Stress Analytic Computation of Throttle Slice of Telescopic Shock Absorber

2009 ◽  
Author(s):  
Changcheng Zhou ◽  
Jie Meng ◽  
Yuanyi Liu
Keyword(s):  
Shock Absorber ◽  
Analytic Computation

Differential Equation and Analytic Computation of Throttle Slice Deformation under Micro-Circle Pressure

2012 ◽  
Vol 562-564 ◽  
pp. 1146-1149
Author(s):  
Chang Cheng Zhou ◽  
Lei Lei Zhao ◽  
Hong Yan Li
Keyword(s):  
Shock Absorber ◽  
Analytical Formula ◽  
Reference Value ◽  
Deformation Analysis ◽  
Mathematical Transformation ◽  
Analytical Computation ◽  
Tightening Force ◽  
Shock Absorbers ◽  
Mechanics Model ◽  
Analytic Computation

It has been a key problem that the analytical computation of a throttle slice deformation, for the design of shock absorber valves parameters. In this paper, the mechanics model of throttle slice under a spring pre-tightening was simplified into that under a micro-circle pressure. Using boundary and continuity constraints, the general equation for throttle-slice deformation under a micro-circle pressure was given, and by mathematical transformation, an analytical formula was established. With the practical example, the deformation of throttle slices on spring pre-tightening force at any radius was computed, and was testified by ANSYS. It is known that the results computed are close to that simulated, and the deviation is only 6.6 mm. It is shows that the method of deformation analysis of a throttle slice under micro-circle pressure is reliable, which has important reference value for throttle valves parameters design and characteristic simulation of shock absorbers.

Precision Modeling and Deformation Analytic Computation of Throttle Slice of Telescopic Shock Absorber

2012 ◽  
Vol 562-564 ◽  
pp. 1142-1145
Author(s):  
Chang Cheng Zhou ◽  
Hong Yan Li ◽  
Xiao Ting Liu
Keyword(s):  
Simulation Modeling ◽  
Shock Absorber ◽  
Reference Value ◽  
Analytic Formula ◽  
Deformation Analysis ◽  
Slice Thickness ◽  
Uniform Pressure ◽  
Mathematical Transformation ◽  
Relative Deviation ◽  
Analytic Computation

Based on the actual pressure condition of throttle slice of telescopic shock absorber, the general solution of throttle-slice deformation curved surface’s differential equation on a non-uniform pressure, was given, and by mathematical transformation, the deformation analytic formula was established. With the practical example, the deformation of throttle slice on non-uniform pressure at any radius was computed, and was testified by ANSYS, the value computed is close to that simulated, and the relative deviation is only 0.0021%. The results shows that the method of deformation analysis computation of throttle slice on non-uniform pressure is reliable, which has important reference value for throttle slice thickness design and characteristic simulation modeling of shock absorber.

Mathematical modeling of elastoplastic deformation of tubular energy-absorbing elements under static and impact loading

2020 ◽  
pp. 78-82
Author(s):  
A.Р. Evdokimov ◽  
A.N. Gromyiko ◽  
A.A. Mironov
Keyword(s):  
Mathematical Modeling ◽  
Impact Loading ◽  
Elastoplastic Deformation ◽  
Shock Absorber ◽  
Analytical Models ◽  
Dynamic Impact ◽  
Shock Absorbers ◽  
Energy Absorbing ◽  
Absorbing Elements

Analytical models of static and dynamic impact elastoplastic deformation of tubular energy-absorbing elements constituting a tubular plastic shock absorber are proposed. The developed models can be used for the calculation and design of these shock absorbers. Keywords static and dynamic elastoplastic deformation, mathematical modeling, tubular energy-absorbing element, tubular plastic shock absorber, impact loading. [email protected]

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