Tolerance Analysis of Over-Constrained Assembly Considering Gravity Influence: Constraints of Multiple Planar Hole-Pin-Hole Pairs
Joint Authors
Liu, Xia
An, Luling
Wang, Zhiguo
Tan, Changbai
Wang, Xiaoping
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-14
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
Over-constrained assembly of rigid parts is widely adopted in aircraft assembly to yield higher stiffness and accuracy of assembly.
Unfortunately, the quantitative tolerance analysis of over-constrained assembly is challenging, subject to the coupling effect of geometrical and physical factors.
Especially, gravity will affect the geometrical gaps in mechanical joints between different parts, and thus influence the deviations of assembled product.
In the existing studies, the influence of gravity is not considered in the tolerance analysis of over-constrained assembly.
This paper proposes a novel tolerance analysis method for over-constrained assembly of rigid parts, considering the gravity influence.
This method is applied to a typical over-constrained assembly with constraints of multiple planar hole-pin-hole pairs.
This type of constraints is non-linear, which makes the tolerance analysis more challenging.
Firstly, the deviation propagation analysis of an over-constrained assembly is conducted.
The feasibility of assembly is predicted, and for a feasible assembly, the assembly deviations are determined with the principle of minimum potential energy.
Then, the statistical tolerance analysis is performed.
The probabilities of assembly feasibility and quality feasibility are computed, and the distribution of assembly deviations is estimated.
Two case studies are presented to show the applicability of the proposed method.
American Psychological Association (APA)
Liu, Xia& An, Luling& Wang, Zhiguo& Tan, Changbai& Wang, Xiaoping. 2018. Tolerance Analysis of Over-Constrained Assembly Considering Gravity Influence: Constraints of Multiple Planar Hole-Pin-Hole Pairs. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-18.
https://search.emarefa.net/detail/BIM-1206007
Modern Language Association (MLA)
Liu, Xia…[et al.]. Tolerance Analysis of Over-Constrained Assembly Considering Gravity Influence: Constraints of Multiple Planar Hole-Pin-Hole Pairs. Mathematical Problems in Engineering No. 2018 (2018), pp.1-18.
https://search.emarefa.net/detail/BIM-1206007
American Medical Association (AMA)
Liu, Xia& An, Luling& Wang, Zhiguo& Tan, Changbai& Wang, Xiaoping. Tolerance Analysis of Over-Constrained Assembly Considering Gravity Influence: Constraints of Multiple Planar Hole-Pin-Hole Pairs. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-18.
https://search.emarefa.net/detail/BIM-1206007
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1206007