Study of the Complex Stiffness of a Vibratory Mechanical System with Shape Memory Alloy Coil Spring Actuator
Joint Authors
de Araújo, Carlos Jose
Holanda, Samuell A.
Silva, Antonio A.
de Aquino, Alberdan S.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-18
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The vibration control is an important area in the dynamic of structures that seeks to reduce the amplitude of structural responses in certain critical frequency ranges.
Currently, the scientific development leads to the application of some actuators and sensors technologically superior comparing to the same features available on the market.
For developing these advanced sensors and actuators, smart materials that can change their mechanical properties when subjected to certain thermomechanical loads can be employed.
In this context, Shape memory alloys (SMAs) may be used for developing dynamic vibration dampers which are capable of acting on the system providing proper tuning of the excitation frequency and the natural frequency.
This paper aims to analyze the behavior of the stiffness and damping of a SMA helical coil spring actuator coupled to a mechanical system of one degree of freedom (1 DOF) subjected to an unbalanced excitement force and a temperature control system.
By analyzing the effect of these parameters on the structural response and considering the concept of complex stiffness, it can be possible to predict the system's behavior within certain acceptable ranges of vibration, already in the design phase.
American Psychological Association (APA)
Holanda, Samuell A.& Silva, Antonio A.& de Araújo, Carlos Jose& de Aquino, Alberdan S.. 2014. Study of the Complex Stiffness of a Vibratory Mechanical System with Shape Memory Alloy Coil Spring Actuator. Shock and Vibration،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1047862
Modern Language Association (MLA)
Holanda, Samuell A.…[et al.]. Study of the Complex Stiffness of a Vibratory Mechanical System with Shape Memory Alloy Coil Spring Actuator. Shock and Vibration No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1047862
American Medical Association (AMA)
Holanda, Samuell A.& Silva, Antonio A.& de Araújo, Carlos Jose& de Aquino, Alberdan S.. Study of the Complex Stiffness of a Vibratory Mechanical System with Shape Memory Alloy Coil Spring Actuator. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1047862
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047862