基于DELMIA的航空发动机转子的虚拟装配

发布时间：2018-06-08 11:15

本文选题：航空发动机转子 + 虚拟装配　；参考：《西安工业大学》2016年硕士论文

【摘要】：航空发动机装配不仅工作量大、协作困难,而且质量要求高,在航空发动机制造过程中占有重要的地位。如何提高航空发动机装配技术的水平成为航空发动机研制过程中迫切需要解决的问题之一。作为数字化设计与制造中的一个新兴的研究方向,虚拟装配技术为提高航空发动机装配技术水平,对缩短产品的制造周期,提高产品的质量有非常重要的作用,在航空发动机设计和制造过程中具有重大的意义。本文分析并总结了虚拟装配技术理论,根据航空发动机装配特点,对某航空发动机转子的虚拟装配过程的仿真进行了探索研究,主要内容如下：1)对现有虚拟装配理论基础和虚拟装配系统的关键技术进行了分析与讨论,在总结分析以往装配序列规划技术的基础上,提出了基于层次联接关系图的分层装配序列割集法。2)本文提出利用层次化割集法求解航空发动机转子的装配序列,即先将装配关系树、联接关系图进行分层,然后利用割集法求出装配体的层次与或图,计算层次装配序列,使得求解过程中产生的装配序列数量减少,从而解决了由于计算量过大导致的装配序列爆炸问题。3)在DELMIA环境中对航空发动机转子进行了虚拟装配过程仿真。首先,基于装配过程拆装可逆的假设,运用拆卸法对装配序列进行优化,从而得出了合理的装配序列；然后,利用DELMIA的DPM模块实现航空发动机转子虚拟装配三维动态仿真,并同步实施干涉检查。本文以某航空发动机转子为研究对象,最终求出了航空发动机转子合理的装配序列,生成了有指导性的航空发动机转子的装配仿真录像,对于航空发动机转子装配工艺的提高有指导意义。
[Abstract]:The assembly of aero-engine is not only hard to cooperate, but also needs high quality. It plays an important role in the manufacture of aeroengine. How to improve the level of aero-engine assembly technology has become one of the urgent problems to be solved in the process of aeroengine development. As a new research direction in digital design and manufacture, virtual assembly technology plays an important role in improving aero-engine assembly technology, shortening manufacturing cycle and improving product quality. It is of great significance in the design and manufacture of aeroengine. In this paper, the theory of virtual assembly technology is analyzed and summarized. According to the characteristics of aero-engine assembly, the simulation of the virtual assembly process of an aeroengine rotor is studied. The main contents are as follows: (1) the basic theory of virtual assembly and the key technologies of virtual assembly system are analyzed and discussed. In this paper, a hierarchical assembly sequence cut set method based on hierarchical connection relation graph is proposed. In this paper, the hierarchical cut set method is proposed to solve the assembly sequence of aero-engine rotor, that is, the assembly relation tree and the connection relation graph are first stratified. Then, the hierarchy and or graph of assembly body is obtained by cutting set method, and the hierarchical assembly sequence is calculated, which reduces the number of assembly sequences produced in the process of solution. Thus, the problem of assembly sequence explosion caused by too much computation is solved. The virtual assembly process of aero-engine rotor is simulated in Delmia environment. Firstly, based on the assumption that assembly process is reversible, the assembly sequence is optimized by disassembly method, and the reasonable assembly sequence is obtained. Then, the 3D dynamic simulation of aero-engine rotor virtual assembly is realized by using DPM module of DELMIA. The interference inspection was carried out simultaneously. In this paper, a certain aero-engine rotor is taken as the research object. Finally, the reasonable assembly sequence of the aeroengine rotor is obtained, and a instructive simulation video of the aero-engine rotor assembly is generated. It is of guiding significance for improving the assembly process of aero-engine rotor.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V263.2

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