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对于具有复杂封闭型面的零件,传统等距偏置纤维铺放轨迹规划算法难以同时保证轨迹角度及轨迹间距,使得实际纤维铺放角度与设计角度易产生偏差。为此提出了基于脊线式基准的等铺放角初始轨迹生成算法与测地线式等距偏置批量轨迹生成算法相结合的角度控制轨迹规划算法,此方法集成了等角生成算法产生初始轨迹精度高和等距偏置算法产生批量轨迹效率高的优点,并添加角度控制功能,保证每条轨迹都能满足角度范围要求,有效减小和消除了实际铺放轨迹和设计铺放轨迹之间的差异,在保证轨迹生成角度与间距的同时提高了批量轨迹生成效率。在此算法基础上,采用CATIA二次开发CAA技术和Visual Studio 2005平台开发了相应的软件,并对典型复杂构件S形进气道曲面算例进行了验证,证明了算法的有效性。
For parts with complex closed profile, the traditional equidistant offset fiber placement trajectory planning algorithm is difficult to ensure the trajectory angle and trajectory spacing, making the actual fiber placement angle and design angle easily deviate. For this reason, an angular control trajectory planning algorithm based on ridgeline datum is proposed, which combines the initial trajectory generation algorithm of equal placement angle with the geodesic linear equidistant offset trajectory generation algorithm. This method integrates the algorithm of isochorial generation to generate initial High trajectory accuracy and isobaric offset algorithm have the advantages of high volume trajectory efficiency and added angle control function to ensure that each trajectory can meet the requirements of the scope of the angle, effectively reducing and eliminating the trajectory of the actual deployment trajectory and design trajectory The difference between them can improve the efficiency of batch trajectory generation while ensuring the trajectory generation angle and spacing. On the basis of this algorithm, the CATIA secondary development CAA technology and Visual Studio 2005 platform are used to develop the corresponding software. The examples of S-shaped inlet surfaces of typical complex components are verified, and the effectiveness of the algorithm is verified.