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CAEeda T M Computer Aided Engineering Design and Analysis Software EDA Engineering Design and Analysis

CAEeda TM computer aided engineering design and analysis software package CAEeda TM is a Computer Aided Engineering Design and Analysis software package designed for most Aerospace, Mechanical, Automotive, Naval Architectural and Civil Engineering applications. Thanks to its capabilities that range from simplified engineering tools for conceptual phase of a design to more advanced tools such as topology and shape optimiza- tions in the final stage all, CAEeda TM is a complete package for engineering design from conceptual to final phases without need for another major tool. TM As a sophisticated design and analysis tool, CAEeda provides an integrated solu- tion for all the following steps of part or product design: 1. Geometric / solid modeling of parts or products to be designed 2. Generation of computational meshes for analysis 3. Computations for performance under external effects 4. Visualization of results 5. Optimization for better performance Its user-friendly graphical interface, which can be easily learned and used, is appro- priate for parallel computing across multiple processors and reduces human labor. This way, it does not depend on any third party software. By using Linux operating system, it is also independent of any kind of proprietary operating system, under fully secure environment. engineering design & analysis 1 www.eda-ltd.com.tr

CAEeda TM TM Presently CAEeda has the following modules : CAEeda TM TM Geometry Module (CADeda) Mesh Generation Module (MESHeda ) Pre-Process Module (PREeda) Post-process Module (POSTeda) TM Flow Analysis Module (FAPeda ) Flight Mechanics Module (6DOF) TM Structural Analysis Module (SAPeda ) Ballsitics Module (BALLISTICeda) Thermal Analysis Module (TAPeda) Panel Method Module (PANELeda) Interactive Multiphysics Module Burnback Module (BURNBACKeda) Optimization Module (OPeda) Parallel Coupling Program (Search Interpolation-SINeda) Each module that is verified with international standard test-cases has been put at the disposal of civil and defense industry. engineering design & analysis 2 www.eda-ltd.com.tr

CAEeda TM Geometry module (CADeda) CADeda Major Features Executes the following processes easily: Allows to obtain measurements from geometries including: · Cutting · Extending · Sweeping · Joining · Offsetting · Lofting · Angle · Radius of gyration · Length · Radius of curvature · Intersecting · Extruding · Translating · Area · Tangent vectors of surfaces · Trimming · Revolving · Scaling · Volume · Normal vectors of surfaces Import and exports geometric models in formats: · Center of geometry · Mark point · Moment of inertia · Vectors · IGES · STEP · BREP · STL Provides quick, easy and precise methods to select geometric components using rectangle, circle and polygon. Has dynamic clipping and \"show selection only\" features to examine inner details of complex geometries Allows interaction with other solution software Has a selective auto-save feature Has an interactive and instructive user manual Maintains continuity of working on repetitive operations Has a useful icon binding and key binding features Makes 2D and 3D sizing Has advanced tools and a rich model catalog Creates parametric NACA airfoils quickly. Maintains safe working by \"preview & cross check\" method Has a recovery capability in the case of computer crashes Creates parametric solid models (missile, wing geometries, etc.) quickly and can be customized with respect to user de- mand. Shows the topologic hierarchic chart of the geometry (volume, surface, edge, corner relations) on a separate window, which constitutes an interaction with the labeled model. Creates a solid model of 3D complex wing parametrically and automatically with any dimensions in a very short time, and modifies it in interaction with aerodynamic and structural optimization algorithms Can import pictures for texturing the model surface and allows drawing on it. Has a selective and customizable multilingual graphical user interface. Allows to export raster (bmp, jpeg, gif) and vector (ps, pdf, swg) type plots. Determines the geometric defects and absences easily and repairs by using tolerance value. Allows to emulate radiation with respect to material properties (emissivity, diffusivity, shininess and ambient parameters). Has useful management system consisting of four internal library modules including part, geometry-helper, finite- engineering design & analysis 3 www.eda-ltd.com.tr

