CAJ | 학술논문

采用高精度高速连续测量测力轮对是高速铁路联调联试、安全评估、轮轨关系及系统动力学仿真研究的重要技术手段.本文系统地论述高速测力轮对的基本原理以及基于综合误差最小化的设计方法、基于可靠性的制造工艺、基于精度的动静态标定等关键技术,介绍其在0号高速综合检测列车上的应用情况.结果表明,运用该技术的高速测力轮对,可在复杂运用条件下连续得到包括垂向力、横向力、纵向力及轮轨接触位置在内的完整的轮轨作用力学参数,为轮轨动态作用的深入研究创造条件.本文还就如何利用测力轮对改进高速铁路轮轨系统动力学仿真技术进行探讨.
채용고정도고속련속측량측력륜대시고속철로련조련시、안전평고、륜궤관계급계통동역학방진연구적중요기술수단.본문계통지논술고속측력륜대적기본원리이급기우종합오차최소화적설계방법、기우가고성적제조공예、기우정도적동정태표정등관건기술,개소기재0호고속종합검측열차상적응용정황.결과표명,운용해기술적고속측력륜대,가재복잡운용조건하련속득도포괄수향력、횡향력、종향력급륜궤접촉위치재내적완정적륜궤작용역학삼수,위륜궤동태작용적심입연구창조조건.본문환취여하이용측력륜대개진고속철로륜궤계통동역학방진기술진행탐토.
The instrumented wheelset under high-precision, high-speed and continuous measurement is the important technical means to conduct associated system tests, safety evaluation and simulation of rail-wheel relationship and system dynamics of high speed railways. In the recent years, lots of researches have been carried out into instrumented wheelsets in China and the core of the technical advancement has been achieved. In this paper, the basic principle, design methodology, manufacturing technology and static and dynamic calibration of the instrumented wheelset are expounded, and the actual application conditions of the instrumented wheelset installed on Number 0 high-speed comprehensive-inspection train are introduced, where high-precision continuous measurement of wheel-rail dynamic forces under high-speed rotation of wheelsets are made. The results show that the instrumented wheelset inspection can gain the complete set of wheel-rail interacting forces including the vertical, lateral, longitudinal and wheel-rail contact forces, thus creating conditions for further study and application of dynamic wheel-rail forces with high detecting precision, reliable data transmission and steady performance. How to use the instrumented wheelset to simulate wheel-rail dynamics of high-speed railways is also discussed.