Laser Vibrometer Student: Duncan Roxburgh Supervisor: Professor Andrew Moore Modal Hammer Shaker Accelerometer • Compare modal excitation techniques • Investigate traditional and optical vibration measurement methods • Design virtual instrumentation to accept Modal Analysis Vibration Response Impact Impact Frequency Response Function Finite Element Model Validate Finite Element Model with Experimental Data Each peak can be described by a ‘SDOF’ model which allows the ‘Modal properties’ of the structure to be obtained. • Natural Frequency • Stiffness • Damping • Modal constant Experimental model Vs. FE Model
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Laser Vibrometer
Student: Duncan Roxburgh
Supervisor: Professor Andrew Moore
Modal Hammer
Shaker
Accelerometer
• Compare modal excitation techniques
• Investigate traditional and optical vibration measurement methods
• Design virtual instrumentation to accept Modal Analysis
Vibration Response ImpactImpact
Frequency Response Function
Finite Element Model
Validate Finite Element Model with Experimental
Data
Each peak can be described by a ‘SDOF’model which allows the ‘Modal properties’ of the structure to be obtained.
• Natural Frequency
• Stiffness
• Damping
• Modal constant
Experimental model Vs. FE Model
-
MEngMEng 44thth Year ProjectsYear Projects (07(07--08)08)Dept. of Mechanical Engineering, HDept. of Mechanical Engineering, H--W UniversityW University
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