Bolted or riveted airframe assemblies are typically modeled as continuous meshes. But advances in meshing and solver technology are changing the way we model these assembly structures. Today, continuous meshes are often replaced by individually meshed parts joined together by some type of connector or interaction definition. These individually meshed parts are typically joined together …
As simulation becomes more embedded in the overall product development process, it becomes important to establish a consistent model build process. An organization can be confident in using simulation results throughout the development lifecycle only if a mature and consistent process is implemented to create the simulation models. The objective of a consistent model build …
Tough new noise standards, increasing pressure to innovate, and the expectation for shorter time to market without compromising quality and affordability are just a few of the challenges that acoustic engineers from every industry are facing today. Automotive engineers are faced with the demand from consumers to create lightweight vehicles, which creates obstacles for controlling …
Simulation and analysis, or Computer Aided Engineering (CAE), enables engineers and organizations to analyze and explore new packaging processes and methods in a virtual environment, reducing the time and cost requirements associated with physical and experimental testing. For over 40 years, product manufacturers in transportation industries have relied on computer simulations as a means to …
Question: Given an assembly, such as the rotor mechanism shown below, how can one determine the stresses and potential failure modes? Answer: Nonlinear FEA available in MSC Nastran can be used for structural analysis to assess the behavior of contacting rotor mechanisms. This presentation Contact Model of Rotor Components provides additional details on how to model …
The complexity of composites vs. traditional metallic materials has forced aerospace manufacturers to complete 7-20x more tests than before across all levels of the validation pyramid. With smaller tests costing around $1k-$5K, and the larger tests costing up to $1M-$3M, a significant barrier has been presented in terms of cost and time to validate their …
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