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Dynamic analysis of elastic screen surface with multiple attached substructures and experimental validation

ISSN号：1003-0794
期刊名称：《煤矿机械》
时间：0
分类：TU352.12[建筑科学—结构工程] TB64[一般工业技术—制冷工程]
作者机构：[1]School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China, [2]Jiangsu Automation Research Institute, Lianyungang 222000, China, [3]Nanjing Design & Research Institute, China Coal Technology & Engineering Group, Nanjing 210031, China
相关基金：Projects（50574091, 50774084） supported by the National Natural Science Foundation of China

作者：王宏[1], 刘初升[1], 彭利平[1], 蒋小伟[2], 冀连权[3]

关键词：实验测试, 弹性筛面, 子结构, 验证, 连接, 动态模型, 加速度幅值, 应用程序, mineral processing, vibrating screen, elastic screen surface, attached substructures, dynamic analysis, reliability, processing efficiency

中文摘要：

与多重依附的基础(ESSMAS ) 经由有弹性的屏幕表面的申请改进可靠性和大颤动的屏幕的处理效率的一个可行方法被建议。在 ESSMAS，与嵌进弹性体的结束，每屏幕杆以一种相对灵活的方式被联合到主要屏幕结构。理论分析被进行，它由建立象为每依附的结构的相等的僵硬计算一样从模糊结构理论提拔的动态模型组成。根据用 NEWMARK- 集成方法的数字模拟，这个集合模式显著地导致在屏幕结构上比相应位置的有更大的颤动紧张的屏幕表面 / 杆，它明确地，与在理论分析增加 11.37% 的比率的一个平均加速振幅并且 20.27% 在里面试验性的测试。在一个容忍的错误以内，试验性的结果也证实确定的模型并且表明 ESSMAS 的可行性。

英文摘要：

A feasible method to improve the reliability and processing efficiency of large vibrating screen via the application of an elastic screen surface with multiple attached substructures （ESSMAS） was proposed. In the ESSMAS, every screen rod, with ends embedded into elastomer, is coupled to the main screen structure in a relatively flexible manner. The theoretical analysis was conducted, which consists of establishing dynamic model promoted from the fuzzy structure theory as well as calculating for the equivalent stiffness of each attached structure. According to the numerical simulation using the NEWMARK-fl integration method, this assembling pattern significantly leads to the screen surface/rod having larger vibration intensity than that of the corresponding position on screen structure, which specifically, with an averaged acceleration amplitude increasing ratio of 11.37% in theoretical analysis and 20.27% in experimental test. The experimental results, within a tolerant error, also confirm the established model and demonstrate the feasibility of ESSMAS.

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