METHOD AND APPARATUS OF MOMENT CALIBRATION FOR RESONANCE FATIGUE TEST

A moment calibration method and apparatus are provided for a resonance fatigue test of a test article. In the moment calibration method, when a load applying unit of the apparatus applies a static load to the test article in a first direction so as to cause bending of the test article, a processor o...

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Hauptverfasser:	LEE, HAKGU, HWANG, BYUNGSUN, LEE, WOOKYOUNG, MOON, JINBUM
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A moment calibration method and apparatus are provided for a resonance fatigue test of a test article. In the moment calibration method, when a load applying unit of the apparatus applies a static load to the test article in a first direction so as to cause bending of the test article, a processor of the apparatus obtains a first measured value from a physical quantity measured by at least one measurement sensor attached to the test article. Also, when the load applying unit applies a static load to the test article in a second direction different from the first direction so as to cause bending of the test article, the processor obtains a second measured value from a physical quantity measured by the measurement sensor. Then the processor calculates a correlation between the first measured value, the second measured value, and moment values respectively calculated from the static loads applied in the first and second directions. By considering a dual-axis load state, the moment calibration method can obtain r