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Vibration Analysis of Panel at Steady State in Dynamic Frequency Range 1-151 Hz

This study analyzes vibration of a panel with varying wall thicknesses at steady state within the dynamic frequency range of 1 to 151 Hz. Different scenarios and modes are investigated to determine optimal element lengths and sound pressure levels at field points.

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Vibration Analysis of Panel at Steady State in Dynamic Frequency Range 1-151 Hz

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  1. Vibration Box PanelSteady State Dynamic Z Frequency Range 1 to 151 Hz Constant amplitude 1unit X SIX panel with different wall thicknesses Y

  2. SCENARIOS 1 2 3 4 5 #Modes Used 100 200 236 300 500 Maximum Hz 54 114 152 243 1710 Desired Range Hz 1-151 1-151 1-151 1-151 1-151 Max Element Length OK OK OK Not OK Not OK 1. Model 0.3 0.3 0.3 0.3 0.3 2. Theory [l=(340.0/f)/6] 1.05 0.50 0.37 0.23 0.03 0.1 Maximum Element Length 0.2 0.3

  3. SUMMARY of SPL at Field points for all the scenarios 100 modes 200 modes 236 modes 300 modes 500 modes

  4. SPL at THREE Field points for 100 mode scenario SPL at THREE Field points for 100 mode scenario

  5. SPL at THREE Field points for 200 mode scenario

  6. SPL at THREE Field points for 236 mode scenario

  7. SPL at THREE Field points for 300 mode scenario

  8. SPL at THREE Field points for 500 mode scenario

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