CAEeda TM Mesh generation module TM (MESHeda ) TM MESHeda Major Features - 1 3D Unstructured Mesh Generator · Parametric unstructured mesh generation · Surface remeshing by quality mesh generation 3D Structured Mesh Generator · Algebraic mesh generation · Controllable Elliptic mesh generation (attraction and contraction by Poisson equation) 3D Prismatic Mesh Generator by Advancing Layer method · Tetrahedral elements · Wedge elements · Hexahedral elements Imports and exports meshes in widely used formats · STL · FLUENT · FASTRAN · MEDIT · TECPLOT · GAMBIT · I-DEAS UNV · Vgrid3D Imports / exports / generates tetrahedral, hexahedral, wedge type, pyramidal, quadrilateral, triangular, line elements & nonlinear FEM elements Can save detailed mesh data structure in a CAEeda TM edf file Generates mesh on parametric surfaces using patches of the CAD model Generates mesh from given point cloud Can smooth, coarsen, refine and qualify surface and volume mesh without damaging the model ge- ometry Generates volume mesh from surface mesh by extruding or rotating Has dynamic clipping and \"show selection only\" features to examine inner details of complex meshes Can translate, rotate and take the symmetry of the models Can generate qualified unstructured mesh by means of comprehensive mesh control utilities by defin- ing variable global and local element lengths, inserting extra nodes automatically, using control points, engineering design & analysis 4 www.eda-ltd.com.tr

CAEeda TM Mesh generation module TM (MESHeda ) TM MESHeda Major Features - 2 Can perform merge, scale, delete, copy and regenerate the mesh operations Can renumber the entire mesh with respect to surface normal vectors or bandwidth optimization Can conform the entire mesh with respect to moving boundaries using dynamic mesh deforming algorithm Can automatically adapt the mesh locally or globally with respect to solution by enriching, refining, coarsening, attracting and contracting nodes Can work with other solvers synchronously Can generate boundary layer mesh which includes tetrahedral, hexahedral or wedge type elements using \"Advancing Layer Method\" Reports necessary mesh quality information statistically or lists, saves and highlights mesh compo- nents (volume, surface, line elements and nodes) which do not obey predefined quality criteria like : length, area, volume, aspect ratio, stretch, skewness, distortion, etc. Finds and corrects automatically coincident nodes, free edges and faces, direction of normal vectors engineering design & analysis 5 www.eda-ltd.com.tr

CAEeda TM Pre-process module (PREeda) PREeda Major Features Creates zones and groups based on the optional selection of mesh elements. Applies merging, splitting, deleting and re-creating on available groups and zones. Creates zones and groups automatically based on adjacency, normal angle range, color, type of elements and geometry. Designates the material and boundary conditions for the element zones. Determines moving and stationary zones for which motion constrains are defined. Defines motion equations for moving zones. Defines new and dedicated boundary conditions, materials and physical properties. Partitions tetrahedron mesh into overlaped or non-overlaped ones for the use of parallel solvers. Makes quick search for nodes. Finds the minimum distance among the nodes, shell and volume elements. engineering design & analysis 6 www.eda-ltd.com.tr

CAEeda TM Post-process module (POSTeda) POSTeda Major Features Views the results of solutions obtained from any kind of mesh, one of whom is TECPLOT. Creates new solution variables from the equations consisting of user-defined constants and vari- ables. Draws surface contour lines that are colorized in one color or value based. Draws volume contour surfaces that are colorized in one color or value based. Hides the contours of undesired values. Extracts the elements of mesh depending on contours. Draws the vectors of physical properties, which are colorized in one color or value based. Provides graphical representations of the functions and data information, which can be exported in vectoral formats (ps, pdf, svg, dxf). Manages 2D drawings in user demands and commits them to paper. Makes data extraction and draws its interchange graphics. Digitizes the pictures. Obtains the force distribution from calculated pressure values, which can be drawn and exported. Allows mesh deformation and displacement. engineering design & analysis 7 www.eda-ltd.com.tr

CAEeda TM Flow analysis module TM (FAPeda ) FAPedaTM (Flow Analysis Program for Engineering Design & Analysis) is a com- puter code which has been developed by EDA Ltd. Co. to solve steady and un- steady internal and external flow problems. It is a very fast and reliable flow analysis program by its parallel computing capability and implicit time integration feature. Relative coordinates and ALE formulation with dynamic deforming mesh algorithms make it a powerful tool for moving boundary problems. It can be used for store separation and rotary fluid machinery problems. TM FAPeda Major Features Spatial Integration: Time Integration: · Tetrahedral volume centered finite volume method · Explicit : Runge - Kutta · Implicit : Backwards Euler Upwind: Flux Limiters: · Roe Flux differences (Flux difference) · Van-Albada · Minmod · Van - Leer flux vector (Flux splitting) · Muscl-differencing Parallel Computing: Turbulence: · Domain decomposition · Spalart Almaras · MPI (Message Passing Interface) · Wall– function Moving Boundary Solutions · ALE (Arbitrary Lagrangian Eulerian) Formulation · Relative coordinate formulation · Geometric conservation · Diynamically adaptive grid · Sliding grid · Integrated 6DOF solver · Dynamic overset mesh · Dynamic mesh blanking · Dynamic locally mesh controlling-repairing-generating · Dual time integration for time accuracy engineering design & analysis 8 www.eda-ltd.com.tr

