Analytical and experimental study on the axial stiffness of multiple corrugated diaphragm coupling based on the corrugated circular plate theory

Abstract

Compared to traditional couplings, the multiple corrugated diaphragm (MCD) coupling has the advantages of high torque diameter and weight ratios, and high compensation capability. Due to the irregularity of the MCD, it is difficult to analyze and study it through traditional methods. In this paper, an analytical method for calculating the axial stiffness of MCDs is derived based on the mechanical theory of corrugated circular plates, and the results of the analytical method, finite element method, and stiffness tests are compared. The results indicate that the analytical solution of the MCD axial stiffness is consistent with the finite element analysis and experimental results. This proves the feasibility of analyzing the MCDs using the theory of corrugated annular plates. This study provides a theoretical basis for the design of MCD coupling and can guide the rapid design of MCD coupling.

Keywords

Corrugated circular plate diaphragm coupling axial stiffness analytical method finite element method experimental verification

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References

Angang

Chunhua

Wei

, et al. Study on optimization of waveform diaphragm molded lines. J Eng Therm Energy Power 2019; 34: 120–124.

Angang

Shan

Chunhua

, et al. Design and optimization of transition fillet for waveform diaphragm. Ship Sci Technol 2018; 40: 139–142.

Angang

Lifeng

Xinxin

Torsional stiffness of waveform diaphragm with sinusoidal molded lines on the basis of membrane theory. J Eng Therm Energy Power 2020; 35: 158--164.

Mancuso

JR.

Flexible couplings for gas turbine applications. In: Proceedings of the ASME 1989 international gas turbine and aeroengine congress and exposition, Toronto, Ontario, Canada, 4--8 June 1989.

Feng

Geng

Zhang

, et al. Axial stiffness of a rotating trunnion joint. Proc IMechE, Part C: J Mechanical Engineering Science 2014; 229: 2846–2853.

Duong

Kazerounian

Design improvement of the mechanical coupling diaphragms for aerospace applications. Mech Based Des Struct Mach 2007; 35: 467–479.

Junfeng

Minli

Guang-Bin

, et al. Comprehensive stiffness simulation of diaphragm coupling. J Comput Theor Nanosci 2016; 13: 6108–6114.

Jingming

Bing

Analysis of the influence of the diaphragm coupling structure on its torsional stiffness. Mech Eng Autom 2016; 2: 81--85.

Zhonghou

Jing

, et al. The study on the static stiffness of large diaphragm-rubber coupling. J Mech Transm 2016; 1: 32--35.

10.

Pinggui

Rupeng

Strain and model analysis on diaphragm of diaphragm coupling based on ANSYS

. Mech Eng 2008; 1: 124--125.

11.

Wenpin

Yongming

Performance analysis of the axial stiffness of diaphragm coupling. Ship Eng 2010; 32: 33–36.

12.

Guoping

Jianmin

Research on axial vibration characteristics of metal diaphragm couplings. Aeroengine 2017; 43: 14–18.

13.

Zheng

Strength and life analysis and structural improvement of flexible coupling with compound spiral tube. Master’s Thesis, Nanjing University of Aeronautics and Astronautics, China, 2011.

14.

Xiuming

Structure analysis and optimization of marine corrugated diaphragm coupling. Master’s Thesis, Harbin Engineering University, China, 2018.

15.

Fuqing

Shuai

Emendations of secondly main stiffen formula for the sine corrugugated plate. J Mech Strength 2010; 32: 152–155.

16.

The static analysis of a diaphragm coupling with joint bearing. In: International conference on mechanics and materials science (MMS), Guangzhou, China, 15–16 October 2016, pp.1125–1134. Taiwan, China: Mechanics and Materials Science.

17.

Yunyun

Xiuxi

Nonlinear bending of corrugated annular plates under axisymmetric arbitrary loads. Chin J Appl Mech 1989; 1: 35--43.

18.

Feng

Yang

Tian

, et al. A theoretical solution of the axial stiffness of a cylindrical shell with a circular plate. Proc IMechE, Part C: J Mechanical Engineering Science. Epub ahead of print 2020. DOI: 10.1177/0954406220959380.

19.

Renhuai

Principle for designing elastic elements in Precision-Instruments manufacture. vol 4. Guangzhou, China: Jinan University Press, 2006, pp.99–132.

20.

Lin

Chen

YH.

Linear and nonlinear frequency analyses for the rotating diaphragm of the coupling. Mech Based Des Struct Mach 2020. Epub ahead of print. DOI: 10.1080/15397734.2020.1822179.