Affiliations: [a] Course of Mechanical Engineering, Tokai University, Tokyo, Japan | [b] Department of Electrical and Electronic Engineering, Tokyo University of Science, Tokyo, Japan | [c] Department of Prime Mover Engineering, Tokai University, Tokyo, Japan | [d] Department of Precision Engineering, Tokai University, Tokyo, Japan
Abstract: In recent years, micro-compact electric vehicles have
been developed and actively marketed, and has become popular as a new
short-distance transfer mobility tool. While micro-compact electric vehicles
do not have generate an engine sound, road and wind noises cause interior
noise, and have a large impact on user comfort in the interior space.
Recently the use of interior noise reduction by ANC has been used in the
automobile industry. In this study, we propose a system whereby a giant
magnetostrictive actuator is installed on the front window of a
micro-compact electric vehicle to actively cut interface vibration noise,
i.e., road noise, transmitted to the interior of the vehicle. In the
experiment, we used an enclosure to simulate the interior of a vehicle and
investigated the installation position of the giant magnetostrictive
actuator to study the vibration characteristics of a window plate.
Keywords: Active noise control, giant magnetostrictive actuator, boundary surface vibration