CAEeda TM Flow analysis module TM (FAPeda ) Advantages: Quick steady state solutions due to implicit integration feature (CFL=200, 30- · 50 iterations) Large time increment capability due to implicit integration feature · Accurate viscous solutions even if using small number of elements including · unstructured high aspect ratio tetrahedrons (AR=1/12000) and few elements near the wall. Precision (Verified with experimental results) · For even huge mesh, very low cost and quick solution due to its parallel solu- · tion capability on PC clusters Parallel efficiency has been successfully tested on the worlds largest grid sys- · tem (TERAGRID) Customization on demand · Some Sample Applications External store carriage and release (store separation) · Flow around an airplane (including rotary parts or jet engine) · Flow around a missile (including spinning and pitching) · Flow around a helicopter (including rotary parts) · Turbine Flow (rotary, tip clearance, compressor interference) · Compressor Flow · Dynamic damping coefficient calculations · Flow around a car · Pump flow · Wind turbines · engineering design & analysis 9 www.eda-ltd.com.tr

CAEeda TM Structural analysis module TM (SAPeda ) TM SAPeda Major Features Types of analysis · Static · Dynamic Element types · Frequency · Contact · 8 noded brick · 15 noded wedge · Buckling · Impact · 20 noded brick · 6 noded shell · Aeroelasticity (Static & Dynamic) · Modal · 4 noded tetrahedral · 8 noded shell Materials · 10 noded tetrahedral · 3 noded beam · 6 noded wedge · 2 noded 3D spring · Linear elastic · Deformation plastic · Viscoplastic engineering design & analysis 10 www.eda-

CAEeda TM Fluid-structure interaction module (FSIeda) FSIeda is a software developed by EDA Ltd. Co. for solving Fluid Solid interaction TM problems and flutter analysis of structures. FSIeda uses FAPeda for flow analysis, TM SAPeda for solid mechanics analysis in a coupled manner and for parallel cou- pling SINeda interface is utilized. FSIeda Major Features Static and dynamic aeroelasticity solutions Loosely coupled · Flutter Analysis · Direct Integration · Mod Superposition Time Integral CSD : SAPeda TM · CFD (flow) : Implicit · CSD (solid) : Implicit TM CFD : FAPeda Parallel Computing Fluid-Solid Data Transfer Interface Program: SINeda · CFD: Parallel · CSD: Non-parallel engineering design & analysis 11 www.eda-ltd.com.tr

CAEeda TM Fluid-structure interaction module (FSIeda) Avantages: All software belong to EDA Ltd. Co. and no need for additional software. · Fluid-Solid Data Transfer interface does not require license and additional · software. Precision (verified with experimental results) · For even very large grids, very low cost and quick solution due to its parallel · solution capability on PC clusters Customization on demand · Low cost · Some Sample Applications Airplane wing flutter analysis · Airplane wing static aeroelasticity analysis · engineering design & analysis 12 www.eda-ltd.com.tr

CAEeda TM Search and Interpolation module (SINeda) Parallel mesh coupling library SINeda has been developed by EDA Ltd. Co. for coupling fluid and structure codes on parallel clusters. It allows the coupling of multidisciplinary codes which may be maintained by different developers without the need to have access to source codes of individual disciplines. SINeda Major Features 3D fast search capability 3D fast and precise interpolation 3D precision projection Suitable for Parallel Computing (MPI) Suitable for Grid Computing Ease of use (Suitable for Inter-grid data exchange) engineering design & analysis 13 www.eda-ltd.com.tr

