scholarly journals Design of Cruise Missile Navigation System

2019 ◽  
Vol 7 (1) ◽  
pp. 42-53
Author(s):  
Muhammad Aria ◽  
Iqbal Hasan Suteja ◽  
Rizqy Gunawan ◽  
Ichsan Jatnika
Keyword(s):  
Navigation System ◽  
Control Surface ◽  
Cruise Missile ◽  
Ducted Fan

Abstrak – Penelitian pada bidang teknologi roket dapat menjadi indikator kemajuan suatu negara. Teknologi roket dapat digunakan sebagai alat pertahanan. Di bidang militer jenis roket yang digunakan adalah peluru kendali (rudal). Jenis rudal yang paling terkenal adalah rudal jelajah.  Rudal jelajah terbang dengan lintasan horizontal menuju target. Rudal jelajah menggunakan sayap sebagai pembangkit gaya aerodinamika untuk mengontrol gerakan sewaktu mengudara. Pada intinya rudal jelajah adalah pesawat tanpa awak yang dirancang untuk membawa hulu ledak konvensional dengan jarak ratusan kilometer. Agar dapat mencapai target secara autonomus, rudal jelajah harus memiliki sistem control surface otomatis yang dapat membetulkan arah saat terbang sesuai dengan misi. Sistem navigasi yang baik akan mengarahkan rudal jelajah pada target dengan akurat. Sistem navigasi dapat menentukan posisi, kecepatan, dan sikap dari rudal jelajah. Penelitian ini akan membahas mengenai perancangan sistem navigasi pada rudal jelajah. Sistem navigasi ini akan digunakan rudal jelajah yang akan diikutkan pada kompetisi. Dalam penelitian ini, sistem navigasi yang dibuat akan berbasiskan pada waypoint. Pada sistem ini posisi dari rudal akan terus menerus diperbaharui agar sistem dapat mengarahkan rudal pada sasaran dengan akurat. Dengan mempertimbangkan faktor keamanan, motor elektrik dan baling baling berjenis ducted fan dipilih sebagai pengganti tenaga pendorong pada rudal jelajah konvensional. Ini mengakibatkan perubahan parameter seperti pada kecepatan, getaran, daya angkat, dan daya dorong. Berdasarkan hasil pengujian, sistem mampu merespon perubahan arah lintasan terbang pada rudal agar mendekati target sebesar 100% dan mampu mengarahkan rudal jelajah pada target dengan galat sebesar 30%, dengan parameter keberhasilan mencapai target yang memiliki radius sejauh 15 meter kemudian melakukan separasi. Kata kunci : Rudal jelajah, Sistem navigasi, Ducted fan, Waypoint, Control surface.

scholarly journals Design, manufacture and flight test of an Electric Ducted Fan (EDF) powered cruise missile

2018 ◽  
Vol 1130 ◽  
pp. 012030
Author(s):  
G Nugroho ◽  
M A Bramantya ◽  
M A Ghani ◽  
S S Wang ◽  
Y A Kurniawan
Keyword(s):  
Flight Test ◽  
Cruise Missile ◽  
Ducted Fan

Flutter of an Aircraft Controlled by an Automatic Navigation System

1961 ◽  
Vol 65 (604) ◽  
pp. 267-272 ◽  
Author(s):  
P. C. Parks
Keyword(s):  
Navigation System ◽  
Normal Modes ◽  
Control Surface ◽  
Navigation Systems ◽  
Aircraft Structure ◽  
Automatic Navigation ◽  
Modes Of Vibration ◽  
Control Surfaces

Automatic navigation systems for aircraft often use gyroscopes to measure the changes in the direction of motion of the aircraft they are controlling. These measurements are fed back to the mechanisms moving the control surfaces of the aircraft.Such a system is usually designed, in the first instance, assuming the aircraft structure to be rigid and such that the system is then stable.Now suppose the aircraft structure, considered elastic, is disturbed in flight by, say, a gust. Normal modes of vibration of the structure will be excited, the resulting oscillations will be detected by the gyroscope and fed as error signals to the control surface actuators. If the actuators are capable of following these error signals, the control surfaces will also oscillate, exciting the structure further and so completing the cycle. This cycle may be unstable.

Characterization of carbides in M50NiL

1991 ◽  
Vol 49 ◽  
pp. 606-607
Author(s):  
L. S. Lin ◽  
K. P. Gumz ◽  
A. V. Karg ◽  
C. C. Law
Keyword(s):  
Temperature Effects ◽  
Base Composition ◽  
Lattice Parameter ◽  
Control Surface ◽  
Carbide Formation ◽  
Particle Sizes ◽  
Low Carbon ◽  
Fee Structure ◽  
Heat Treated

Carbon and temperature effects on carbide formation in the carburized zone of M50NiL are of great importance because they can be used to control surface properties of bearings. A series of homogeneous alloys (with M50NiL as base composition) containing various levels of carbon in the range of 0.15% to 1.5% (in wt.%) and heat treated at temperatures between 650°C to 1100°C were selected for characterizations. Eleven samples were chosen for carbide characterization and chemical analysis and their identifications are listed in Table 1.Five different carbides consisting of M6C, M2C, M7C3 and M23C6 were found in all eleven samples examined as shown in Table 1. M6C carbides (with least carbon) were found to be the major carbide in low carbon alloys (<0.3% C) and their amounts decreased as the carbon content increased. In sample C (0.3% C), most particles (95%) encountered were M6C carbide with a particle sizes range between 0.05 to 0.25 um. The M6C carbide are enriched in both Mo and Fe and have a fee structure with lattice parameter a=1.105 nm (Figure 1).

A Novel Technique for Tailoring Frontal Osteoplastic Flaps Using the ENT Magnetic Navigation System

2012 ◽  
Vol 73 (S 02) ◽  
Author(s):  
L. Volpi ◽  
A. Pistochini ◽  
M. Turri-Zanoni ◽  
F. Meloni ◽  
M. Bignami ◽  
...  
Keyword(s):  
Navigation System ◽  
Magnetic Navigation ◽  
Novel Technique
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