塔设备非标轴式吊耳及支撑结构的三维有限元分析和结构优化设计

发布时间：2018-01-02 04:27

本文关键词：塔设备非标轴式吊耳及支撑结构的三维有限元分析和结构优化设计　出处：《北京化工大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着工程设备大型化、重型化的发展,上千吨的工程设备已屡见不鲜,而保证这些大型设备的安全吊装就显得越来越重要。大型塔设备的吊装一般采用两台重型起重机配合抬吊的方法,在这种吊装方法中设计者需要设计主尾吊点吊耳及局部加强结构。根据塔设备既长又重的特点,一般选取轴式吊耳配合尾部吊耳来完成吊装。然而设计标准中轴式吊耳的最大承重为200t,采用标准中轴式吊耳无法满足重型塔设备的吊装,因此现在对于重型塔设备吊耳一般都需要进行非标设计。吊耳的非标设计主要参照标准轴式吊耳的基本结构形式,根据具体吊装特点为轴式吊耳设计一些加强结构,选择合适的吊耳结构尺寸,从而初步得到满足吊装的非标吊耳。接下来需要对所设计非标吊耳以及主尾吊点局部的加强结构还有塔设备本身进行强度校核,本文采用ANSYS软件进行有限元分析,根据得到的应力变形结果对结构强度进行校核,最终确定所设计的非标吊耳及局部加强结构是否满足相应塔设备的安全吊装。本文主要研究的是为某重型塔设备设计吊耳及局部加强结构；对所设计的非标吊耳、局部加强结构及塔设备本身进行强度校核,评估吊耳及局部加强结构是否满足重塔的安全吊装；对轴式吊耳进行优化分析,得到轴式吊耳轴壁厚度、吊耳轴径以及吊耳井字筋板间距对轴式吊耳强度的影响规律,同时还对所设计的局部加强结构进行了优化分析。
[Abstract]:With the development of large-scale and heavy-duty engineering equipment, thousands of tons of engineering equipment has become common. However, it is more and more important to ensure the safety of these large equipment. Generally, two heavy cranes are used to hoist the large tower equipment. In this method, the designer needs to design the main-tail hoist and the local strengthening structure. According to the characteristics of long and heavy tower equipment, the shaft hoist is usually selected to complete the hoisting with the tail hoist. However, the maximum bearing capacity of the axle hoist in the design standard is 200t. The standard shaft hoist cannot satisfy the lifting of heavy tower equipment. Therefore, it is generally necessary to carry out non-standard design for the lifting lugs of heavy tower equipment. The non-standard design of the hoists mainly refers to the basic structure of the standard shaft hoists. According to the characteristics of hoisting, some strengthening structures are designed for the axle-type hoists, and the appropriate dimensions of the hoisting lugs are selected. Therefore, the non-standard hoisting gear can be preliminarily obtained. Then, the strength check of the designed non-standard hoist and the local strengthening structure of the main tail lifting point as well as the tower equipment itself should be carried out. In this paper, the finite element analysis is carried out with ANSYS software, and the strength of the structure is checked according to the result of stress and deformation. Finally, it is determined whether the designed non-standard hoist and local reinforcement structure meet the safety lifting of the corresponding tower equipment. This paper mainly studies the design of hoist and local strengthening structure for a heavy tower equipment. The strength of the designed non-standard hoist, the locally strengthened structure and the tower equipment itself is checked, and the safety hoisting of the heavy tower is evaluated. The influence of shaft wall thickness, diameter of shaft and spacing of bezel plate on the strength of shaft suspension was obtained by optimizing analysis of the shaft hoist. 3. The influence of the shaft wall thickness, the diameter of the shaft and the spacing of the sash plate on the strength of the shaft suspension were obtained. At the same time, the design of the local strengthening structure is optimized and analyzed.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH21

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