Numerical simulation analysis for deformation deviation and experimental verification for an antenna thin-wall parts considering riveting assembly with finite element method

2018 ◽  
Vol 25 (1) ◽  
pp. 60-77 ◽  
Author(s):  
Ming-hui Pan ◽  
Wen-cheng Tang ◽  
Yan Xing ◽  
Jun Ni
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Experimental Verification ◽  
Simulation Analysis ◽  
Thin Wall ◽  
Element Method

Numerical Simulation Analysis on Repairing Hole of UAV Wing

2013 ◽  
Vol 690-693 ◽  
pp. 2891-2895
Author(s):  
Guo Dong Jin ◽  
Li Bin Lu ◽  
Liang Xian Gu ◽  
Juan Liang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Service Life ◽  
Simulation Analysis ◽  
High Stress ◽  
Reference Value ◽  
Safety Standards ◽  
Aerial Vehicle ◽  
Element Method

Parachute recovery of UAV is often caused of holes and other injuries on wings, that are required repair and maintenance. The surface of the patch will form the high stress area, that affects UAV using life and safety .But repair method is good or bad directly affects size of the high stress area. Based on finite element method, the broken hole repairing method was formulated and validated by ANSYS. The method could minimize the high stress area as far as possible, and economically repair broken hole of wing in certain precision and safety standards condition. It has a certain reference value for UAV repair and management, and has reference significance for extending the service life of the UAV. Key words: Finite element method; Unmanned Aerial Vehicle (UAV); Simulation; Hole of wings

Numerical Simulation for the Milling of Alluminum Alloy Thin-Wall Workpiece with Two and Four Flutes Helical Cutter

2010 ◽  
Vol 34-35 ◽  
pp. 1870-1875
Author(s):  
Ping Yuan ◽  
Hui Yue Dong
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Cutting Force ◽  
Milling Process ◽  
Thin Wall ◽  
Milling Cutter ◽  
High Metal ◽  
Milling Forces ◽  
Element Method

In the milling process of thin wall workpiece, the more cutter flutes, the high metal remove ratio can be gotten. Milling forces with two-futes and four-flutes milling cutter were anlysised and compared using finite element method. The possibility and advantage of machining thin wall workpiece with four flutes milling cutter was introduced. The four flutes cutter can improve the metal remove ratio, and cutting force is more uniform in general.

Multi-Step Forward Finite Element Method for the Numerical Simulation of Sheet Metal Forming

2011 ◽  
Vol 474-476 ◽  
pp. 251-254
Author(s):  
Jian Jun Wu ◽  
Wei Liu ◽  
Yu Jing Zhao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Deep Drawing ◽  
Metal Forming ◽  
Mapping Method ◽  
Constitutive Relationship ◽  
Element Method

The multi-step forward finite element method is presented for the numerical simulation of multi-step sheet metal forming. The traditional constitutive relationship is modified according to the multi-step forming processes, and double spreading plane based mapping method is used to obtain the initial solutions of the intermediate configurations. To verify the multi-step forward FEM, the two-step simulation of a stepped box deep-drawing part is carried out as it is in the experiment. The comparison with the results of the incremental FEM and test shows that the multi-step forward FEM is efficient for the numerical simulation of multi-step sheet metal forming processes.

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