Vibration suppression by modulation of elastic modulus using shape memory alloy
- Sandia National Labs., Albuquerque, NM (United States)
- State Univ. of New York, Buffalo, NY (United States). Dept. of Mechanical and Aerospace Engineering
- Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Dept. of Engineering Science and Mechanics
The first portion of this paper proposes a method of fabricating a material whose modulus can be changed substantially through the application of a specified stimulus. The particular implementation presented here indirectly exploits the large deformation associated with shape memory alloys to achieve the desired modulation of stiffness. The next portion of this paper discusses a class of vibration problems for which such materials have a serious potential for vibration suppression. These are problems, such as the spinning up of rotating machinery, in which the excitation at any time lies within a narrow frequency band, and that band moves through the frequency spectrum in a predictable manner. Finally, an example problem is examined and the utility of this approach is discussed.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 10143025
- Report Number(s):
- SAND--93-0567C; CONF-9309116--1; ON: DE93009834
- Country of Publication:
- United States
- Language:
- English
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