INTRODUCTION
MYCAS DOA has been established in 2009 and granted the DOA approval from the Department of Civil Aviation Malaysia in 2012 with approval number DOA/2012/08. Our services cover a broad field of services to fulfill all demands of our customers. With our outstanding aviation design engineering experience and our background, we serve you with customized solutions from the design study to the release of approved data.
MYCAS provides engineering services in the design and analysis of airframe structure, auxiliary equipment, and dynamic systems for rotor and fixed-wing aircraft. MYCAS has skilled engineers in each of the disciplines that will meet your technical needs along with an excellent cost benefit. Our projects include single and multi-engine propeller and jet powered aircraft.
AIRCRAFT DESIGN AND ANALYSIS
MYCAS utilizes the latest software applications including CATIA, Solidworks and Unigraphics. From simple 2D drafting to the creation of complex 3D parametric models, we provide comprehensive CAD design. Additionally, we provide extensive support for Mass Properties, CAD Conversion, and Geometric Dimensioning and Toleranceing.
We begin every project with a careful review of objectives and existing data and then offer an assessment that includes project cost projection and time line. Our engineers can use your conceptual sketches and specifications to produce a complete design and when you need a review of an existing design, we will analyze your design and provide you a documented projection of performance and cost of your aircraft vehicle and perform a detailed comparative analysis.
AERODYNAMICS DESIGN AND ANALYSIS
MYCAS utilizes the latest software applications including CATIA, Solidworks and Unigraphics. From simple 2D drafting to the creation of complex 3D parametric models, we provide comprehensive CAD design. Additionally, we provide extensive support for Mass Properties, CAD Conversion, and Geometric Dimensioning and ToleranceingMYCAS Design engineers can perform detailed aerodynamic analysis on any flight vehicles using our experience and several Computational Fluid Dynamics (CFD) packages. These CFD packages are used to simulate the air flow around aircraft and how the fluid interacts with the aircraft surfaces for any type of aircraft configuration. Coupled with our Advanced Aircraft Analysis software, the CFD results aid in aerodynamic and stability & control analysis for conventional and unconventional types of aircraft..
Using these CFD packages, we can also analyze and optimize airfoils to provide the optimal lift, drag, moments and pressure distribution for aircraft lifting surfaces such as wings, horizontal tails, vertical tails, canards and V-tails. The analytical methods used on wings and other lifting surfaces can be extended to blade analysis for rotors, including propellers, helicopters and wind turbine rotors. Based on Blade Element Momentum (BEM) theory, we further developed and customized our software for initial aerodynamic design of propeller/fan blades that can handle unconventional blade shape. Using CFD to simulate rotation, we can quantify the full thrust curve of the propeller/fan. The pressure distribution over the blades is extracted from CFD and torque (and thus energy) curves are constructed. Using our own BEM software, we can design propellers/fans to maximize thrust and efficiency.
The pressure distributions obtained from the CFD analyses are also used in the structural design and analysis of the flight vehicles or blades. Based on the aerodynamic design, a wind tunnel model can be designed, constructed and tested. CFD simulation techniques can also apply to engine inlet design and engine duct flow behavior prediction.
STRUCTURAL DESIGN AND ANALYSIS
Finite Element Analysis (FEA), coupled with analytical methods when necessary, is used to carry out multiple types of structural analyses including strength, stiffness, elastic stability, dynamic modes and responses (vibration suppression), fatigue, flutter, crash/impact, etc. Structural analysis software is used to model and analyze the structure, which can be made of metals (steel, aluminum, etc.), composites (glass, carbon, etc.) or any combination of metals and composites as well as bonded and fastened joints.
Pressure distributions, experimental or analytical, are mapped to the structural model to account for the aerodynamic loads. Inertial and thermal loads are also included in the FEA modeling and most load cases are based on LSA, U.S. Experimental Category, FAR 23, FAR 25 and U.S. MIL SPEC requirements.
Results such as stresses, deformations, buckling factors, natural frequencies, flutter speeds, impact forces etc. are compared against possible failure modes to ensure the structural integrity. The structural analysis yields selection of materials, material thicknesses, composite layup schedule and produces an optimized structural configuration.
Coupled with fatigue analysis, the structural service life is ensured. Detailed 3D CAD models and manufacturing drawings of the structural components can then be generated and used for parts production, assembly and quality control.
STRUCTURAL REVIEW
Upon review of many existing airplane designs, MYCAS engineers have discovered serious problems with longitudinal and lateral stability of the airplane. Other airplanes had serious stall and spin recovery issues.
All of these problems were due to insufficient analysis in the initial design stage. We have also observed structural design, analysis and manufacturing methods that did not meet the rigorous standards demanded by fight vehicles. The outcome was airplanes with serious weight and balance issues and structural defects.
All of these problems could have been avoided if adequate engineering had been performed prior to fabrication and if the prototypes were built according to the appropriate flight vehicle standards.
AVIONICS
MYCAS design engineering team has designed and qualified high reliability electronic component designs for the military/civil avionics and sea/land defense systems. Our Avionics experience is aligned with our customers' systems, with specializations in flight management systems and the computer systems that support it: navigation systems, flight recorders, data transfer, health and usage, compass attitude, heading reference and supporting systems.