Effect of variable-angle trajectory structure on mechanical performance of CF/PEEK laminates made by robotic fiber placement  

作　　者：Shouzheng SUN Haiyang MEI Yang WANG Jiahai ZHANG Zhenyu HAN Jinglan GUO 

机构地区：[1]State Key Laboratory of Robotics and System,Harbin Institute of Technology,Harbin 150001,China [2]Wuhu Robot Technology Research Institute,Harbin Institute of Technology,Wuhu 241000,China [3]Shanghai Spaceflight Precision Machinery Institute,Shanghai 201600,China [4]School of Mechanical and Power Engineering,Harbin University of Science and Technology,Harbin 150080,China

出　　处：《Chinese Journal of Aeronautics》2022年第12期336-356,共21页中国航空学报（英文版）

基　　金：co-supported by the National Natural Science Foundation of China(No.51875134);the Self-Planned Task of State Key Laboratory of Robotics and System(HIT),China(No.SKLRS202218B);the Production and Research Project of HIT Wuhu Robot Technology Research Institute,China(No.HIT-CXY-CMP1-MWLRP-21-01).

摘　　要：In comparison to the traditional fixed-angle trajectory,the variable-angle trajectory has a greater design space.However,it is a challenge to determine which common design curve structure is the most effective for improving mechanical performance.This work explores the effects of various design curves such as fixed-angle curve,linear curve,arc curve,sine curve,Bezier curve,and cubic polynomial curve trajectories on mechanical performance of laminates,including vibration modal performance and buckling performance.Genetic algorithm and improved NSGA-II algorithm are then used to optimize various curve structures.The results are confirmed utilizing thermoplastic Carbon Fiber(CF)/Polyether-Ether-Ketone(PEEK)laminates made by robotic fiber placement experiments.The relationship model between different mechanical performance and curve design variables is established.The optimization of variable-angle structure with mechanical properties as input variables is achieved.Meanwhile,a full-process angle-variable laying software platform from trajectory planning(CAD),trajectory optimization to manufacturing(CAM)is developed for facilitating the fiber placement application.

关 键 词：Fiber reinforced plastics Mechanical properties Robotic fiber placement Thermoplastics Trajectory design Variable-angle laminate 

分 类 号：V250[一般工业技术—材料科学与工程] TB332[航空宇航科学与技术—航空宇航制造工程]