论文部分内容阅读
针对由两个不同回转半径弯管组成的S-弯管,提出网格缠绕设计与传统缠绕设计联合的缠绕轨迹设计方法。为使缠绕轨迹在S-弯管上均布,并且确保轨迹间调整角最小化,提出缠绕轨迹切点数与缠绕轨迹跳跃数最优组合计算方法。然后编制组合S-弯管的整体缠绕轨迹设计和缠绕轨迹仿真程序模块,来验证联合缠绕轨迹设计方法和切点数跳跃数组合求取算法,从轨迹排布情况和仿真效果分析,该联合缠绕轨迹设计方法能够很好的解决S-弯管的缠绕轨迹设计问题。最后针对利用网格缠绕方法设计的S-弯管缠绕轨迹,进行缠绕精度误差分析,指出误差大小和网格剖分尺寸之间的对应关系;一般来讲,网格剖分尺寸越大,程序运算速度越高;网格剖分尺寸越小,缠绕轨迹误差越小。
Aiming at the S-bend composed of two elbows with different radius of gyration, the design method of the winding locus combining the grid wrapping design and the traditional wrapping design is proposed. In order to make the winding trajectory uniform on the S-elbow and to ensure that the adjustment angles between the trajectories are minimized, an optimal combination calculation method of the number of points of the winding trajectory and the number of jumps of the winding trajectory is proposed. Then, the overall winding trajectory design and the winding trajectory simulation program are combined to verify the design of the joint winding trajectory and the algorithm of calculating the number of jumps of the tangent points. From the trajectory arrangement and simulation results, the joint trajectory The design method can well solve the design problem of winding trajectory of S-bend pipe. Finally, according to the winding trajectory of the S-bend designed by the grid winding method, the error of the winding accuracy is analyzed and the corresponding relationship between the error size and the mesh size is pointed out. Generally speaking, the larger the mesh size, The higher the operation speed, the smaller the mesh size and the smaller the error of the winding path.