scholarly journals Modeling and Simulation of a Shape Memory Alloy Spring Actuated Flexible Parallel Manipulator

2018 ◽  
Vol 133 ◽  
pp. 895-904 ◽  
Author(s):  
Ranjith Pillai R ◽  
Murali G ◽  
Gopal M
Keyword(s):  
Shape Memory Alloy ◽  
Modeling And Simulation ◽  
Shape Memory ◽  
Parallel Manipulator

Workspace analysis and performance of a binary actuated parallel manipulator with flexural joints

2003 ◽  
Vol 217 (3) ◽  
pp. 313-330 ◽  
Author(s):  
E Ottaviano ◽  
G Carbone ◽  
M Ceccarelli
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Parallel Manipulator ◽  
Mechanical Design ◽  
Parallel Architecture ◽  
Workspace Analysis ◽  
Position And Orientation ◽  
And Performance ◽  
Direct Kinematics ◽  
Flexural Joints

In this paper the design of a miniaturized parallel architecture is investigated in terms of basic performances concerning mobility and workspace characteristics. The miniature requirements have been achieved with a milli-scaled parallel manipulator requiring flexural joints and binary actuation with shape memory alloy wires or small pneumatic pistons. The mechanical design is analysed by considering the mobility of the flexural joints in order to size them and model the kinematics of the joints. The reachability is analysed through a suitable formulation of the direct kinematics by also taking into account binary actuation. Workspace performance has been determined in terms of position and orientation capabilities.

Shape memory alloy actuators in smart structures: Modeling and simulation

2004 ◽  
Vol 57 (1) ◽  
pp. 23-46 ◽  
Author(s):  
Stefan Seelecke ◽  
Ingo Mu¨ller
Keyword(s):  
Optimal Control ◽  
Shape Memory Alloy ◽  
Modeling And Simulation ◽  
Shape Memory ◽  
Smart Structures ◽  
Review Article ◽  
Material Behavior ◽  
Control Methods ◽  
Time Optimal ◽  
And Control

This review article gives an overview of the new and quickly developing field of shape memory alloy (SMA) actuators in smart structures. The focus is on the aspects of modeling and simulation of such structures, a task that goes beyond classical modeling approaches as it has to combine constitutive modeling with structural and control aspects in a highly interdisciplinary way. We review developments in each of these fields, trying to combine them into a smooth picture of how to treat the problem efficiently. After a discussion of modeling aspects with particular regard to actuator applications, the simulation of standard feedback control methods is demonstrated. Subsequently, model based methods from optimal control theory are presented, accounting for the strongly nonlinear and hysteretic material behavior of SMAs. Real-time optimal control methods are introduced and, finally, aspects of finite element implementation of an SMA actuator model are discussed and illustrated by the simulation of an adaptive aircraft wing. This review article cites 155 references.

Structure and mobility of martensite variant interfaces in a Cu-Zn-AI shape memory alloy

2003 ◽  
Vol 112 ◽  
pp. 519-522 ◽  
Author(s):  
W. Cai ◽  
J. X. Zhang ◽  
Y. F. Zheng ◽  
L. C. Zhao
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Martensite Variant
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