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All Journal ROTOR: JURNAL ILMIAH TEKNIK MESIN
Gaguk J atisukamto
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Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISIS KESTABILAN AERODINAMIKA PADA RUDDER PESAWAT TERBANG N2XX PADA KONDISI LEFT ENGINE INOPERATIF (LEI) Exwan Rahmawan; Gaguk J atisukamto
ROTOR 2017: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.133 KB) | DOI: 10.19184/rotor.v0i0.7705

Abstract

Airplane stability is required when the aircraft has a left engine in operative (LEI). LEI is the condition of the left engine part of the aircraft not functioning when flying or taking off. The LEI can be anticipated by using a rudder as support. The purpose of this study was to determine the aerodynamic characteristics of the rudder. The research methodology is by rudder aerodynamic analysis using Datcom digital software simulation. The simulation input data consists of: coefficient of yowing deflection of debt (CNDR) = -0.0022889 / deg, and Vertical Volume (Vv) = 0.0830. Previous tests used VV = 0.79 and then VV = 0.83. The results showed that the number Vv = 0.83 was more stable compared to Vv = 0.79. The research conclusions are that if the plane experiences an LEI, then the stability of the rudder is conditioned as follows: Vv = 0.083, CNDR = -0.0022889 / degree, lift coefficient CL = 1.8837 and angle of attack (α) = 8.3277. Keywords: Left engine in operative, vertical volume, Digital Datcom, Angle of attack
ANALISIS PENGARUH VANE TERHADAP KARAKTERISTIK DOUBLE SLOTTED FLAP PESAWAT N2XX DENGAN METODE SIMULASI COMPUTATIONAL FLUID DYNAMIC Mirna Sari; Gaguk J atisukamto; Gembong Djoni Putranto
ROTOR 2017: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.85 KB) | DOI: 10.19184/rotor.v0i0.7699

Abstract

The stability of an airplane is influenced by aerodynamic characteristics, one of which is the lift coefficient (C). The value C is the ratio between the lift force (L) and the dynamic pressure (q). The value of C is determined based on the design of the airfoil shape and the use of the type of flap. The increase in C from the previous study using the simulation method obtained 20.4% with the addition of a flap. This study aims to simulate folds by adding vane (double slotted flap). The methodology in the study uses a simulation of Computational Fluid Dynamic (CFD). The research results of airfoils with the blade having a maximum C of 35.99% are higher than airfoil designs without vane, or 5.77 and 5.61 respectively. The maximum C value of an airfoil with vane or airfoil without using blade occurs at the angle of attack (α) = 16o. The research conclusion informs that vane influences the characteristics of the N2XX aircraft. Vane can minimize the occurrence of a stall (decrease in the value of C) of airplanes in take-off and landing conditions. Keywords: C, vane, double slotted flap, airfoil
Co-Authors Exwan Rahmawan Gembong Djoni Putranto Mirna Sari