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GJ956073 拉挖式挖掘机的内力分析[刊,中]/刘国民…//工程机械.—1995,(8).—5～8,17将挖掘机和土壤视为一闭合的力学系统,认为挖掘时工作装置的真实内力分布均在相应的约束边界上取得。介绍了建立内力分析数学模型所涉及的一些要点,如点在不同坐标系中的表示,斗齿处挖掘阻力同各边界条件处于临界值的关系,这些是进行挖掘机内力分析的基础。在这个基础上编制出的内力分析程序是对挖掘机工作时的各种不利状态的最好模拟。参1
GJ956073 Internal Force Analysis of Digging Excavator[中刊]/刘国民...//工程机械—1995,(8).—5～8,17 Treat excavator and soil as a closed mechanical system. The actual internal force distribution of the working device during excavation is obtained on the corresponding constraint boundary. Some important points involved in the establishment of the internal force analysis mathematical model are introduced. For example, the point is expressed in different coordinate systems. The relationship between the resistance at the tooth extraction and the boundary conditions is at the critical value. These are the basis for the internal force analysis of the excavator. The internal force analysis program compiled on this basis is the best simulation of various unfavorable conditions when the excavator is working. Reference 1