| DESIGN AND PERFORMANCE ANALYSIS OF A NEW LIGHTWEIGHT
ROTOR ADAPTIVE ELECTROMAGNETIC SHOCK ABSORBER FOR
ARMORED VEHICLES |
| Tong Zhao 1, Desheng Li 1, Lezhi Ye 1, Benzhen Guo 1, Zequn Li 1, Tongxin Ma 2 |
1Faculty of Materials and Manufacturing, Beijing University of Technology
2Propulsion System Technologies, North Vehicle Research Institute |
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| ABSTRACT |
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In order to solve the problem of the large moment of inertia of the existing rotating electromagnetic shock
absorber for armored vehicles, a new lightweight rotor adaptive electromagnetic shock absorber (LR-AESA) is proposed in
this paper. The LR-AESA consists of the left and right symmetrically distributed stators, a rotor in the middle and excitation
coils. Secondly, based on the equivalent magnetic circuit method (EMC) and the Ampere loop theorem, and the interaction of
the reaction magnetic fields between adjacent eddy current rings and the nonlinear effect of the interaction between the eddy
current field and the original magnetic field are further considered, the air gap magnetic field distribution of the LR-AESA of
the 10# steel rotor and the copper rotor at different speeds is derived, and the analytical expression of the damping torque is
obtained. Finally, the validity of the analytical model was verified by comparison with results from the 3-D finite element
method (FEM). The results show that the LR-AESA of the two material rotors can meet the requirements of technical
indicators, but in the full speed section (200 ~ 2000 rpm), the copper rotor has the advantage of a wider range of the damping
torque adjustment. |
| Key Words:
Armored vehicle, Adaptive electromagnetic shock absorber, Eddy current, Magnetic field distribution,
Transverse magnetic flux |
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Corresponding Author.
Desheng Li , Email. 
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