的分析塔机的动态性能，也可以更好地模拟塔机实际工作时的状态。本文的研究对今后更好的进行塔机的设计有一定的指导意义，通过运用一些计算软件协助于塔机的设计及分析，在一定程度上可以减少塔机的研制周期、节约成本。 本文是基于QTZ40型塔式起重机的设计，并利用有限元分析软件ANSYS、三维建模软件UG和机械系统动力学自动分析软件ADAMS完成了塔机的相关分析。本文主要完成了以下几个方面的研究： 1．简单介绍了本论文中需要用到的一些基本理论，列出了QTZ40型塔式起重机的设计标准及基本参数，计算出塔机所主要承受的载荷，完成了QTZ40型塔式起重机三大工作机构的设计及计算。 2．利用有限元分析软件ANSYS完成了塔机的有限元建模，并且对其进行两种典型工况下的静力学分析，得出两种工况下的最大应力发生位置以及最大位移值，并且证明塔机的最大应力小于材料的许用应力，塔机的强度满足要求，并存在一定的材料剩余。 3．对塔式起重机进行模态分析，分析得出塔机各阶模态的固有频率及其振型图，证明塔机为低频振动系统，对塔机各阶的振型图进行了总结分析。 4．利用UG与ADAMS之间的接口完成塔机虚拟样机模型的建立；利用ANSYS生成起重臂架结构的模态中性文件，并通过ANSYS与ADAMS之间的接口将其导入到ADAMS中，，替换虚拟样机模型中的起重臂架结构的刚性体文件。 5．对塔机的刚柔耦合模型进行两种起升工况下的仿真分析，得出两种起升工况下动载荷的变化曲线，分析了起升动载荷对塔机工作时的影响。
[Abstract]:With the increase of buildings and their height, the use of tower cranes will be more and more, so the reasonable design of tower cranes will directly affect the safety performance, work efficiency and economy of tower cranes. At present, most of the researches on tower cranes in China use finite element analysis software to complete static analysis and modal analysis under different working conditions. Some researchers also do transient dynamic analysis and harmonic response analysis of tower cranes. However, the dynamic simulation of rigid-flexible coupling of tower crane is relatively rare. The dynamic performance of tower crane can be analyzed effectively by using ADAMS software, and the state of tower crane can be simulated better. The research in this paper has certain guiding significance for the better design of tower crane in the future. By using some calculation software to assist in the design and analysis of tower crane, the development cycle of tower crane can be reduced to a certain extent and the cost can be saved. This paper is based on the design of QTZ40 tower crane and completes the related analysis of tower crane by using the finite element analysis software ANSYS, 3D modeling software UG and the mechanical system dynamics automatic analysis software ADAMS. This paper mainly completed the following aspects of the research: 1. Briefly introduced some basic theories needed in this paper, listed the design standards and basic parameters of QTZ40 tower crane, calculated the main load of tower crane, 2. The design and calculation of three working mechanisms of QTZ40 tower crane are completed. 2. The finite element modeling of tower crane is completed by using finite element analysis software ANSYS, and the static analysis of the tower crane under two typical working conditions is carried out, and the position of maximum stress and the maximum displacement value under two kinds of working conditions are obtained. It is proved that the maximum stress of the tower crane is less than the allowable stress of the material, the strength of the tower crane meets the requirements, and there is a certain material surplus. 3. The modal analysis of tower crane is carried out, and the natural frequency and vibration pattern of each mode of tower crane are obtained. It is proved that the tower crane is a low frequency vibration system, and the vibration mode diagram of each order of tower crane is summarized and analyzed. 4. The virtual prototype model of tower crane is built by using the interface between UG and ADAMS. The modal neutral file of lifting boom structure is generated by ANSYS and imported into ADAMS through the interface between ANSYS and ADAMS to replace the rigid body file of lifting boom structure in virtual prototype model. 5. The rigid-flexible coupling model of tower crane is simulated and analyzed under two lifting conditions, and the curve of dynamic load under two lifting conditions is obtained, and the influence of lifting load on tower crane is analyzed.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH213.3
本文编号：2354914
[Abstract]:With the increase of buildings and their height, the use of tower cranes will be more and more, so the reasonable design of tower cranes will directly affect the safety performance, work efficiency and economy of tower cranes. At present, most of the researches on tower cranes in China use finite element analysis software to complete static analysis and modal analysis under different working conditions. Some researchers also do transient dynamic analysis and harmonic response analysis of tower cranes. However, the dynamic simulation of rigid-flexible coupling of tower crane is relatively rare. The dynamic performance of tower crane can be analyzed effectively by using ADAMS software, and the state of tower crane can be simulated better. The research in this paper has certain guiding significance for the better design of tower crane in the future. By using some calculation software to assist in the design and analysis of tower crane, the development cycle of tower crane can be reduced to a certain extent and the cost can be saved. This paper is based on the design of QTZ40 tower crane and completes the related analysis of tower crane by using the finite element analysis software ANSYS, 3D modeling software UG and the mechanical system dynamics automatic analysis software ADAMS. This paper mainly completed the following aspects of the research: 1. Briefly introduced some basic theories needed in this paper, listed the design standards and basic parameters of QTZ40 tower crane, calculated the main load of tower crane, 2. The design and calculation of three working mechanisms of QTZ40 tower crane are completed. 2. The finite element modeling of tower crane is completed by using finite element analysis software ANSYS, and the static analysis of the tower crane under two typical working conditions is carried out, and the position of maximum stress and the maximum displacement value under two kinds of working conditions are obtained. It is proved that the maximum stress of the tower crane is less than the allowable stress of the material, the strength of the tower crane meets the requirements, and there is a certain material surplus. 3. The modal analysis of tower crane is carried out, and the natural frequency and vibration pattern of each mode of tower crane are obtained. It is proved that the tower crane is a low frequency vibration system, and the vibration mode diagram of each order of tower crane is summarized and analyzed. 4. The virtual prototype model of tower crane is built by using the interface between UG and ADAMS. The modal neutral file of lifting boom structure is generated by ANSYS and imported into ADAMS through the interface between ANSYS and ADAMS to replace the rigid body file of lifting boom structure in virtual prototype model. 5. The rigid-flexible coupling model of tower crane is simulated and analyzed under two lifting conditions, and the curve of dynamic load under two lifting conditions is obtained, and the influence of lifting load on tower crane is analyzed.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH213.3
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