skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Vibration Testing and Control.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the Student Symposium held July 26, 2016 in Albuquerque, New Mexico, United States.
Country of Publication:
United States

Citation Formats

Guillory, Ronald Wayne,. Vibration Testing and Control.. United States: N. p., 2016. Web.
Guillory, Ronald Wayne,. Vibration Testing and Control.. United States.
Guillory, Ronald Wayne,. 2016. "Vibration Testing and Control.". United States. doi:.
title = {Vibration Testing and Control.},
author = {Guillory, Ronald Wayne,},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 7

Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Abstract not provided.
  • This paper describes a multiple shaker control system developed at Sandia National Laboratories for driving a single test item with random excitation. The system allows for cross-coupled mechanical systems with partially coherent control points. The system uses time-domian randomization to generate the continuous Gassian drive signals.
  • This paper develops an algorithm for a multiple shaker random vibration control system. The system is designed for several shakers driving a single test item with full cross-coupling control. The method allows for cross-coupled mechanical systems with partially coherent control points. This report extends a previous paper in the following respects. The algorithm corrects both the auto spectra and the cross spectra of the control points in closed loop. Multiple-shaker control systems require the inversion of the system frequency response function matrix. When this matrix is singular or near singular, large errors can result. Under these conditions, procedures are developedmore » for calculating a pseudo inverse. This paper also includes a discussion of the time randomization procedure used to provide a true random output.« less
  • Vibration testing in a centrifuge acceleration field (up to 50 gs) can be accomplished in either of two axes relative to the centrifuge acceleration with a modified, commercially available, electrodynamic shaker and the use of a specially designed orthogonal motion converter. Fixing the shaker armature axis in-line with the centrifuge arm (head towards the pivot) keeps the inertial forces on the head in the one direction which can be offset with servo controlled pneumatic bags located beneath the shaker head. Testing in an axis perpendicular to the principal axis is accomplished with the orthogonal motion converter which is driven bymore » the shaker head. 13 figs.« less
  • Control valves are needed in many offshore applications involving fluid pressure drop levels that result in excessive system noise and vibration. These situations occur in liquid and gas flow applications. The root cause of the destructive forces that result in noise and vibration is excessive fluid velocities and the kinetic energy associated with these velocities during the pressure letdown. These high uncontrolled velocities can also cause significant erosion of internal parts that would result in a measurable degradation of the valve performance. The use of a multi-path, multi-staged trim design results in fluid velocities that will eliminate the noise andmore » vibration associated with the pressure letdown. Valves of this type are used in chokes, pipeline vents, flow to flare, compressor recycle, pump minimum flow, level control, pressure letdown, fire water control, and bypass flow to mention a few.« less