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平面多杆机构在纺织、印刷、包装机械和缝纫机等方面应用十分广泛。随着这些机械向高速、精密方向发展,对于机械的振动、噪声、受力等动力性能的要求也随之提高。传统的设计方法是:先按运动性能要求进行机构运动设计,然后对机构进行动力性能的验算,往往需经多次反复才能满足要求。1975年美国康特(F. L. Conte)等人曾对有三个精确点位置的曲柄摇杆机构作了运动、动力性能最优化设计的讨论。这种方法简单的说,就是机构的运动综合+动力分析+最优化设计。文中分别以机构的震动力、震动力矩、驱动扭矩的波动和最大铰接点的力等动力性能指标为目标函数,以曲柄摇杆机构的存在条件和最小传动角条件为约束函数,进行最优化设计。但是,这个方法
Flat multi-bar mechanism in the textile, printing, packaging machinery and sewing machines and other aspects of a wide range of applications. With these machines to high-speed, precision direction, the mechanical vibration, noise, stress and other dynamic performance requirements also will be increased. The traditional design method is: First, according to the performance requirements of the movement of the body design, and then check the dynamic performance of agencies, often after many repeated to meet the requirements. In 1975, F. Conte, et al., USA, discussed the optimal design of motion and dynamic performance of crank and rocker mechanism with three precise points. This method is simple to say, that is, the body’s movement of integrated + dynamic analysis + optimal design. In this paper, the objective function of the dynamic performance of the mechanism such as the vibration force, the vibration torque, the driving torque fluctuation and the maximum hinge point are taken as the objective functions. The optimal design is made by the existence condition of the crank-rocker mechanism and the minimum transmission angle condition . However, this method