It is well known among professionals that depending on complexity the reliability of vibration analysis may go even below 50% making it close to useless. To mitigate this problem increased number of sensors and combined methods are used. All kind of treating of statistically gathered data with artificial intelligence and other algorithms can be considered as another industry trend. We respect all that but choose our own way.
Based on fundamental and applied research WH Monitoring has developed proprietary technology of three dimensional phase sensitive vibration measurement. The three main components of the structural deflection, i.e. longitudinal, transverse and vertical, are obtained with respect to time using WH Monitoring sensors.
The three-dimensional deflections in time domain at a measurement point are reconstructed and presented as timehistories and / or easy-to-read plots. Then the maximum deflection amplitudes with phase relationship are provided for each directional component. This data is accumulated for range of frequencies at each measurement point and can be presented as vectors, plots or in a table format. The deflections are then used to calculate the stresses in three dimensions at the measurement point using Hooke’s Law with appropriate Poisson’s coefficient.
This approach provides with a full picture of structural response in three-dimensions which cannot be obtained with traditional measurement and post-processing methods. WH Monitoring’s technology can be used for absolutely any types of structure made of metal or composite materials. WH Monitoring help extending operating life and optimise operating conditions of the equipment, minimise shut-down periods, reduce running costs and increase safety of the personnel. The technology is very robust and can be used onshore, offshore and in-air, on both static and mobile units. More specific applications are detailed and not limited to below:
● Calculation of maximum responses, forces and stresses within the structure;
● Equipment health and vibration monitoring;
● Monitoring of structural behaviour and structural design optimisation;
● Fatigue assessment and failure prediction;
● Optimisation of operating conditions to extend equipment life and improve efficiency;
● Acceptance test of newly supplied equipment;
● Identification of defects and predictive maintenance;
● Calculation of structural properties such as critical damping, stiffness and resonant modes;
● Calibration of Finite Element Simulations.