Acta Armamentarii

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Design of a Full-Length Effective Automotive Magnetorheological Damper with magnetically Conductive Ring of Trapezoidal Cross Section

WUHuan;LIYinong;ZHANGZhida;ZHANGZiwei;PUHuayan;LUOJun

Acta Armamentarii, 2023, 44(1): 61-73. DOI: 10.12382/bgxb.2021.0731

参数	新型全通道有效MRD	普通MRD	带弯曲磁路的MRD
缸筒外径/mm	42	45.8	66
电源激励/安匝	150	150	150
最大输出阻尼力/N	1395	743	1351

Table 3 Comparison of damping characteristics

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Fig.5 Diagram of magnetic field line distribution
Fig.7 Diagram of magnetic field intensity distribution
Fig.8 Comparison of magnetic induction intensity at magnetically conductive ring of the full-length effective MRD
Fig.9 Comparison of magnetic field intensity at the damping channel of the five types of MRD
Table 2 Mean magnetic field intensity at the damping channel of the five types of MRD
Fig.10 Machining and assembly drawings
Fig.11 Test equipment of damping characteristics
Fig.12 Damping characteristic curve at peak speed 0.1m/s
Fig.13 Damping characteristic curve at peak speed 0.3m/s
Fig.14 Damping characteristic curve at peak speed 0.6m/s
Fig.1 Diagram of Full-length effective MRD structure with magnetically conductive ring of trapezoidal cross section
Fig.2 Sectional view of the piston structure of the new full-length effective MRD
Fig.3 Sketch of piston section
Fig.4 Diagram of conventional MRD’s piston section
Fig.6 Diagram of magnetic induction intensity distribution
Fig.15 Two-degree-of-freedom 1/4 vehicle model
Table 4 Parameters of vehicle model
Fig.16 Time domain response of sprung mass acceleration
Fig.17 Time domain response of tire dynamic deformation
Table 5 Root mean square value of vibration damping performance indicator
Fig.18 Frequency domain response of sprung mass acceleration
Fig.19 Frequency domain response of tire dynamic deformation
Table 1 Dimensions of the new full-length effective MRD’s pistonmm

模态框（Modal）标题

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