Precise mathematical model for the ratchet tooth root bending stress-Reference-Cited by-同舟云学术

Precise mathematical model for the ratchet tooth root bending stress

Published:2021-12-20 Issue:2 Volume:12 Page:1105-1113
ISSN:2191-916X
Container-title:Mechanical Sciences
language:en
Short-container-title:Mech. Sci.

Author:

Liu Chao,Ding Ning,Duan Jingsong,Zhou Lili,Cui Shanfu,Jiang Shuna,Li Aofei

Abstract

Abstract. A ratchet is an essential component of the ratchet pawl mechanism. But the traditional ratchet strength check method has certain limitations in the design process. In this paper, the stress analysis of the ratchet is discussed and a precision mathematical model for the ratchet tooth root bending stress is proposed for the first time. This model was established by the folded section and defined by the incision effect theory. To test the prediction ability of the proposed mathematical model, the maximum stress of three standard ratchets and one non-standard ratchet were analyzed by the FEA (finite element analysis) method. The non-standard ratchet was adapted in the ratchet experiment to analyze its maximum stress. The analysis results presented in this paper show that the proposed mathematical model has a good predictability, regardless of whether it is a standard or non-standard ratchet. It is recommended that this model can be used to predict the ratchet tooth root bending stress in the ratchet design process.

Funder

Jilin Scientific and Technological Development Program

Publisher

Copernicus GmbH

Subject

Industrial and Manufacturing Engineering,Fluid Flow and Transfer Processes,Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering,Control and Systems Engineering

Link

https://ms.copernicus.org/articles/12/1105/2021/ms-12-1105-2021.pdf

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