动力稳定装置-轨道系统横向动力学响应分析

doi:10.16180/j.cnki.issn1007-7820.2019.08.002

Abstract

Abstract:

The dynamic response discipline of the sleeper and the selection of the optimal operating parameters were studied for the track dynamic stabilizer under different track conditions. A lateral dynamics model of the dynamic stabilize unit-track system was established. The dynamic model was simulated by MATLAB software combined with numerical integration method. The dynamic response law of the sleeper and the optimal excitation frequency of the dynamic stabilize unit were obtained when the track dynamic stabilizer was under different track conditions. The research results showed that in the same excitation frequency range, with the increase of lateral stiffness and damping of the ballast bed, the average lateral dynamic response of the sleeper became smaller. Meanwhile, the optimal excitation frequency was 31~33 Hz for the track bed conditions studied in this paper.

Key words: multi-body dynamics, dynamic stabilize unit, numerical integration, lateral resistance, track dynamic stabilizer, ballasted track

CLC Number:

TP202

XIANG Yongzhi,WANG Lihua,LI Xianzeng,WANG Tong. Analysis of Lateral Dynamic Response for Dynamic Stabilize unit-Track System[J].Electronic Science and Technology, 2019, 32(8): 7-11.

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References 16

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参数	数值	参数	数值
m₁/kg	3 500	k₃/N·m^-1	1.47×108
m₂/kg	3 600	c₃/N·s·m^-1	2.85×105
m₃/kg	1 600	ω/Hz	0~45
k₂/N·m^-1	5.56×10⁷	M_e/kg·m	4

道床工况	横向刚度k₆/N·m	横向阻尼c₆/N·s·m^-1
工况一	1×10⁸	8×10⁴
工况二	1.1×10⁸	8.8×10⁴
工况三	1.2×10⁸	9.6×10⁴
工况四	1.3×10⁸	1.04×10⁵

Analysis of Lateral Dynamic Response for Dynamic Stabilize unit-Track System

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