大功率风电制动器制动稳定性研究

发布时间：2018-04-19 17:52

本文选题：风电制动器 + 刚柔耦合多体动力学　；参考：《中国工程机械学报》2017年05期

【摘要】：风电制动器是大功率风力发电机组制动系统中不可或缺的配套装置,其制动稳定性直接影响到风机制动系统的正常运行.基于风电制动器刚柔耦合动力学模型,仿真分析了不同初始制动转速、制动力、制动盘-闸片摩擦系数下大功率风电制动器的振动特性.根据影响振动的两个主要因素——加速度变化率和振动动能,得出风电制动器制动稳定性判定方法,并利用该方法对制动器制动稳定性进行了研究.通过风电制动器惯性试验台的试验结果,验证了所建立的风电制动器刚柔耦合模型的准确性,进而间接验证了制动稳定性判定结果的准确性.该研究为大功率风电制动器设计、制动参数匹配优化及制动可靠性分析提供参考.
[Abstract]:Wind power brake is an indispensable supporting device in high power wind turbine braking system, and its braking stability directly affects the normal operation of fan braking system.Based on the rigid-flexible coupling dynamic model of wind power brake, the vibration characteristics of high power wind power brake with different initial braking speed, braking force and friction coefficient between brake disc and brake disc are simulated and analyzed.According to the two main factors affecting vibration, acceleration change rate and vibration kinetic energy, the method of judging braking stability of wind power brake is obtained, and the braking stability of wind power brake is studied by using this method.The accuracy of the rigid-flexible coupling model of the wind power brake is verified by the test results of the inertia test rig of the wind power brake, and the accuracy of the judging result of the braking stability is indirectly verified.The research provides a reference for the design of high power wind power brake, the optimization of braking parameters and the analysis of braking reliability.
【作者单位】：大连交通大学机械工程学院;
【基金】：国家自然科学基金资助项目(51675075,51475066) 辽宁省自然科学基金资助项目(2015020114)
【分类号】：TM315

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