The Rigid Analysis of Linear Guide
| Autor: | Yi-Xing Yang, 楊宜興 |
|---|---|
| Rok vydání: | 2013 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 101 Modern industrial automation requires high-speed and high-precision and low energy consumption performance. Linear guide is an important component to achieve the purpose. Linear guide has a lot of features like compact structure, small dynamic friction coefficient, large carrying capacity, easy installation, high positioning accuracy and smooth transmission. The linear guide as an industrial automation supporting member, digital control machine tools get more widely. The rigid of the linear guide is a pivotal property to the accuracy. Therefore, through this research which analyzes and verifies the rigid of linear guide, we can improve its performance which is significant. Observing the stiffness changing of the linear guide which endure static load is the topic of the research. There are six types of commercial linear guide which will be discussed in this research We will interact evidence in three aspects, theoretical analysis, finite element simulation, experiment. Details are as follows: First, according to the structural characteristics of the linear guide and its mechanical state. We will simplify the model of the problem and analyze the contact condition of the ball between roller and slide by using Hertz contact theory. Driving the relationship of the load and relative displacement between roller and slide. Second, using the finite element software, Abaqus, to simulate this problem. Third, verifying the above results by experiment. Reference to theoretical solutions and finite element simulation''s results. Designing an appropriate measuring tools and using material test systems to apply load on the linear guide. Measuring the relative displacement of the roller and the slide. We will interact evidence in three aspects, theoretical analysis, finite element simulation, experiment. Unit now, theoretical solutions and finite element simulation solutions has been confirmed. The difference between theoretical solutions and finite element simulations are less than 6%. We can estimate the correction about assumption of theoretical derivation by comparing finite element simulation''s data. Furthermore, according to the experiment data, we can estimate if aforementioned data was reasonable. Finally, establishing the credibility of the three data. We can only use theoretical solutions to accurately estimate the rigidity of the linear guide, and reduce the cost on the simulation and experiments |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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