Accurate knowledge of resonance frequencies and damping coefficients in correlation with the operational loads are indespensable for the design of technical components with respect to their dynamical behaviour. Deficiencies in the dynamical design lead to high vibration levels, noise generation and at worst to fatigue failure of the components. Experimental vibration analysis is a means of determining resonances and frequency response functions in a quick, reliable and cost-effective way. The device under test is excited by a defined and persistent actuation signal. At the same time the vibration of the device is measured at the points of interest. The excitation can be realized using an electrodynamical shaker, an impact hammer or a piezoelectric actuator. As sensors, piezoelectric accelerometers are being used or - for contact-free measurements - laser triangulation sensors or laser-doppler-vibrometry.

DTSquare offers experimental vibration analysis as a service. As a result, the customer gets information on natural frequencies (resonances), damping coefficients and frequency response functions of the respective device under test. These results can be used e.g. for comparing different design variants, adjusting parameters of finite element models or for detecting vibration problems in the component. Furthermore, statements can be made about the vibroacoustical behaviour (noise generation, noise transmission, noise induced vibrations). We interpret the results of the measurements together with the customer and work out solutions for potential problems.

Based on the results of the vibration analysis, component specificdurability tests can be carried out.