基于ANSYS workbench电梯结构力学分析与研究

发布时间：2018-03-13 06:25

本文选题：轿架结构　切入点：静力学分析　出处：《苏州大学》2016年硕士论文　论文类型：学位论文

【摘要】：伴随着国内电梯行业竞争的不断加剧,整梯厂家通过降低成本来迎合客户的需求,很多公司常用的降本方法是结构设计优化及寻找更具性价比的替代产品。替代产品(主要为标准采购件)只需找到合适的且具有高性价比的产品替代即可,但对于结构设计优化,原有的经典公式推导法已经远远不能满足现有市场需求了,特别是对于一些结构组件及带有加强筋的物料(例如轿架),原来的计算方法渐渐显示出它的不足,这时候就急需寻找一种新的替代解决方案。本课题来源于某电梯公司的实际项目,根据市场及前线的实际需求,开发出安全、经济效益良好的电梯品种成为研发部当务之急,而原有开发思路及方法已明显严重滞后于实际的市场需要,随着三维软件、有限元分析软件的逐步完善成熟,采用新思路、新方法、新流程来设计开发新梯成为了可能,。摈除原有设计的弊端,采用ANSYS有限元仿真对电梯结构进行分析与研究,并对电梯结构优化设计。论文的主要研究内容如下:(1)首先对国内外电梯公司对于电梯结构设计的思路及其设计原理进行了探讨,并确立了本课题要研究的内容与方向;(2)针对电梯零部件繁多,结构复杂的特点,采用三维软件proe直接进行三维建模,保证留孔尺寸、定位尺寸的准确性,并可提前发现零部件的装配干涉问题,在早期就进行相应的修改及优化;(3)采用ANSYS workbench对轿架结构进行静力学分析,对应力集中及安全系数偏大的受力部位进行优化及改善;(4)采用ANSYS workbench对轿架结构进行动力学分析,校核轿架刚度及强度,进一步优化轿厢结构设计;本文首先针对实际项目按照传统计算方法对该电梯进行计算,验证整梯的安全性。然后对该电梯的轿架结构做了静力学分析。将其分为5种工况进行校核,归纳结果,对设计冗余过大的上梁重新做了优化设计,降低材料成本,并再次校核,确认可行性。最后对该电梯的轿架整体结构做了动力学分析,考虑了两种工况,在设定了时间、步长、加减速度后,求出综合应力、X向、Y向的变形量,并再次确认其可行性。最终在企业实际生产中得到良好应用,并取得良好的经济效益。
[Abstract]:With the increasing competition in the domestic elevator industry, the whole elevator manufacturer caters to the customer's demand by reducing the cost. The common cost reduction methods used by many companies are structural design optimization and the search for more cost-effective alternatives. Alternative products (mainly standard purchases) need only be replaced by suitable and cost-effective products. However, for structural design optimization, the original classical formula derivation method is far from meeting the existing market demand. In particular, for some structural components and materials with stiffeners (for example, sedan chair frames), the original method of calculation gradually revealed its shortcomings. There is an urgent need to find a new alternative solution. This topic comes from the actual project of a certain elevator company. According to the actual needs of the market and the front line, the development of safe and economically sound elevator varieties has become the top priority of the R & D department. However, the original development ideas and methods have obviously lagged behind the actual market needs. With the gradual improvement of 3D software and finite element analysis software, new ideas and methods are adopted. The new process to design and develop the new ladder has become possible to eliminate the drawbacks of the original design. The ANSYS finite element simulation is used to analyze and study the elevator structure. The main research contents of this paper are as follows: firstly, the ideas and principles of elevator structure design in domestic and foreign elevator companies are discussed. The content and direction of this research are established. Aiming at the characteristics of the elevator with many parts and complicated structure, the 3D modeling is carried out directly by using proe software, which ensures the accuracy of the dimension of the hole and the location. The assembly interference problem of components can be discovered in advance, and the corresponding modification and optimization are carried out in the early stage. The static analysis of the sedan chair structure is carried out by ANSYS workbench. The stress concentration and the stress position of the safety factor are optimized and improved. (4) the dynamic analysis of the sedan chair structure is carried out by ANSYS workbench, the stiffness and strength of the car frame are checked, and the design of the car structure is further optimized. In this paper, the elevator is first calculated according to the traditional calculation method to verify the safety of the whole elevator. Then the statics analysis of the structure of the elevator is made, which is divided into five working conditions to be checked, and the results are summarized. The optimization design of the beam with too much redundancy is redesigned, the material cost is reduced, the material cost is reduced, and the feasibility is rechecked and confirmed. Finally, the dynamic analysis of the overall structure of the car frame of the elevator is made, considering two working conditions, and the time and step are set. After adding and decreasing the velocity, the deformation amount of the comprehensive stress X direction is calculated, and its feasibility is confirmed again. Finally, it is applied well in the actual production of the enterprise, and good economic benefit is obtained.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU857

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