/ 44 SIMULATION SOLUTIONS Vehicle System Injection Nozzle Flow, Cavitation and Erosion Combustion and Emissions Turbocharging Exhaust Gas Aftertreatment Transmission and Driveline Durability and NVH Electrification Thermal Management and Aerodynamics Calibration and Testing Quenching TEST SYSTEM SOLUTIONS TESTING EQUIPMENT SIMULATION TOOLS TESTING TOOLS CUSTOMER SERVICES Durability and NVH Four cylinder inline engine – friction in lubricated cranktrain contacts Valve train and timing drive dynamics AVL EXCITE has been chosen by the majority of engine manufacturers worldwide as their main platform for strength, durability and NVH simulations of power units. This makes it the leading software on the market for durability analyses of engine components, valve train and timing drive dynamics, tribological analyses of lubricated engine contact points, cylinder kit design and NVH optimization. REAL LIFE CONDITIONS FOR PRECISE RESULTS AVL EXCITE calculates complex dynamic models considerably faster than multipurpose tools. Short turnaround times are achieved by robust and optimized solvers even with complex models. The accurate consideration of non-linearities in lubricated engine contact points provides results which are similar to real life. Outstanding elastohydrodynamic (EHD) contact models for slider bearings and piston/piston ring liner contact facilitate detailed investigations of contact behavior, including the calculation of friction and wear. In this way the simulation assists the engineer in making the right design decisions efficiently and facilitates a significant reduction costly testing. POWERTRAIN ORIENTED SOLUTION Powertrain-analysis-specific workflows and automated model generation as well as result evaluation capabilities help the engineer to achieve short project lead times. For example, AVL EXCITE AutoSHAFT is a significant time saver for crankshaft model generation. Based on files from CAD, a dynamic crankshaft model can be generated within hours. AVL EXCITE calculates transient engine run-up and in-stationary conditions without relying on unrealistic speed steps. In this way, critical operating conditions can be detected reliably without the time-consuming interpretation of incomplete results.
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