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A part of BMT in Energy and Environment. Solving Machinery and Structural Problems by Measuring Critical Parameters.

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A part of BMT in Energy and Environment

Solving Machinery and Structural Problems by Measuring Critical Parameters

  • Determining the actual loads, pressures and stresses acting on equipment, structures or components is fundamental to understanding the engineering solutions needed to improve performance. WBM has used a combination of measurement, analysis and modelling in numerous applications to investigate a wide range of plant and machinery. This approach eliminates the assumptions that frequently are made during design.

  • Transducers that can, and have, been used include:

  • strain gauges of various configurations,

  • accelerometers,

  • pressure sensors

  • temperature sensors,

  • displacement and optical devices and

  • custom built load cells.

BMT WBMwww.bmtwbm.com.aum:\marketing\2 services\09 strain gauging and telemetry.ppt

The output from these transducers has to be recorded for data analysis and this can be done using a range of tape and chart recorders as well as computer based data logging instrumentation. Installation of these monitoring systems may be for short or long term studies using dedicated equipment or the client’s existing technology.

WBM is able to measure up to 256 channels of information simultaneously. Telemetry enables WBM to measure data from moving machinery to determine parameters such as: shaft torque, slew bearing loads or stresses in grinding mills and breakers.

Typical applications include:

Face shovels, draglines, container cranes, ball mills, fork lifts, dredges, sluice gates, paper mills, rail cars, rail bogies, locomotives, hydraulic presses underground shearers, hydraulic

drives, apron feeders, luffing booms, underground roof supports, vibrating screens, wash plant structures, centrifuges, furnaces, smelters and conveyor drives.

Some of these installations have involved measurement underwater, at high temperatures up to 400C, work in sub-zero conditions and testing underground to depths of 2000m. In many instances equipment has been customised to suit particular conditions and the parameters requiring measurement.

The data collected has been used for a vast range of purposes including:

determining the fitness-for-purpose of equipment for strength and fatigue, understanding the behaviour of hydraulic control system on an apron feeder (following a fatal accident), troubleshooting the

hydraulics on colliery roof supports, determining loads on a container crane, comparing the stresses on a dragline due to different buckets, quantifying the dynamics on a train for performance specification criteria, improving design or redesign options to meet specified life requirements.

These technologies can provide a powerful means of providing engineering solutions to complex issues.