【作者】 王乾；

【导师】 贾瑞清；

【作者基本信息】 中国矿业大学（北京） ， 机械电子工程， 2011， 博士

【摘要】 本文主要从连续性流动介质的角度出发,以欧拉法讨论了料仓贮存中物料的流动特性及料拱的成因,提出了连续强迫非对称流的观点。重点研究基于双质体振动的主动活化料仓物料理论和系统组成,主要包括：基于双质体亚共振的振动激励源、影响物料流动和结拱的大尺寸卸料口以及对料拱形成和料仓内部物料压力有影响的减压梁。并根据对各相关部件所作的动力学分析和理论计算结果,设计了振动活化料仓物料的实验平台。结合各理论计算和动力学分析的结果,利用工程计算和仿真软件MATLAB中Simulink对整个系统做了动态仿真,并且进一步制造相关部件和搭建起实验平台。根据实验理论、实验目的和实验意义设定了实验方法和程序,并按要求和规则进行了空载和负载实验,对实验结果进行的测试分析验证了理论研究的一些结论和计算结果,并得到了无法进行理论分析的一些经验值和规律。本文的理论研究和实验研究结果将对我国振动活化物料相关技术提供理论依据和设计指导。更多还原

【Abstract】 This paper mainly discusses flow characteristics of the material stored in bunker and material arch formation causes from the angle of continuous flow of media, proposes the idea of continuously forced asymmetric flow, and focuses on theory and system composition of initiative activating material in bunker based on two mass vibration. The system composition includes the vibration excited source based on two mass sub-resonance, the large size discharge port influencing material flow and arch and decompressing beam affecting material pressure in bunker. According to results of dynamic analysis and theory calculation of related components, the experiment platform of activating material in bunker with vibration is designed. Combining results of theoretical calculation and dynamic analysis, this paper makes dynamic simulation to the whole system with Simulink, further produces related components and builds experiment platform. In the light of theory purpose, significance of the theory, purpose and significance of the experiments, this paper designs methods and procedures of the experiment and proceeds no-load and load experiments under requirements and rules. The experimental results has been tested and analyzed, and certain conclusions and calculated results of theoretical research has been approved, therefore acquiring some experience value and regulations that can’t be analyzed by theory. The theoretical and experimental research results of this paper provide the theoretical basis and guidelines to related technology of vibration activating material in our country.更多还原