波纹形翅片成形过程的有限元模拟与分析  

Finite element simulation and analysis of corrugated fin forming process

作　　者：尚帅[1] 武宝林[1] 田冬龙 沈铭乾 

机构地区：[1]天津工业大学机械工程学院,天津300387

出　　处：《机械设计》2016年第3期30-34,共5页Journal of Machine Design

基　　金：教育部博士点基金资助项目(2009120111000)

摘　　要：为了提高波纹形翅片成形刀具的设计成功率与效率,通过显式动力学软件ANSYS/LS-DYNA对翅片的成形过程进行了有限元模拟,仿真结果与实际加工结果吻合。分析了刀具的参数、装配误差及刀具与铝片间的摩擦因数对翅片成形尺寸的影响规律。发现刀具的重合度不宜过大,否则会导致翅片的成形尺寸误差过大和翅片的外形发生畸形。刀具的中心距装配误差除了影响成形翅片的长度尺寸外,还会影响翅片顶弧长度与斜边长度的比例。刀具与铝片间的摩擦因数大小同样影响翅片成形尺寸。In order to improve the success and efficiency rate of the design of finned ripple forming tool,the explicit dynamics software ANSYS/LS-DYNA was used to simulate the fin forming process. The simulation result was consistent with the actual result. This study analyzed the influence of cutting tool parameters, assembly error of cutting tool and the coefficient of friction between cutter and aluminum sheet on the fin forming size. Contact ratio of the cutting tool should not be too large,otherwise it will lead to the appearance of the fin deformities and large dimensional error. The center distance assembly error not only influenced the length of the forming fin,but also the ratio between the top of the fin arc length and the length of the hypotenuse. The friction coefficient between the cutting tool and aluminum sheet also can influence the figuration dimensions of the Corrugated Fin.

关 键 词：翅片 成形仿真 LS-DYNA 重合度 中心距 摩擦因数 

分 类 号：TH164[机械工程—机械制造及自动化]