| Presentation | 1995/5/26 3-D FEM Analysis of Realistic Model of Nasal Cavity Observed by MRI Hiroshi Sakakibara, Akira Ishida, Takayoshi Nakai, Hisayoshi Suzuki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A realistic model of the nasal cavity observed by MRI is constructed. Acoustic transmission character of the model is analyzed by finite element method (FEM). The results show that the sound propagates along with the tube of the nasal cavity at resonant frequencies 1100Hz and 2300Hz in spite of complex shape of the nasal cavity. Pole-zero pair at about 1800Hz is due to left-right asymmetricity of the nasal passege. Cross sectional areas for the equivalent curcuits model(ECM) are estimated from sound distributions at the first resonant frequency 1100Hz. Frequency chracteristics by ECM is deferent from those by FEM. This is due to tilt of sound intensity at the bifucation of the nasal cavity, and curved right and left nasal passeges. First and second resonant frequencies by ECM can be approximately same as those by FEM by using corrected size in ECM, but the peak at approximately 3000Hz can not be accounted for by such corrections in ECM. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | finite element method / nasal cavity / realistic model / equivalent curcuits model |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 1995/5/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 3-D FEM Analysis of Realistic Model of Nasal Cavity Observed by MRI |
| Sub Title (in English) | |
| Keyword(1) | finite element method |
| Keyword(2) | nasal cavity |
| Keyword(3) | realistic model |
| Keyword(4) | equivalent curcuits model |
| 1st Author's Name | Hiroshi Sakakibara |
| 1st Author's Affiliation | Dept. of Electric and Electronics, Faculty of Engineering, Shizuoka University() |
| 2nd Author's Name | Akira Ishida |
| 2nd Author's Affiliation | Dept. of Electric and Electronics, Faculty of Engineering, Shizuoka University |
| 3rd Author's Name | Takayoshi Nakai |
| 3rd Author's Affiliation | Dept. of Electric and Electronics, Faculty of Engineering, Shizuoka University |
| 4th Author's Name | Hisayoshi Suzuki |
| 4th Author's Affiliation | Dept. of Electric and Electronics, Faculty of Engineering, Shizuoka University |
| Date | 1995/5/26 |
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| Volume (vol) | vol.95 |
| Number (no) | 70 |
| Page | pp.pp.- |
| #Pages | 8 |
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