Title page for etd-0801114-152727


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URN etd-0801114-152727
Author Meng-Fan Tsai
Author's Email Address No Public.
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Department IAMPUT
Year 2013
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Acoustical Simulation and Analysis of Shipping Noise in Kaohsiung Harbor
Date of Defense 2014-07-25
Page Count 87
Keyword
  • Acoustical Model
  • Ships Noise
  • Field Measurement
  • Source Level
  • Automatic Identification System (AIS)
  • Kaohsiung Harbor
  • Abstract One of the ocean noise sources comes from shipping. The noise is produced by ship’s propulsion mechanism and propeller, which is raising the noise energy in the water. In recent years, the new ship weight keeps gaining up, so more powerful engine and propeller produce much higher noise energy, due to the increasing shipping need. The noise pollutions in the ocean become more serious. This research uses Kaohsiung Harbor to analyze for the ship noise of over 500 tons, by using AIS (Automatic Identification System) that provide instant information about the ship’s location, ship length, speed, along with AMSN 1.0 (Acoustic Module for Sea-surface Noise) for sound field simulation. Shipping noise field simulated by AMSN is based on area source level method, but we propose another method of speed source level to compare with. Field measurement in Kaohsiung harbor was compared with numerical estimation by correlative analysis, two methods have both high correlation, but the levels were underestimated totally. Therefore, source levels in the simulation were compensated by measurement data, so the noise level estimation of Kaohsiung harbor could get better accuracy.
    Advisory Committee
  • Yang, Shiuh-Kuang - chair
  • Linus Y.S. Chiu - co-chair
  • Ruey-Chang Wei - advisor
  • Files
  • etd-0801114-152727.pdf
  • Indicate in-campus at 3 year and off-campus access at 3 year.
    Date of Submission 2014-09-03

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