| 摘要 |
PURPOSE: A solid-borne sound measuring method is provided to detect an abnormal transfer passage and coherence by analyzing a travel passage of solid-borne sound according to direction. CONSTITUTION: A transfer pass is established to detect initial evaluation and order, and dynamic stiffness on a rubber mounting unit at each pass is measured by a vibroisolating rubber tester. Relative displacement and operational force of the mounting unit are calculated though the dynamic stiffness of the rubber. The vibro-acoustic FRF(Frequency Response Function) is measured according to the output, and the transfer pass of vibration sound is analyzed through the measured value. The transfer passage of a solid-borne sound is detected by the analysis output.
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