Finite Element analysis of a shape memory alloy actuator for a micropump
نویسندگان
چکیده
منابع مشابه
A bidirectional shape memory alloy folding actuator
This paper presents a low-profile bidirectional folding actuator based on annealed shape memory alloy sheets applicable for mesoand microscale systems. Despite the advantages of shape memory alloys—high strain, silent operation, and mechanical simplicity—their application is often limited to unidirectional operation. We present a bidirectional folding actuator that produces two opposing 180 mot...
متن کاملExperimental Hysteresis Identification and Micro-position Control of a Shape-Memory-Alloy Rod Actuator
In order to exhaustively exploit the high-level capabilities of shape memory alloys (SMAs), they must be applied in control systems applications. However, because of their hysteretic inherent, dilatory response, and nonlinear behavior, scientists are thwarted in their attempt to design controllers for actuators of such kind. The current study aims at developing a micro-position control system ...
متن کاملfinite element analysis of the pseudo-elastic behavior of shape memory alloy truss and beam
the pseudo-elastic behavior of shape memory alloy (sma) truss and cantilever beam are investigated. brinson’s one-dimensional material model, which uses the twinned and detwinned martensite fractions separately as internal variables, is applied in the algorithm to establish the sma stress-strain characteristics. this material model also incorporates different young’s modulus for austenitic and ...
متن کاملOptimal Design of a Shape Memory Alloy Actuator for Microgrippers
In this paper, a modular microactuator based on shape memory alloy (SMA) actuation to drive the joints of a microgripper is described. Its design is a combination of two SMA actuators installed on the links of a special mechanism : one of them drives the rotation of the joint and the other one produces the necessary force to manipulate objects. An accurate model of the thermo-mechanical behavio...
متن کاملShape Memory Alloy Actuator forBio-medical application
In this paper various applications of shape memory alloys (SMA) in bio-medical field based upon their material properties are discussed, and a novel SMA spring actuator design for biopsy is proposed. Design parameters such as spring configuration, wire diameter required for designing the actuator were defined and obtained through experiments. Finally, itconcludeswith the possibility of using SM...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Simulation Modelling Practice and Theory
سال: 2012
ISSN: 1569-190X
DOI: 10.1016/j.simpat.2012.05.006