Abstract
Vibrational energy transmission through the bolt-nut system joining two elastic structures is important as it is one of the widely used fastening methods. In this work, the effects of fastening torque and washers are studied as major factors influencing the vibrational power transmission. An experimental method using the structural intensity technique is employed to investigate the characteristics of the power flow through the joint. It is found that the energy dissipation decreases with the increase of fastening torque until reaching the nominal one in the elastic range. Also, the test result reveals that increasing the number of washers is effective in attenuating the vibration energy transmission through the joint, but it is found that using more than 3 washers is not efficient in reducing the vibration transmission.
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Recommended by Associate Editor ** Woo Lee
Maryam Faiiazee received B.S. degree in Mechanical Engineering from Sharif University of Technology, Tehran, Iran, and earned the M.S. degree in Mechanical Engineering from KAIST, Daejeon, Korea. She has been affiliated at the R&D Center of the Korea Electric Power Co. as a researcher. Her major interest is the structural acoustics.
Jeong-Guon Ih has been a Professor of Mechanical Engineering at KAIST, Korea, since 1990. His major research interests are in the field of vibroacoustics, product sound quality, and electro-acoustics: Research topics are related with the inverse source identification and field rendering, design of virtual vibro-acoustic field, development of new actuators, and psychoacoustic design of products.
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Faiiazee, M., Ih, JG. Effect of fastening method on the vibration energy flow through bolted structural joints. J Mech Sci Technol 32, 4583–4588 (2018). https://doi.org/10.1007/s12206-018-0904-3
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DOI: https://doi.org/10.1007/s12206-018-0904-3