冲击载荷下行星减速器箱体柔性连接的设计及优化

发布时间：2018-01-14 00:09

本文关键词：冲击载荷下行星减速器箱体柔性连接的设计及优化　出处：《湘潭大学》2012年硕士论文　论文类型：学位论文

【摘要】：本论文主要对行星减速器箱体柔性连接进行研究，建立了其在冲击载荷下的力学模型，以XE-93偏航减速器为例验证了力学模型的正确性。工程中由于箱体柔性连接设计不合理，在冲击载荷作用下箱体柔性连接未能起到较好的缓冲作用，减速器破坏的可能性大。所以很有必要对减速器箱体柔性连接进行研究和优化。本论文主要研究内容如下：（1）对箱体柔性连接作了较详细的研究，得到在冲击载荷作用下箱体柔性连接各部件应力分布情况及破坏形式；（2）在受力分析基础上利用力学理论得到了高强度螺栓、弹性销数量，行星轮系模数和冲击载荷之间的力学关系式，建立了行星减速器箱体柔性连接力学模型；（3）在力学模型的基础上，，运用优化设计理论，利用MATLAB软件中的优化工具箱函数Fmincon进行迭代计算，得到了较为理想的优化结果，建立了行星减速器箱体柔性连接优化模型；（4）利用有限元软件ABAQUS建立了XE-93偏航减速器第四级箱体连接简化有限元模型，经过计算分析验证了所项目中设计的XE-93偏航减速器箱体柔性连接设计参数不合理，柔性连接起不到较好的缓冲作用，和理论推导结果吻合；（5）为验证优化结果，本论文根据优化设计结果建立了箱体柔性连接有限元模型，通过计算分析证明了行星减速器箱体柔性连接优化模型的正确性，提高了其抵抗冲击载荷的能力，进一步验证了行星减速器箱体柔性连接力学模型的正确性。给减速器箱体柔性连接设计提供了一个较理想的思路。
[Abstract]:In this paper, the flexible connection of planetary reducer box is studied, and its mechanical model under impact load is established. Taking the XE-93 yaw reducer as an example, the correctness of the mechanical model is verified. Due to the unreasonable design of the flexible connection of the box body in engineering, the flexible connection of the box body under the impact load can not play a better role in buffering. So it is necessary to study and optimize the flexible connection of reducer box. The main contents of this thesis are as follows: 1) the flexible connection of the box is studied in detail, and the stress distribution and failure form of the flexible connection are obtained under the impact load. On the basis of mechanical analysis, the mechanical relations between high strength bolt, elastic pin number, planetary gear train modulus and impact load are obtained by means of mechanical theory. The mechanical model of flexible connection of planetary reducer box is established. 3) on the basis of the mechanical model, the optimal design theory is used, and the optimization toolbox function Fmincon in MATLAB software is used for iterative calculation, and the more ideal optimization results are obtained. The optimization model of flexible connection of planetary reducer box is established. 4) the simplified finite element model of the connection of the fourth stage box of XE-93 yaw reducer is established by using the finite element software ABAQUS. Through calculation and analysis, it is verified that the design parameters of the flexible connection of the XE-93 yaw reducer box are unreasonable, and the flexible connection does not play a better role in buffering, which is consistent with the theoretical results. In order to verify the optimization results, the finite element model of flexible connection of the box body is established according to the results of the optimization design, and the correctness of the flexible connection optimization model of the planetary reducer box is proved by calculation and analysis. The ability of resisting impact load is improved, and the correctness of the mechanical model of flexible connection of planetary reducer box is further verified, which provides an ideal idea for the design of flexible connection of reducer box.
【学位授予单位】：湘潭大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.46

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