Design and simulation of magnetorheological suspension based on spherical motor

doi:10.3969/j.issn.1674-8484.2021.03.007

Abstract

Abstract:

A new type of magnetorheological suspension was designed based on a multi-degree-of-freedom spherical-motor to apply this kind of motor in automobile. The main structure was designed of the magnetorheological suspension with analyzing the static strength of the suspension and magnetic field simulation of the damper using ANSYS software. Obtained a stress nephograph of the suspension and the magnetic induction intensity nephograph of the damper; Established a two-degree-of-freedom dynamic model to simulate ride comfort. The results show that the suspension maximum stress under three working conditions, including the maximum braking force, the maximum vertical force, and the maximum lateral force, does not exceed the material allowable stress of 355 MPa. The vehicle body acceleration is 0.23 m/s²; The tire maximum dynamic load is 2 kN; The suspension maximum dynamic deflection is less than 50 mm. Therefore, the structural design meets both the static strength requirements and the expected suspension ride comfort.

Key words: motor in automobile, spherical motor, magnetorheological suspension, stress nephograph, design, simulation

CLC Number:

U463.33

YANG Yang, DENG Tao, CAO Li, LI Qiang. Design and simulation of magnetorheological suspension based on spherical motor[J]. Journal of Automotive Safety and Energy, 2021, 12(3): 328-335.

Figures/Tables 16

References 15

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弹簧材料直径,d	14 mm
弹簧中径,D	90 mm
工作极限载荷,P_j	7.18 kN
单圈变形量,d_j	13.97 mm
单圈刚度,P_d′	514 N/mm

弹簧材料直径,d	14 mm
弹簧中径,D	90 mm
工作极限载荷,P_j	7.18 kN
单圈变形量,d_j	13.97 mm
单圈刚度,P_d′	514 N/mm

簧载质量,m_s	360 kg
车轮质量,m_u	80 kg
悬架刚度,k_s	42.83 kN/m
车轮刚度,k_t	250 kN/m

簧载质量,m_s	360 kg
车轮质量,m_u	80 kg
悬架刚度,k_s	42.83 kN/m
车轮刚度,k_t	250 kN/m