[Vibration Analysis]
This page shows some application examples from the area of vibration measurement and vibration testing.
The StrobeCAM or the Q400 DIC system was used for the measurements.
Contactless measurment of the resonance curveWith the combination of StrobeCAM and LIMtrack the resonance curve is measured at a frequency sweep. In this example, a spring is excited on an electrodynamic shaker with 20-200 Hz. For the measurement of motion using LIMtrack, the spring is prepared with patter stickers. |
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Vibration measurement of electronic components on a PCB Board by using a high resolution cameraVibration testing of a PCB board on an electrodynamic shaker. The visualisation with the StrobeCAM shows the motion of the electronic components and discovers meachanical problems, that can lead to a fatigue failure. |
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Slow motion visualisation of the deformation of a connection plate under vibration loadVibration testing of a connector panel on a electrodynamic shaker. The visualisation with the StrobeCAM shows in slow motion the deformation of the panel at a resonance frequency. |
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Slow motion visualisation of a spring at it's Resonance frequencyVibration testing of a spring on a electrodynamic shaker. The visualisation with the StrobeCAM shows in slow motion the spring deformation at it's resonance frequency. |
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Non-contact measurement of the modal shape of a wing using DICThe modal shape of a wing (aircraft model) is measured using the high-resolution Q400 DIC system. The aircraft model is excited at its natural frequency using an electrodynamic shaker. The Q400 system measures the areal 3D deformation with high accuracy and spatial resolution, from which the natural frequencies and modal shapes can be automatically calculated. |
RNon-contact measurement of natural frequency and vibration dampingThe free vibration of an aluminium plate that is clamped at one side is measured with the fast RTSS system. The plate is accelerated by an impulse at the free end. The fast RTSS system achieves a measurement rate of 1500Hz and can therefore resolve motion frequencies up to 500Hz. |
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Measurement of the Eigen frequency of a tuning forkThe vibration of a tuning fork is measured with the fast RTSS system. The tuning fork is marked with a line sticker to improve the RTSS measurement accuracy. The fast RTSS system achieves a measurement rate of 1500Hz and can therefore resolve motion frequencies of up to 500Hz. |
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Vibration measurement in the wind tunnelThe vibration of a car door in the wind tunnel is measured with the Q400 Highspeed DIC System. The modal shape is calculated from the spatially resolved 3D displacement. The color overlay shows the modal shape of the vibration. The measurement resolution is a few µm (micrometers). |
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