Analysis method of dynamics and structure optimization for sealing mechanism under reducing vibration condition

Abstract

The paper highlights the importance of optimal design model in the design evaluation of complex sealing mechanism. Sealing mechanism of the high-speed assembly machine is taken as the research object and construct rigid-flexible coupling dynamic equation. Dynamic characteristics of the sealing mechanism are analyzed by MATLAB. The maximum dynamic stress and reducing the acceleration of the end F are regarded as the optimization object. Cam profile curve parameter and the link cross section parameter are designed as the variables to construct the optimization design model of the whole sealing mechanism, and nonlinear constraint problem is transformed into a linear constraint problem. Based on the MATLAB genetic algorithm toolbox, the optimal design model of the sealing mechanism is solved, and the optimal result is obtained.

Keywords

Cam-link system rigid-flexible coupling dynamic characteristics sixth-order spline curve structure optimization

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References

Xueqing

Xuebao

. Aluminum electrolytic capacitor engineering technology, Xiamen: Xiamen University Press, 2007, pp. 31–45.

Bagci

Kalaycioglu

. Elastodynamics of planar mechanisms using planar actual finite line elements, lumped mass systems, matrix-exponential method, and the method of “Critical-Geometry-Kineto-Elasto-Statics” (CGKES). J Mech Des 1979; 101: 417–423.

Midha

Erdman

Frohrib

. Finite element approach to mathematical modeling of high-speed elastic linkages. Mech Mach Theory 1978; 13: 603–618.

Nath

Ghosh

. Kineto-elastodynamic analysis of mechanisms by finite element method. Mech Mach Theory 1980; 15: 179–197.

Nath

Ghosh

. Steady state response of mechanisms with elastic links by finite element methods. Mech Mach Theory 1980; 15: 199–211.

Cleghorn

Fenton

Tabarrok

. Finite element analysis of high-speed flexible mechanisms. Mech Mach Theory 1981; 16: 407–424.

Cleghorn

Fenton

Tabarrok

. Steady-state vibrational response of high-speed flexible mechanisms. Mech Mach Theory 1984; 19: 417–423.

Tuo

Y-F

Cui

M-T

. Strength reliability analysis of stochastic parameter elastic linkage mechanism. Mech Trans 2014; 38: 162–165.

Tuo

Y-F

S-H

. Dynamic analysis and simulation of elastic linkage mechanism. J Mech Des 2016; 33: 35–38.

10.

Volkan

. Finite element dynamic analysis of laminated composite beams under moving loads. Struct Eng Mech 2012; 42: 729–745.

11.

Kulesza

Sawicki

. New finite element modeling approach of a propagating shaft crack. J Appl Mech 2013; 80: 21017–21025.

12.

Nagarajan

Turcic

. General methods of determining stability and critical speeds for elastic mechanism systems. Mech Mach Theory 1990; 25: 209–223.

13.

Nagarajan

Turcic

. Dynamic stability considerations in elastic closed loop linkage systems. J Mech Des 1992; 114: 131–136.

14.

Nagarajan

Turcic

. Experimental verification of critical speed ranges for elastic closed loop linkage systems. J Mech Des 1992; 114: 126–131.

15.

Ceng

Z-X

. CAD modeling and optimization design. J Mech Des 2000; 17: 47–49.

16.

Stolpe

Svanberg

. An alternative interpolation scheme for minimum compliance topology optimization. Struct Multi Opt 2001; 22: 116–124.

17.

Tao

X-Q

J-Z

. Structural optimization design method, Beijing: Tsinghua University Press, 1985, pp. 105–133.

18.

. Active design of a flexible space mechanism with optimal characteristics. Mech Mach Theory 1995; 30: 451–459.

19.

Liu

Wang

Pritschow

. Performance atlases and optimum design of planar 5R symmetrical parallel mechanisms. Mech Mach Theory 2006; 41: 119–144.

20.

Liu

Wang

et al.

Analysis and optimum design of rider-bicycle mechanisms: Design of bicycle parameters for a specified rider. Sci China Technol Sci 2011; 54: 3027–3034.

21.

Sahar

Faiz

Fathi

. An optimum design of cam mechanisms with roller follower for combined effect of impact and high contact loads. J Al-Khawarizmi Eng 2010; 6: 62–71.

22.

Yoo

Han

. Topology optimum design of compliant mechanisms using modified ant colony optimization. J Mech Sci Tech 2015; 29: 3321–3327.

23.

W-J

Liu

J-M

et al.

Optimum design of elastic linkage mechanism with low noise and variable cross section. J Sci Tech Univ 2010; 37: 1445–1448.

24.

Teodorescu

Votsios

Rahnejat

et al.

Jounce and impact in cam-tappet conjunction induced by the elastodynamics of valve train system. Meccanica 2013; 41: 157–171.

25.

Norton

. Cam design and manufacturing handbook, New York: Industrial Press, 2009, pp. 155–183.

26.

Jian

. Displacement calculation method of vehicle powertrain mounting system based on newmark algorithm. J Sci Tech Univ 2011; 41: 59–63.