Calculation method of silicone oil torsional vibration damper housing stiffness

The torsional stiffness of the silicone oil shock absorber housing is calculated by theoretical derivation, which solves the problem of complex calculation in the existing technology, realizes fast and accurate calculation of the stiffness of the silicone oil shock absorber housing, and is suitable for programming optimization.

CN119538433BActive Publication Date: 2025-09-19HUBEI AUSTRIAN ABSORBER MFG +1
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Patent Information

Application Number
CN202411535883.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-19
Estimated Expiration
2044-10-31

AI Technical Summary

Technical Problem

The existing technology cannot quickly calculate the stiffness of the silicone oil shock absorber housing. The finite element analysis method is complex and inconvenient for programming and calculation, and cannot be applied to the silicone oil shock absorber housing.

Method used

Through theoretical derivation, considering the installation method of the silicone oil shock absorber, the damping force distribution on the inner wall of the shell and the material, the viscous shear stress is calculated in different regions, and the mathematical relationship between the torsional deformation angle and torsional stiffness of the silicone oil shock absorber shell is derived.

Benefits of technology

A method for quickly calculating the stiffness of a silicone oil vibration damper housing is provided. The method has high calculation speed and is suitable for programming optimization. The results are slightly different from those of the finite element analysis method and are applicable to silicone oil torsional vibration dampers of various sizes.

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Abstract

The present invention discloses a method for calculating the stiffness of a silicone oil torsional vibration damper housing, and the specific steps are as follows: S1. Assume that the space between the shock absorber housing and the shock absorber inertia ring is filled with a fluid with a viscosity of , and rotates at a constant relative angular velocity. According to Newton's viscosity law, the viscous shear stress at the shock absorber housing radius of is: and the viscous shear stress formulas of the five regions are obtained; S2. When the shock absorber is working, according to the viscous shear stress formulas of the five regions, the torque diagrams of the five regions of the housing can be drawn, from the outer ring ⑤ → the right side wall ④ of the annular ring → the left side wall ③ → the inner ring ② → the right side wall ① of the center hole. By deducing the value of the torque, it can be known that the torsional amplitude of the upper left corner of the shock absorber housing is the largest; the shock absorber housing stiffness is calculated by the formula. The silicone oil torsional vibration damper housing stiffness calculation method of the present invention can adapt to a variety of silicone oil torsional vibration damper sizes, does not require finite element analysis to obtain the housing torsional stiffness, is suitable for programming calculation, and the calculation result differs from the finite element method calculation by about 2%.
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