【摘要】 利用矩阵分析理论建立了曲柄滑块机构精度分析的一般模型,利用状态函数建立了曲柄滑块机构运动精度的概率分析模型,以对心曲柄滑块机构为具体对象,建立了曲柄滑块机构运动输出精度模型及其概率分析计算模型。算例分析表明:在给定的设计精度下,对心曲柄滑块机构在不同的运动状态有着不同的运动误差和不同的运动可靠度。模型可以定量地给出曲柄滑块机构在不同运动状态下的失效概率,对曲柄滑块机构的设计与制造具有应用价值。更多还原

【Abstract】 A general model of slider-crank mechanism precision analysis is established based on matrix analysis theory;probability analysis model of slider-crank mechanism movement precision is obtained based on state functions;the movement output accuracy model and probability analysis model of slider-crank mechanism are established based on centring slidercrank mechanism.The case study indicated that centring slider-crank mechanism has different kinematic error and different reliability under given design accuracy.The effectiveness probability of slider-crank mechanism can be given out under different motion stage by the models,and it is important for design and manufacture of slider-crank mechanism.更多还原