Use of Scanning Laser Technology to Obtain the Erhu Vibroacoustic

The aim of this research is to develop and validate an experimental model testing method in the erhu instrument. analysis dependent on dynamic behavior materials which results relationships be naturally excited due structure. There are three major factors would directly affect performance vibroacoustic: (1) string, (2) vibrating skin, (3) wooden soundbox. However, transducer mass effect significant impact factor membrane vibration measurement. attention focused skin modes by using scanning laser method. for mode shapes was notable that equipment assembled a loudspeaker, signal point laser, vibrometer. can depending white noise with plane acoustic wave push surface. content two types doppler vibrometer various purpose. single measured driving as reference center responses were 276 measuring points showed vibroacoustic frequency diversifications. characteristic into five patterns ranges (20 5,000 Hz). Obviously, convenient readily reproducible setup evaluate properties. As engineering application, proposed served fundamental tool when predicting or even suppressing possible excitations associated particular mechanical designs instruments.