Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model
The baiji (Lipotes vexillifer) of the Yangtze River possesses a sophisticated biosonar system. In this study, a finite element approach was used to numerically investigate the propagation of acoustic waves through the head of the Yangtze River dolphin, which possesses an inhomogeneous and complex st...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
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ACOUSTICAL SOC AMER AMER INST PHYSICS
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/76259 |
| _version_ | 1848763656453488640 |
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| author | Wei, Chong Zhang, Yu Au, Whitlow WL |
| author_facet | Wei, Chong Zhang, Yu Au, Whitlow WL |
| author_sort | Wei, Chong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The baiji (Lipotes vexillifer) of the Yangtze River possesses a sophisticated biosonar system. In this study, a finite element approach was used to numerically investigate the propagation of acoustic waves through the head of the Yangtze River dolphin, which possesses an inhomogeneous and complex structure. The acoustic intensity distribution predicted from models with and without the melon and/or skull showed that the emitted sound beam was narrow and formed a highly directed acoustic beam, and the skull and melon significantly enhanced the directional characteristics of the emitted sound. Finally, for a short duration impulsive source, the emitted sound pressure distributions were also simulated at different propagation times. The results provide useful information for better understanding the operation of the biosonar system in this rare and perhaps extinct animal. |
| first_indexed | 2025-11-14T11:06:56Z |
| format | Journal Article |
| id | curtin-20.500.11937-76259 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:06:56Z |
| publishDate | 2014 |
| publisher | ACOUSTICAL SOC AMER AMER INST PHYSICS |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-762592019-09-12T06:53:47Z Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model Wei, Chong Zhang, Yu Au, Whitlow WL Science & Technology Technology Life Sciences & Biomedicine Acoustics Audiology & Speech-Language Pathology TURSIOPS-TRUNCATUS DELPHINUS-DELPHIS TRANSMISSION DOLPHINS The baiji (Lipotes vexillifer) of the Yangtze River possesses a sophisticated biosonar system. In this study, a finite element approach was used to numerically investigate the propagation of acoustic waves through the head of the Yangtze River dolphin, which possesses an inhomogeneous and complex structure. The acoustic intensity distribution predicted from models with and without the melon and/or skull showed that the emitted sound beam was narrow and formed a highly directed acoustic beam, and the skull and melon significantly enhanced the directional characteristics of the emitted sound. Finally, for a short duration impulsive source, the emitted sound pressure distributions were also simulated at different propagation times. The results provide useful information for better understanding the operation of the biosonar system in this rare and perhaps extinct animal. 2014 Journal Article http://hdl.handle.net/20.500.11937/76259 10.1121/1.4883597 English ACOUSTICAL SOC AMER AMER INST PHYSICS restricted |
| spellingShingle | Science & Technology Technology Life Sciences & Biomedicine Acoustics Audiology & Speech-Language Pathology TURSIOPS-TRUNCATUS DELPHINUS-DELPHIS TRANSMISSION DOLPHINS Wei, Chong Zhang, Yu Au, Whitlow WL Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model |
| title | Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model |
| title_full | Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model |
| title_fullStr | Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model |
| title_full_unstemmed | Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model |
| title_short | Simulation of ultrasound beam formation of baiji (Lipotes vexillifer) with a finite element model |
| title_sort | simulation of ultrasound beam formation of baiji (lipotes vexillifer) with a finite element model |
| topic | Science & Technology Technology Life Sciences & Biomedicine Acoustics Audiology & Speech-Language Pathology TURSIOPS-TRUNCATUS DELPHINUS-DELPHIS TRANSMISSION DOLPHINS |
| url | http://hdl.handle.net/20.500.11937/76259 |