CAEeda TM Ballistics module (BALLISTICeda) BALLISTICeda is a computer program developed by EDA Ltd. in the collaboration with MKEK for the purposes of design and analysis of missiles and projectiles. It includes parametric 3D-solid model geometry, interior ballistics, exterior ballistics and flight mechanics modules. BALLISTICeda Major Features Geometric Design Capabilities Parametric 3D Geometry Creation: · Nose (Ogive (tangent ve secant), Cone, Ellipse, Power series, Truncated, Hollow) · Body (Cylinder, Transition, Boat-tail, Flair, Groove, Rotating Band, User defined arbitrary rotational curve, Hollow) · Wing & Fin (Rectangular cross-section, Arc cross-section, Wedge cross-section, NACA series cross-section, Automatic sweep, tilt and skew angle adjustment, Automatic fin location (axial and rotational position), Cracked wing creation, Complex wing geometry creation) · Barrel & Launcher Rifled bore, Combustion chamber, Breech, Shoulder, Forcing cone · Automatic component build up · Calculating mass and intertial properties · Adding-removing and copying pasting components TM Sending 3D model to CAEeda CAD module Export designed 3D model as step, iges, brep automatically and stl formats Calculating mass and intertial properties Add-on and user-specified material properties Aerodynamic Calculation Capabilities Aerodynamic solver of BALLISTICeda uses component buildup method to find overall aerodynamic loads acting on a projectile or missile. Aerodynamic characteristics of major components such as wings, body and tails are calculated by using linear theory and/or slender body theory are summed by considering component specific weighting interference factors. Some semi empirical formulations based on experimental data base may also be utilized. Aerodynamic force and moment coefficients based on body axis (CA, CY, CN, CX, Cy, Cz) and (CD, CY, CL, Cx, Cy, Cz) Static derivative Dynamic derivatives engineering design & analysis 14 www.eda-ltd.com.tr

CAEeda TM Flight Mechanics Calculation Capabilities 6DOF trajectory simulation 4DOF trajectory simulation Static stability calculations Gyroscopic and dynamic stability Wind effects (fixed or variable) Standard atmosphere model Meteorological input User defined propulsion input Dispersion analysis Animated 3D flight path and projectile motion using 3d solid model Firing table preparation Hit target analysis for moving and stationary targets Drag calculation using trajectory data obtained by radar Interior Ballistics Calculation Capabilities 1-D thermodynamic interior ballistic model with Propellant grain types : Ball, strip, cylinder, single- global parameters for Interior ballistic cycle trajectory perforated cylinder, seven-perforated cylinder, nineteen- simulation of projectiles. perforated cylinder, nineteen-perforated hexagon Bullet motion simulation in rifled bore Calculation of resistance pressure and band wear Calculation of thermodynamics and gas dynamics User upgradeable propellant material catalog properties Structural strength analysis based on \"mono-block and multilayered thin wall structures Calculation of interior ballistic fitting factors with respect to maximum chamber pressure, muzzle velocity, propelling charge and propellant temperature. Time dependent calculations (base and breach pressure, gas and wall temperature, projectile velocity, acceleration, spin and travel, total energy and detailed energy losses Post Processing Capabilities Tabulated solution results of aerodynamics and Allows plotting xy graphs of variables whose tabulated flight mechnanics modules are automatically sent to values given by a file or defined by mathematical the post processing module functions Offers a wide range of control options to achieve Allows user to define new variables from combination of publishable-quality xy graphics other variables 3D-xyz plotting Exports raster (bmp, jpeg,gif) and vectoral (ps, pdf, swg) Data extraction Create and save plot as animation Data digitizing from picture engineering design & analysis 15 www.eda-ltd.com.tr

CAEeda TM Other capabilities Other FEM Analysis Lubrication Heat transfer · Conduction Open channel turbulence flow · Convection · Radiation Irrotational incompressible inviscid flow Acoustics Electrostatics Aerodynamic and hydro-dynamic network Shallow water motion Subsurface flow Diffusion Flight Simulation Module 2DOF, 3DOF, 6DOF Aerdynamics, impulsion, inertia modules Environment modules: world, atmosphere, wind Input : table, interaction with the other modules Empiric, Semi-Empiric and Aerodynamic Solver Module Linear aerodynamics Slender body and wing teory PANELeda - Aerodynamic analysis module (using panel method) BURNBACKeda - Burnback module for a rocket engine Other Features GUI that can be customized Auto-save capability Undo/Redo applications for geometry, mesh, ect Short-cut icons for geometry, mesh and view ac- actions tions frequently used Linux operating system (32bit and 64 bit) Multi-language support engineering design & analysis 16 www.eda-ltd.com.tr

www.eda-ltd.com.tr Silicon Block No:22 METU Technopolis 06800 ANKARA Tel: +90 (312) 210 1991, Faks: +90(312) 210 1991 [email protected]