• 20 years as an independent consultant after early career in vehicle and agricultural engineering research.
• Contribution to standards development.
• Projects have included operator exposure to hand-arm vibration and whole-body vibration and shock, and developing machines for low vibration at the operator.

College of Aeronautics (1965-70)

I held a Research Fellowship in vibration dynamics, working on simulation of the valve gear of internal combustion engines and on the development of an electro-hydraulic test facility for vehicle suspension studies. I also worked with an ergonomics team studying human response to vibration.

NIAE 1 (1970-1974)

My Section worked on reduction of noise in cabs of agricultural tractors, studies to define operator noise exposure and measure hearing loss and the community annoyance aspects of noise from fixed farm equipment. I also developed a research programme on off-road vehicle ride, including measurement and analysis, simulation, and, later, the design of various suspension systems for agricultural tractors.

NIAE 2 (1974-1984)

Responsibility for the Ergonomics Department combined management of the research teams studying workload, safety, thermal comfort and other Ergonomic subjects with continuation of the noise and vibration programmes. The vibration programme included a study for a commercial consortium including the field demonstration of the benefits of improved tractor ride. It also included the introduction of two major test facilities, one for the measurement of tyre dynamic properties, the other a ride simulator for studying seat design.

NIAE 3 / AFRC Engineering (1984-1989)

In my last position at Silsoe I had management responsibility for all aspects of tractor research, including traction and ground drives and an experimental farm transport vehicle, as well as the routine tractor and components testing function, and, later, the cultivations research team. I was also responsible for co-ordinating the activities of Institute staff in up to 25 BSI committees. With a staff of 30 research workers to supervise, my personal research was rather limited, but I was able to work on a cab suspension for a commercial sponsor during this period.

RMS Vibration Test Laboratory (1989 - present)

The laboratory was set up originally to develop suspension elements for tractor cab and other off-road suspensions. It now undertakes consultancy work including measurement and analysis of vibration and noise for a variety of industries, utilities and government agencies. Projects concerned with both vibration and noise may be targeted at reducing environmental impact, operator protection or product development. The laboratory also provides an expert witness service in cases relating to the effects of vibration on man.