The Resource Analysis of a substitute for the impact damper to damp near-resonant mechanical vibrations, by Nguyen Khanh Van

Analysis of a substitute for the impact damper to damp near-resonant mechanical vibrations, by Nguyen Khanh Van

Label
Analysis of a substitute for the impact damper to damp near-resonant mechanical vibrations
Title
Analysis of a substitute for the impact damper to damp near-resonant mechanical vibrations
Statement of responsibility
by Nguyen Khanh Van
Creator
Author
Subject
Language
eng
Summary
"This report investigates a substitute for the impact damper which, although highly effective in reducing vibration amplitudes of near-resonant mechanical systems, in operation causes often unacceptable intensive noise. The present damper consists of a piston free to move in a cylinder, at either end of which is a ball valve set to open at a preset pressure, and in the middle along its length an intake port. An approximate analytical study is made to determine the conditions for the existence of "noiseless periodic operation" of the damper, periodic operation without the occurence of impacts. This approach is based on the describing function method which harmonically linearizes the nonlinear damping force involved in the equations of motion of the system. The excitation force to produce this periodic operation and the response results from this operation may be predicted by this analytical approach. Digital simulation of the system is used to verify the predictions by analytical approach. A study on a given system indicates that appropriate design parameters may be selected for a damper of this type to obtain a reduction in response amplitude of the primary system at resonance to 1/5 of its value without the damper. This is essentially the reduction that might be obtained with a properly designed impact damper. Unlike the impact damper, the new damper is expected to operate relatively noiselessly"--Abstract, leaves ii-iii
Member of
Cataloging source
UMR
http://library.link/vocab/creatorDate
1938-
http://library.link/vocab/creatorName
Van, Nguyen Khanh
Degree
M.S.
Dissertation year
1972.
Granting institution
University of Missouri--Rolla
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Vibration
  • Damping (Mechanics)
  • Machinery
Label
Analysis of a substitute for the impact damper to damp near-resonant mechanical vibrations, by Nguyen Khanh Van
Instantiates
Production
Note
  • Vita
  • Typescript
Bibliography note
Includes bibliographical references (leaves 104-105)
Carrier category
volume
Carrier category code
  • nc
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
6033549
Dimensions
29 cm
Extent
xi, 127 leaves
Media category
unmediated
Media MARC source
rdamedia.
Media type code
  • n
Other physical details
illustrations
System control number
(OCoLC)6033549
Label
Analysis of a substitute for the impact damper to damp near-resonant mechanical vibrations, by Nguyen Khanh Van
Production
Note
  • Vita
  • Typescript
Bibliography note
Includes bibliographical references (leaves 104-105)
Carrier category
volume
Carrier category code
  • nc
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
6033549
Dimensions
29 cm
Extent
xi, 127 leaves
Media category
unmediated
Media MARC source
rdamedia.
Media type code
  • n
Other physical details
illustrations
System control number
(OCoLC)6033549

Library Locations

    • Curtis Laws Wilson LibraryBorrow it
      400 West 14th Street, Rolla, MO, 65409, US
      37.955220 -91.772210
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