Title:
DEVICE FOR MONITORING RESONANCE OF CRANKSHAFT DAMPER
Document Type and Number:
Japanese Patent JPS5636023
Kind Code:
A
Abstract:
A method and apparatus for testing an elastomeric torsional vibration damper by oscillating the hub thereof on a shaker table to thereby simulate actual conditions of use. Prior testing methods and apparatus have not compensated for changes in the mechanical properties of the elastomer which often occur during testing. Such changes are usually due to build-up of heat within the elastomer. According to the practice of this invention, changes in the mechanical properties of the elastomer are compensated for by continuously monitoring the phase difference between the hub and the inertia ring. If the phase difference varies from a predetermined amount, the hub input frequency is then varied in such a manner as to maintain the predetermined phase difference between the hub and inertia ring. In this manner a predetermined phase difference may be maintained throughout the test.
Inventors:
MAIKERU JIYAMISON JIIN
ROBAATO CHIYAARUZU BUREMAA JIY
RUISU II UIRIAMUSU
HANSU OTSUTO HAUPUTO
ROBAATO CHIYAARUZU BUREMAA JIY
RUISU II UIRIAMUSU
HANSU OTSUTO HAUPUTO
Application Number:
JP7000280A
Publication Date:
April 09, 1981
Filing Date:
May 26, 1980
Export Citation:
Assignee:
WALLACE MURRAY CORP
International Classes:
G01H1/10; G01H13/00; G01M7/02; G01M15/04; G01M13/00; (IPC1-7): G01H1/00; G01H13/00; G01M15/00
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