Analytical Calculation Method for Optimum Damping Ratio of Seat Mounts in High Speed Rail Vehicles
A technology for optimal damping ratio and vehicle seats, applied in calculation, instrumentation, electrical digital data processing, etc., can solve problems such as analytical calculation methods without a given system, dynamic analysis and calculation difficulties, and unsatisfactory problems
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[0061] The present invention will be further described in detail through an embodiment below.
[0062] The unloaded mass of a 1 / 4 single-section car body of a high-speed rail vehicle m 2 =14398kg, half of the mass of a single bogie frame m 1 =1379kg, 1 / 4 sum of mass of passengers in a single car m 3 =1593.8kg; The vertical equivalent stiffness K of the primary suspension 1 =2.74×10 6 N / m, vertical equivalent damping C 1 =28.3kN.s / m; the equivalent stiffness K of the end connection of the primary vertical shock absorber d1 =40×10 6 N / m; Vertical stiffness K of the secondary mount 2 =568.4kN / m, vertical damping C 2 =59.4kN.s / m; End connection stiffness K of the secondary vertical shock absorber d2 =20×10 6 N / m; vertical equivalent stiffness of seat suspension K 3 =566.27kN / m; the damping ratio of the seat suspension to be designed is ξ, where the equivalent damping coefficient of the seat suspension shock absorber The optimal da...
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