Abstract
This paper presents the study about the frequency response function of small unmanned underwater vehicle (UUV) based on the experiment in air condition. As the UUV has been widely used in scientific, military, and commercial areas, it is also important to gather the information in an underwater environment for autonomous operation. Only sonar systems that use sound waves can be used in underwater environments due to the strong attenuation of electromagnetic waves in them. Since the vibration of UUV is usually transferred through the inner space of UUV body, the transferred vibration can affect the performance of various sonar systems that equip the UUV such as side-scan sonar or forward-looking sonar. Therefore, it necessary to predict the effect of the transferred vibration of the UUV for high level autonomous operation. In this paper, an experimental study was carried out to analyze a vibration feature of a small real UUV in the air condition using frequency response function and the experimental results are presented.
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