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Title: High force vibration testing with wide frequency range

Patent ·
OSTI ID:1083929

A shaker assembly for vibration testing includes first and second shakers, where the first shaker includes a piezo-electric material for generating vibration. A support structure permits a test object to be supported for vibration of the test object by both shakers. An input permits an external vibration controller to control vibration of the shakers.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,408,066
Application Number:
12/911,383
OSTI ID:
1083929
Country of Publication:
United States
Language:
English

References (11)

Flexure assembly patent October 2000
High frequency multiple degree of freedom vibration test machine patent March 2005
Shakers and methods of testing patent June 2005
Apparatus for vibration testing patent December 1987
Control system for vibration testing apparatus patent March 1988
Vibrafuge: Re-Entry and Launch Test Simulation in a Combined Linear Acceleration and Vibration Environment conference June 2006
Energy redistribution system for a vibrating system patent January 2003
Multi-axis, complex mode pneumatically actuated plate/space frame shaker for quasi-random pneumatic vibration facility patent January 1980
Electrodynamic transducer shaker and method for its manufacture patent June 1997
Vibration testing apparatus patent December 1984
Vibrator-driven table apparatus patent September 1998