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Structure Analysis and Optimization of a Reducer

Author: LiJin
Tutor: LiDaoKui
School: National University of Defense Science and Technology
Course: Mechanics
Keywords: Ball screw reducer Structural Analysis Parametric modeling PCL language Structural optimization design
CLC: TH132.46
Type: Master's thesis
Year: 2011
Downloads: 39
Quote: 0
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Abstract


Reducer is an important component of the electric steering gear , its main role is the high-speed rotation of the motor into a low-speed missile rudder deflection . With the continuous improvement of the missile weapon system performance , speed reducer presented miniaturization trend of the development of lightweight , while its mechanical environment in which worse . Therefore, the the reducer for structural analysis and optimization design of engineering significance . In this paper, based on a ball screw reducer , structural analysis , and modeling parameters , using genetic algorithm structural optimization design of the reducer . The main research contents are as follows : the establishment of a three-dimensional finite element model of a ball screw reducer accurately simulate a variety of connection relations between the parts , using the finite element software MSC.Marc / Nastran nonlinear ball screw reducer static analysis and dynamic analysis . MSC.Patran software secondary development tools PCL (Patran Command Language) Reducer parametric modeling technology , the preparation of a ball screw reducer PCL parametric modeling program , based on geometric the parameters automatically create a finite element model and analytical calculations and results output function . Discussed the basic realization of the genetic algorithm , using the established parametric model using genetic algorithms to the quality of the optimization of the shape and size of the gear unit minimum target . In short, we successfully achieved based on parametric modeling of the structure of a ball screw reducer optimization results provide a reference for the design of the reducer , research methods can be easily applied to the shape and size of a similar complex structure The optimal design .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanical parts and gear > The transmission mechanism > Meshing > Reducer and transmission
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