Vibration of an aircraft wing /
The purpose of this project to determine the natural frequencies and themode shapes on a wing of an aircraft. If an external force coincides withthe first natural frequency of the wing, resonance would occur and if thissituation is prolonged, the wing of any aircraft would fail due to thecery amplit...
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Sekudai : UTM,
1994
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| _version_ | 1826408853713977344 |
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| author | 368291 Dyala Kumar Thavaratnam |
| author_facet | 368291 Dyala Kumar Thavaratnam |
| author_sort | 368291 Dyala Kumar Thavaratnam |
| collection | OCEAN |
| description | The purpose of this project to determine the natural frequencies and themode shapes on a wing of an aircraft. If an external force coincides withthe first natural frequency of the wing, resonance would occur and if thissituation is prolonged, the wing of any aircraft would fail due to thecery amplitude of deflection.Due to convinence in getting the pricise dimension of a wing, Agro's(UTM designed aircraft) wing was taken for this analysis. The wing has beenidealized and modeled to a cantilever plate for the testings of vibrationand the output is correlated to the wing by model laws.The results from the experiment shows that the idealized wing has verylow natural frequencies (only the first three frequencies are considered). The external forces due to the engine and aerodynamic effect provides avery high external frequency compared to the natural frequency of the idealized wing. This is proven by the operating power of the engine which is 2500 rpm in an idle condition and 4000 rpm just before the aircraft movescompared to the natural frequencies of the idealized wing. Therefore, it isconcluded that resonance will not occur. Furthermore, in the real wing, there are extra components such as tibs, spars, in-between members and supporting members which will provide a very high damping ratio. The mode shapeshave been obtained and drawn for the purpose of any reader to observe thekinds of deflections and twist that occur on this idealized wing. |
| first_indexed | 2024-03-05T01:36:54Z |
| format | |
| id | KOHA-OAI-TEST:262504 |
| institution | Universiti Teknologi Malaysia - OCEAN |
| last_indexed | 2024-03-05T01:36:54Z |
| publishDate | 1994 |
| publisher | Sekudai : UTM, |
| record_format | dspace |
| spelling | KOHA-OAI-TEST:2625042020-12-19T17:08:20ZVibration of an aircraft wing / 368291 Dyala Kumar Thavaratnam Sekudai : UTM,1994The purpose of this project to determine the natural frequencies and themode shapes on a wing of an aircraft. If an external force coincides withthe first natural frequency of the wing, resonance would occur and if thissituation is prolonged, the wing of any aircraft would fail due to thecery amplitude of deflection.Due to convinence in getting the pricise dimension of a wing, Agro's(UTM designed aircraft) wing was taken for this analysis. The wing has beenidealized and modeled to a cantilever plate for the testings of vibrationand the output is correlated to the wing by model laws.The results from the experiment shows that the idealized wing has verylow natural frequencies (only the first three frequencies are considered). The external forces due to the engine and aerodynamic effect provides avery high external frequency compared to the natural frequency of the idealized wing. This is proven by the operating power of the engine which is 2500 rpm in an idle condition and 4000 rpm just before the aircraft movescompared to the natural frequencies of the idealized wing. Therefore, it isconcluded that resonance will not occur. Furthermore, in the real wing, there are extra components such as tibs, spars, in-between members and supporting members which will provide a very high damping ratio. The mode shapeshave been obtained and drawn for the purpose of any reader to observe thekinds of deflections and twist that occur on this idealized wing.Project paper (Bachelor of Mechanical Engineering (Kajiterbang)) - Universiti Teknologi Malaysia, 1994The purpose of this project to determine the natural frequencies and themode shapes on a wing of an aircraft. If an external force coincides withthe first natural frequency of the wing, resonance would occur and if thissituation is prolonged, the wing of any aircraft would fail due to thecery amplitude of deflection.Due to convinence in getting the pricise dimension of a wing, Agro's(UTM designed aircraft) wing was taken for this analysis. The wing has beenidealized and modeled to a cantilever plate for the testings of vibrationand the output is correlated to the wing by model laws.The results from the experiment shows that the idealized wing has verylow natural frequencies (only the first three frequencies are considered). The external forces due to the engine and aerodynamic effect provides avery high external frequency compared to the natural frequency of the idealized wing. This is proven by the operating power of the engine which is 2500 rpm in an idle condition and 4000 rpm just before the aircraft movescompared to the natural frequencies of the idealized wing. Therefore, it isconcluded that resonance will not occur. Furthermore, in the real wing, there are extra components such as tibs, spars, in-between members and supporting members which will provide a very high damping ratio. The mode shapeshave been obtained and drawn for the purpose of any reader to observe thekinds of deflections and twist that occur on this idealized wing.19PRZSLAirplanesVibration (Aeronautics) |
| spellingShingle | Airplanes Vibration (Aeronautics) 368291 Dyala Kumar Thavaratnam Vibration of an aircraft wing / |
| title | Vibration of an aircraft wing / |
| title_full | Vibration of an aircraft wing / |
| title_fullStr | Vibration of an aircraft wing / |
| title_full_unstemmed | Vibration of an aircraft wing / |
| title_short | Vibration of an aircraft wing / |
| title_sort | vibration of an aircraft wing |
| topic | Airplanes Vibration (Aeronautics) |
| work_keys_str_mv | AT 368291dyalakumarthavaratnam vibrationofanaircraftwing |