Characterization Of The Damping Properties Of High-Damping Alloys

Item

Title
Characterization Of The Damping Properties Of High-Damping Alloys
Report Number
WL-TR-91-3078 Volume III, p. ICA-1 thru ICA-16
Creator
Ritchie, I. G.
Pan, Z- L.
Corporate Author
Materials and Mechanics Branch, AECL Research, Yhiteshell Laboratories
Date
1991
Date Issued
1991-08
Extent
16
Identifier
ADA241313
Format
1 online resource
Abstract
Many problems of noise and vibration reduction cannot be solved by
traditional methods ~sing mechanical dampers or high-damping viscoelastic
materials (e.g., rubbers, polymers and plastics) . Often constraints imposed
by the service environment , particularly those of stress, temperature and
corrosive atmospheres, will force the design engineer to consider highdamping
metals, alloys and composite materials. Unfortunately,
characterization of the damping and stiffness properties of promising high
damping metals and alloys has hardly ever been carried out in a systematic
manner. Consequently, damping data are rarely accessible to the design
engineer in a readily usable form. This lack of standard data has resulted
in relatively few cases where metals and alloys have been chosen
specifically for their high-damping properties.
This paper outlines techniques and strategies to characterize the damping
properties of high-damping metals and alloys that owe their damping
behaviour to the major classes of high-damping mechanisms. The main goal of
the characterization is to present the damping data in a form that can be
readily used by the design engineer to predict the vibration response of a
component fabricated from the high-damping metal or alloy in question.
Description
Many problems of noise and vibration reduction cannot be solved by
traditional methods ~sing mechanical dampers or high-damping viscoelastic
materials (e.g., rubbers, polymers and plastics) . Often constraints imposed
by the service environment , particularly those of stress, temperature and
corrosive atmospheres, will force the design engineer to consider highdamping
metals, alloys and composite materials. Unfortunately,
characterization of the damping and stiffness properties of promising high
damping metals and alloys has hardly ever been carried out in a systematic
manner. Consequently, damping data are rarely accessible to the design
engineer in a readily usable form. This lack of standard data has resulted
in relatively few cases where metals and alloys have been chosen
specifically for their high-damping properties.
This paper outlines techniques and strategies to characterize the damping
properties of high-damping metals and alloys that owe their damping
behaviour to the major classes of high-damping mechanisms. The main goal of
the characterization is to present the damping data in a form that can be
readily used by the design engineer to predict the vibration response of a
component fabricated from the high-damping metal or alloy in question.
Distribution Classification
1
Distribution Conflict
No
DTIC Record Exists
No
Illinois Tech Related
No
Photo Quality
Not Needed
Report Availability
Full text available
Type
article
Is Part Of
Proceedings of Damping '91: 13-15 February 1991 San Diego, California (GCA-1 through JCB-17)
Media
articleICA

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Items with "Has Part: Characterization Of The Damping Properties Of High-Damping Alloys"
Title Class
Proceedings of Damping '91: 13-15 February 1991 San Diego, California (GCA-1 through JCB-17)