From the course: SOLIDWORKS Simulation: Dynamic Analysis
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Background to dynamics - SOLIDWORKS Tutorial
From the course: SOLIDWORKS Simulation: Dynamic Analysis
Background to dynamics
- [Instructor] Let's take a look at the background to the course. Now why are we doing Dynamic FE Analysis? And that's a very good question. Many real-world structures are subjected to some kind of external dynamic loading environment. If we think of close to home, a washing machine can experience severe shaking if we distribute the wash load badly. An air-conditioning unit can be very noisy with annoying hums and rattles. More specialized cases can include, a building shaking during an earthquake, or flying in a helicopter that's top speed and the vibrations can be very unpleasant in that case. Now why do Dynamic FEA? Finite Element Analysis simulations can help design in all these cases by predicting the structural response. What are the critical spin speeds for the washing machine? What is the worse case wash load and its distribution? What are the peak stresses in the bolts attaching the chasse What is the bearing fatigue life under random usage? Things we need to know when we do…
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Contents
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Background to dynamics2m 24s
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Introduction to normal modes analysis3m 45s
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A basic example: Building and running5m 27s
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A basic example: Post-processing12m 25s
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Mass and stiffness modeling in dynamics5m 56s
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Use distributed mass6m 50s
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Use lumped mass9m 7s
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Rigid body modes7m 21s
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Pre-stiffened normal modes2m 12s
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Pre-stiffened blade7m 1s
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