Computer-Aided Engineering
Download as PPTX, PDF13 likes10,398 views
Computer-aided engineering (CAE) uses computer software to analyze product designs and improve engineering processes. It allows engineers to evaluate designs through simulation rather than physical testing, saving time and money. The goals of CAE include improved product quality and safety, reduced engineering time through fewer design iterations, and reduced costs. Common CAE applications include finite element analysis, mechanism analysis, and fluid dynamics simulation. CAE provides significant benefits to production such as earlier problem identification and reduced warranty exposure.
Computer-Aided Engineering
- 2. Introduction and Definitions Computer-Aided Engineering is the use of computer software to solve engineering problems with the improvement of graphics displays, engineering workstations, and graphics standards. Computer-aided design (CAD) is the use of computers in converting the initial idea for a product into a detailed engineering design. This typically involves the creation of geometric models of the product, which can be manipulated, analyzed, and refined. In CAD, computer graphics replace the sketches and engineering drawings traditionally used to visualize products and communicate design information (Concise Encyclopedia of Engineering, 2002). Engineers also use computer programs to estimate the performance and cost of design prototypes and to calculate the optimal values for design parameters. When combined with CAD, these automated analysis and optimization capabilities are called computer-aided engineering (CAE) (Concise Encyclopedia of Engineering, 2002).
- 3. Introduction and Definitions (Contd) A typical CAE software is made up of a number of mathematical models encoded by algorithms written in a programming language. The natural phenomena being analyzed are represented by an engineering model. The physical configuration is described by a geometric model. The results, together with the geometry, are made visible via a user interface on the display device and a rendering model (graphics image) (Bøhn & Myklebust).
- 4. Goals of CAE The goals of computer-aided engineering (CAE) include (MacKrell & Herzog): Improved product quality and safety Reduced engineering time, achieved through fewer design iterations Improved product functionality and usability Reduced number of prototypes, ultimately leading to their elimination in many cases Reduced product cost
- 5. Types of CAE Applications NX is a suite of integrated, fully associative CAD/CAM/CAE applications. NX simulation applications include dynamic motion simulation, linear and nonlinear stress analysis, system-level performance simulation, dynamic response simulation, vibration analysis, fluid flow and thermal analyses, durability analysis, multi- physics engineering analysis, and analysis to physical test correlation. Femap is a CAD-independent, Windows-native pre- and post- processor for advanced engineering FEA. It provides engineers and analysts with an FEA modelling solution to handle even the most complex tasks easily, accurately and affordably.
- 6. Scenarios and Applications of CAE Mechanical Engineering 1. Finite Element Analysis (FEA): Structural analysis of a component’s behaviour under various kinds of applied loads and supports e.g. Beam and Grid structures. Thermal analysis of a structure’s behaviour when it is subjected to heating and cooling. Combined structural and thermal analysis. Fluid mechanics analysis of the flow of fluids, such as air, water, and lubricants around the surfaces of an object. Pressure, fluid velocity, and other factors can be determined
- 7. Scenarios and Applications of CAE (Contd) Mechanical Engineering 2. Mechanism Analysis: Mechanism analysis studies the behaviour of mechanical systems undergoing motion. Typically, the geometry, mass, inertia, compliance, stiffness, and damping of the system’s components as well as the forces and loads applied from outside the system must be defined. Equations of motion are developed and solved. The results of the analysis may include positions, velocities, accelerations, forces (applied, reactive, and inertial), determination of equilibrium positions, and other computed parameters.
- 8. Scenarios and Applications of CAE (Contd)
- 9. Scenarios and Applications of CAE (Contd)
- 10. Scenarios and Applications of CAE (Contd) Civil Engineering Most surveying functions, such as triangulation and elevation computations, are now computerized, with data being collected in computer form in the field via electronic instruments. Map making and analysis are also largely computerized nowadays. Electrical and Electronics Engineering Many electrical applications outside the tools discussed make use of specialized tools for control system design and simulations. CAE aids engineers in testing simulated designs for control systems or other electronic devices to see how they operate before committing to manufacturing. In most cases, the computer simulation replaces altogether the building of a prototype.
- 11. Significance of CAE in Production The benefits of CAE include reduced product development cost and time, with improved product quality and durability (CAE / Computer-Aided Engineering, 2012). Design decisions can be made based on their impact on performance. Designs can be evaluated and refined using computer simulations rather than physical prototype testing, saving money and time. CAE can provide performance insights earlier in the development process, when design changes are less expensive to make. CAE helps engineering teams manage risk and understand the performance implications, product behaviours and problems of their designs before it is put into production.
- 12. Significance of CAE in Production (Contd) CAE helps engineering teams manage risk and understand the performance implications, product behaviours and problems of their designs before it is put into production. Integrated CAE data and process management extends the ability to effectively leverage performance insights and improve designs to a broader community. Warranty exposure is reduced by identifying and eliminating potential problems. When properly integrated into product and manufacturing development, CAE can enable earlier problem resolution, which can dramatically reduce the costs associated with the product lifecycle.
- 13. Conclusion Leveraging the power of Technology in various sectors of the economy has always helped in improving the systems and business processes. he involvement of computer systems in engineering processes has redefined and will continue to improve engineering functions.
- 14. References Bøhn, J. H., & Myklebust, A. (n.d.). Computer-Aided Engineering. 549-554. CAE / Computer-Aided Engineering. (2012). Retrieved April 15, 2012, from Product Life Cycle Management Incorporated: http://www.siemens.com Concise Encyclopedia of Engineering. (2002). Computer-Aided Design and Manufacturing . McGraw-Hill. MacKrell, J., & Herzog, B. (n.d.). Computer-Aided Engineering (CAE). 274-278.