论文部分内容阅读
在简要阐述了复杂煤层赋存条件下,在薄煤层采煤机械动态可靠性分析的技术难点、目标和要求的基础上,重点介绍了基于多体动力学理论的多软件协同仿真技术在薄煤层采煤机械的动态可靠性分析中的应用,主要包括:基于截齿与刨刀的力学模型,开发了采煤机和刨煤机载荷计算软件,解决了不同煤层赋存条件和工况下的采煤机械载荷计算问题;介绍了多体动力学理论基础,解决了采煤机械多体系统建模、模型数据交换、协同仿真支撑平台框架建立等技术难点;给出了协同仿真技术在薄煤层滚筒采煤机和刨煤机可靠性分析中的工程应用实例。结果表明:利用协同仿真技术能够准确预测与评估薄煤层采煤机械的动态可靠性,并对其结构设计存在的问题予以改进和优化,以提高其工作的可靠性,实现复杂煤层赋存条件下薄煤层安全高效的机械化开采。
Based on the technical difficulties, objectives and requirements of the dynamic reliability analysis of coal mining machinery in thin coal seams under the condition of complicated coal seam occurrence, this paper mainly introduced the multi-software co-simulation technology based on multi-body dynamics theory in thin coal seam The application of dynamic reliability analysis of coal mining machinery mainly includes: Based on the mechanical model of pick and planer, the software for calculating the load of shearer and plow has been developed to solve the problem of coal mining under different conditions and working conditions This paper introduces the theory of multi-body dynamics, solves the technical difficulties of multi-body system modeling of coal mining machinery, exchanging model data and establishing the framework of co-simulation support platform. Examples of Engineering Application in Reliability Analysis of Shearer and Plow. The results show that the use of co-simulation technology can accurately predict and evaluate the dynamic reliability of coal mining machinery in thin coal seams, and improve and optimize the existing problems in structural design in order to improve the reliability of its work and achieve the conditions of complex coal seams Thin seam safe and efficient mechanized mining.