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The Computer Aided Kinematics and Mechanics Analysis and Kinematic Design of Gear Trains

Author: SunJinFeng
Tutor: RaoJianHua
School: China University of Geosciences
Course: Mechanical and Electronic Engineering
Keywords: Gear Mechanism Motion Analysis Mechanical analysis Motion Design Design Automation Analysis Automation
CLC: TH113
Type: Master's thesis
Year: 2004
Downloads: 155
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Abstract

This paper studies the train mechanism based on a computer-generated motion and force analysis and motion design the basic theory and method. The institutional structure of the gear train, train mechanism kinematic chain structure of the basic unit - the basic structure of the chain and the basic structure of the complementary strand, any gear train kinematic chain can be broken down into basic gear train unit kinematic chain an ordered set of basic structure of the chain and the basic structure of the complement chain, train mechanism structural decomposition; corresponding so, can be obtained through the use of the basic structure of the chain and lower gear train mechanism corresponds to the basic structure of the complement chain and operations, higher class train mechanism to achieve the type of institution with the design of the gear train. In this paper, train mechanism parent array of three-color tree leaves in an even, leaves even the parent array and train mechanism loop matrix to digital expression Gear Mechanism structure to achieve the automatic identification of the institutional structure of the gear train, wheel Department of institutional computer analysis and design information. Composition in accordance with the institutions of the gear train, the use of the relative motion between the components, the establishment of a the Gear Mechanism basic circuit unit motion analysis equation, by train mechanism loop unit group constructed wheel kinematic analysis of mathematical models. Gear Mechanism member and deputy campaign force characteristics analysis, the use of kinetic analysis method, derived Gear Mechanism any motion member of the force balance equation, and the combined force of the train mechanism deputy campaign relationship get a unified mathematical model of the mechanical analysis of the train mechanism. Requirements to start from the train mechanism engages properly analyzed the general train mechanism during the movement should be designed to meet the constraints, and gives the basic constraints and institutional structure of the relationship of the gear train, the constraints automatically compatible with the equation constructed set of information, the use of this information collection to construct a mathematical model designed by the movement of the gear train. Using the above theory, as a tool MATLAB6.5, the use of object-oriented programming method, the preparation of a gear train mechanism motion and force analysis and motion design software. Performing the wheel train mechanism motion analysis, the software can be any member of the rotational speed of the size of the wheel train mechanism; force making the wheel train mechanism analysis, not only the output torque can be obtained, but can be different in the actual movement of the train wheel force components in different time deputy campaign; during the design of the gear train mechanism motion, you can get multiple design results for the designer to choose, to achieve the optimization of the Gear Mechanism Teeth optional. The software set Gear Mechanism Analysis and design in one analysis and design at the same time, the results of the design can use the analysis module the movement mechanics analysis, the results of the analysis can test the pros and cons of the design results, Gear Mechanism Analysis complementary with the design module, the basic realization of the gear train mechanism analysis and design automation and visualization, is conducive to the innovative design of the train mechanism.

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