Dynamic Modeling of the Capture Process of Snare Space Grapple Device

2011 ◽  
Vol 217-218 ◽  
pp. 1093-1097
Author(s):  
Long Li ◽  
Zong Quan Deng ◽  
Bing Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Modeling ◽  
Central Body ◽  
Solar Sails ◽  
Capture Process ◽  
Target Vehicle ◽  
Process Dynamic ◽  
Element Method ◽  
Flexible Appendages

Snare space grapple device is designed for grappling large in-orbit payloads. Based on describing the grappling process, dynamic modeling of capturing a free-floating vehicle with large solar sails is performed by using Newton-Euler and hybrid coordinate methods in this paper. The models considering target vehicle as a rigid central body with flexible appendages which are discrete by using finite element method.

Dynamics of 3D Micropolar Gyroelastic Beams

2014 ◽  
Author(s):  
Soroosh Hassanpour ◽  
G. R. Heppler
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Modeling ◽  
Dynamic Equations ◽  
Hamilton’S Principle ◽  
The Finite Element Method ◽  
Hamilton's Principle ◽  
Modeling And Analysis ◽  
Element Method

This paper is devoted to the dynamic modeling of micropolar gyroelastic beams and explores some of the modeling and analysis issues related to them. The simplified micropolar beam torsion and bending theories are used to derive the governing dynamic equations of micropolar gyroelastic beams from Hamilton’s principle. Then these equations are solved numerically by utilizing the finite element method and are used to study the spectral and modal behaviour of micropolar gyroelastic beams.

Design and Analysis of MEMS-Based Actuator

2010 ◽  
Vol 97-101 ◽  
pp. 3471-3474
Author(s):  
Shuang Jie Liu ◽  
Yong Ping Hao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mechanical System ◽  
Dynamic Modeling ◽  
Lagrange Equation ◽  
Micro Electro Mechanical System ◽  
Flexible Coupling ◽  
Adams Software ◽  
Coupling Dynamic ◽  
Element Method

One Micro-Electro-Mechanical System(MEMS) based actuator that fabricated by LIGA (Lithographie ,Galanoformung and Abformung) technology was designed to distinguish the change of the exterior condition. In order to prove whether the parts in the actuator intervene each other during motion, ADAMS software was utilized to simulate the motion. The rigid-flexible coupling dynamic modeling of the design was obtained by combining finite element method (FEM) with Lagrange equation, the mathematics modeling was solved with Gear method in ADAMS. The results showed that the MEMS-based actuator could move smoothly, and the simulated curve meets the intent.

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