Kinematic Accuracy Method of Mechanisms Based on Tolerance Theories
Joint Authors
Zhang, Li
Wei, Xiaohui
Nie, Hong
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-14
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
Traditional tolerance analysis is mostly restricted to static analysis.
However, tolerances of different components also affect the movement accuracy in a mechanism.
In this paper, the idea of kinematic tolerance analysis is advanced.
In the interest of achieving movement precision considering tolerance, a kinematic Jacobian model is established on the basis of a traditional dimensional chain and an original Jacobian model.
The tolerances of functional element (FE) pairs are expressed as small-displacement screws.
In addition, joint clearances resulting from tolerance design also influence the kinematic accuracy, and they are modeled by FE pairs.
Two examples are presented to illustrate the rationality and the validity of the kinematic tolerance model.
The results of the two examples are shown, and the discussion is presented.
A physical model of the 2D example is also built up in 3DCS software.
Based on the discussion, a comparison between the statistical and physical models is carried out, and the merits and demerits of both are listed.
American Psychological Association (APA)
Zhang, Li& Nie, Hong& Wei, Xiaohui. 2020. Kinematic Accuracy Method of Mechanisms Based on Tolerance Theories. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1195606
Modern Language Association (MLA)
Zhang, Li…[et al.]. Kinematic Accuracy Method of Mechanisms Based on Tolerance Theories. Mathematical Problems in Engineering No. 2020 (2020), pp.1-18.
https://search.emarefa.net/detail/BIM-1195606
American Medical Association (AMA)
Zhang, Li& Nie, Hong& Wei, Xiaohui. Kinematic Accuracy Method of Mechanisms Based on Tolerance Theories. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1195606
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195606