| Jurnal Angkasa Tahun 2010 Oleh Mohammad Ardi Cahyono, Agus Basukesti |
PENENTUAN FREKUENSI ALAMIAH SAYAP PESAWAT LATIH DASAR KT-1B MENGGUNAKAN METODE MYKLESTAD |
| ABSTRAK |
| Main parts in aircraft design is a matter of aerodynamics, structures, propulsion, and systems. Aircraft structure must be designed so that a safe at the time of flight operations. Secured means that the structure able to withstand the loads it receives. Loads received not o n l y t h e s t r u c t u r e o f s t a t i c l o a d b u t a l s o t h e d y n a m i c l o a d . Dynamic burden on aircraft noise caused by vibration of the atmosphere and propulsion systems. Dynamic Load will cause fatique and flutter. Flutter phenomenon is very frightening for aircraft structural designer. This phenomenon is characterized by the amplitude of vibration expanding (diverging) in a very fast time. In other words flutter has a very destructive force large. The parts of the aircraft structure most likely to experience a f l u t t e r o f w i n g s , t a i l s , a n d l a n d i n g g e a r . The cause of the flutter is the frequency of external and internal disturbances that have the same amount or close to the natural frequency of the disorder. This study aims to calculate the natural frequency of the basic trainer aircraft wing KT-1B by using the method Myklestad. Modeled as a cantilever wing with 5 (five) mass lump block associated with massless. Numerical iteration is done by using a half-interval method. With this method obtained the natural frequency of the basic trainer aircraft wing KT-1B is 2.51288 [rad / s], 1 3 8 . 4 9 9 1 [ r a d / s ] , 2 0 0 [ r a d / s ] , a n d 3 1 5 . 6 3 [ r a d / s ] . Keywords : flutter, sayap, Myklestad, frekuensi alamiah |
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