摘要
等压力角凸轮具有传动平稳的优点。提出了采用直线逼近算法进行等压力角凸轮轮廓曲线设计的新方法。该方法不仅保证了凸轮机构上压力角恒定不变,并且相邻凸轮轮廓节点坐标可以用递推的方式求得,方便计算机编程计算,通用性强。同时对算法进行了误差分析,证明了算法精度高,能够满足工程应用需求。通过MATLAB编程计算节点坐标,并将计算结果导入ADAMS中,建立凸轮的仿真模型。通过仿真分析,验证了算法的正确性,并且大大简化了分析计算,为等压力角凸轮的实际应用提供了理论依据。
The cam with constant pressure angle has the merit of steady transmission. The line-approac- hing algorithm has been employed to design the cam profile, which can guarantee constant pressure angle of the cam. Meanwhile, the adjacent node coordinates of the cam profile can be obtained in recursive form which can simplify the computation of computer. The error analysis of the algorithm demonstrates high accuracy and shows it can satisfy the demands of engineering application. MATLAB is adopted to calculate the node coordinates and the calculation results are imported to ADAMS to build the simulation model. The algorithm is validated by simulation which simplifies the analysis of kinematics greatly and provides scientific basis for the application of cam with constant pressure angle.
出处
《组合机床与自动化加工技术》
北大核心
2014年第1期46-48,共3页
Modular Machine Tool & Automatic Manufacturing Technique
基金
四川省科技支撑计划项目(2011GZ0280)
国家级大学生创新训练计划项目(201210610175)
关键词
等压力角
凸轮
直线逼近
ADAMS软件
运动学仿真
constant pressure angle
cam
straight line approaching
ADAMS
kinematics simulation
