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Unformatted text preview: e and size of elements, in- and compatible meshes and the use of contact points have minor impact on the simulation result. 1.4. Scope of the paper In practice, variation simulation methods are difficult to use due to practical implications. The aim of this paper is to illustrate some of these implications and modeling aspects related to sheet metal assembly variation analysis. The tolerance analysis and validation will be done by analyzing a real sheet metal assembly with the accessible production inspection data that is used to monitor the process. The aim is to analyze how consistent the result from the tolerance analysis can be with the inspection data. 2. VARIATION SIMULATION OF SHEET METAL ASSEMBLIES One way of performing variation simulation of sheet metal assemblies is to use Direct Monte Carlo simulation. This method uses inspection data or a random number generator that produces the desired distributions for the position and part variation. Part variation is simulated by applying a displacement in the inspection points. New part geometry is calculated by FEA. The parts are then joined together by either applying...
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

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