Dynamic analysis of an Air Handling Unit (AHU)
Also available in printed version : TJ153 A236 2013 raf
| 第一著者: | |
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| その他の著者: | |
| フォーマット: | Master's thesis |
| 言語: | 英語 |
| 出版事項: |
Universiti Teknologi Malaysia
2025
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| 主題: | |
| オンライン･アクセス: | https://utmik.utm.my/handle/123456789/113336 |
| Abstract | Abstract here |
| _version_ | 1854975078814449664 |
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| author | Abang Mohamad Aizuddin Abg. Mohd. Mohtar |
| author2 | Raja Ishak Raja Hamzah. supervisor |
| author_facet | Raja Ishak Raja Hamzah. supervisor Abang Mohamad Aizuddin Abg. Mohd. Mohtar |
| author_sort | Abang Mohamad Aizuddin Abg. Mohd. Mohtar |
| description | Also available in printed version : TJ153 A236 2013 raf |
| format | Master's thesis |
| id | utm-123456789-113336 |
| institution | Universiti Teknologi Malaysia |
| language | English |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-1133362025-04-18T07:02:27Z Dynamic analysis of an Air Handling Unit (AHU) Abang Mohamad Aizuddin Abg. Mohd. Mohtar Raja Ishak Raja Hamzah. supervisor Vibration--Testing Vibration--Mathematical models Also available in printed version : TJ153 A236 2013 raf The purpose of this study is to exercise the vibration methods for approaching a real case study which is, in this case, an air-handling unit (AHU) assembly that experiences a vibration-related problem. The methods that were utilised are the Finite Element Analysis (FEA), the Experimental Modal Analysis (EMA) and the Operating Deflection Shapes (ODS). Mathematical and analytical modelling were also done before the experimental methods where they are used as reference for estimation of the results. Initial vibration testing was done to verify the validity of the AHU was experiencing a vibration-related problem. Results between the analytical, FEA and experimental methodologies which are the EMA and ODS were compared for analysis. Dunkerley's and Rayleigh's technique were found to be good estimators for the fundamental natural frequency of the significant frame structure that supports the AHU. The corresponding mode shapes were used as reference for finding the relevant experimental mode shapes of the AHU. Then, FEA simulation were fine-tuned to best simulate the real case study AHU for future structural modification purposes. The ODS results show the belt pulley system that connects the motor and the fan of the AHU experienced a strong axial vibration as supported by the initial vibration testing. It was hypothesised that the AHU might be suffering from belt misalignment problem that introduces vibration to the whole AHU structure resulting in high vibration displacements. Limitations and the difficulties faced during the implementation of procedures for the theoretical and experimental methodologies were discussed. Further works can be done to simulate the rotational force of the belting system in the FEA model and tuning it to the ODS results to obtain a better simulation behaviour of the AHU under different conditions. practical01 UTM 145 p. Thesis (Sarjana Kejuruteraan (Mekanikal)) - Universiti Teknologi Malaysia, 2013 2025-04-18T07:02:27Z 2025-04-18T07:02:27Z 2013-01 Master's thesis https://utmik.utm.my/handle/123456789/113336 valet-20150318-091748 vital:75248 ENG Closed Access UTM Complete Completion Unpublished Universiti Teknologi Malaysia |
| spellingShingle | Vibration--Testing Vibration--Mathematical models Abang Mohamad Aizuddin Abg. Mohd. Mohtar Dynamic analysis of an Air Handling Unit (AHU) |
| thesis_level | Master |
| title | Dynamic analysis of an Air Handling Unit (AHU) |
| title_full | Dynamic analysis of an Air Handling Unit (AHU) |
| title_fullStr | Dynamic analysis of an Air Handling Unit (AHU) |
| title_full_unstemmed | Dynamic analysis of an Air Handling Unit (AHU) |
| title_short | Dynamic analysis of an Air Handling Unit (AHU) |
| title_sort | dynamic analysis of an air handling unit ahu |
| topic | Vibration--Testing Vibration--Mathematical models |
| url | https://utmik.utm.my/handle/123456789/113336 |
| work_keys_str_mv | AT abangmohamadaizuddinabgmohdmohtar dynamicanalysisofanairhandlingunitahu |