求翻译：为比较挖掘机工作装置设计方案与国外同类产品的性能，开发液压挖掘机工作装置仿真模型并进行运动学仿真研究。以工作装置铰接点位置为设计变量，工作装置的工作范围和挖掘力性能为目标函数，进行工作装置运动学仿真分析。仿真模型生成多组工作装置铰接点设计方案，逐个仿真得到工作范围与工作装置各油缸力臂的数据，以挖掘力性能优先原则兼顾工作范围进行设计方案的筛选，筛选出的设计方案与国外同类产品相比，挖掘力与工作范围性能接近，达到了优化设计的目标。模型与仿真分析表明，工作装置设计方案优化后，性能达或接近国外同类产品。是什么意思？

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For a comparison excavator work unit design programs with foreign products, development of performance hydraulic excavator work unit simulation models and kinematic simulation studies. In the working unit hinge point location for design variables, the units of the scope of work and digging force per

In order to compare the excavator work installment design proposal and the overseas similar product performance, the development hydraulic pressure excavator work installment simulation model advances together is lucky the kinematics simulation research.Take works the installment hinge point positio

To compare excavator design with the performance of similar foreign products, development of simulation model of hydraulic excavator working device and kinematics simulation studies. Working device hinge joints to position as a design variable, working devices work and mining properties into the con

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