Vibration Problems

Seismic problems figure extensively in our workload and we have established a reputation for innovative approaches to these problems achieving cost-effective solutions in short time-scales.

We have wide experience, covering such diverse aspects as:

Seismic assessment of critical plant
Seismic design
Seismic monitoring
Inspection of earthquake damaged plant
Recommendations for repair to earthquake damage

We have been responsible for the seismic design of many structures and components, ranging from pipework support brackets to the design of an emergency cooling tower for a nuclear power station.

We have conducted various types of analyses, including

Seismic coefficient based calculation
Response spectrum based computer analysis
Soil-structure interaction analysis
Time-marched, linear and non-linear numerical modelling
Investigation into the effect of structural vibration in industrial buildings.
Machinery – design of remedial measures for fans, fan casing, shafts and bearing assemblies.
Process plant – long term remote electronic monitoring of the vibration of safety critical pressure vessels
Human response to vibration, for example, hand/arm vibrations – "White finger"
Fatigue – design and analysis of wind turbine blades
Automotive – ABS braking characteristics under swerving manoeuvres in conjunction with the
Institute of Traffic Accident Investigators (ITAI)
Integrity assessment of bridges by natural frequency and velocity measurements

Our engineers are experienced in the following testing areas:

Structural mode measurement, on or off-site
Small scale model tests
Seismic arrays
Assessment to design codes
Vibration measurement
Long term monitoring
Computer modelling
Remedial measures