Short List of Other Recent Small Consulting Jobs:

• Exhaust System for Gas-Turbine-Powered Speedboat
• Drive System for Full-Scale Motorized Oil Rig Display, Museum of Civilization, Hull, QC
• Structural Investigations into Marine Exhaust Cracking
• Design of a Retrofitted Liner for Large-Ship Exhaust Uptakes
• At Sea Temperature Measurements in Air Intake of Marine LM2500 Gas Turbine Engine
• Design and Fabrication of Aero Engine Test Support Equipment

Submarine Wind Tunnel Test Apparatus

This project was carried out for Defence Research Establishment, Atlantic (DREA) of Halifax and involved the detailed design and analysis of the model and equipment for an investigation into the maneuvering characteristics of a submarine scale model in a wind tunnel. It was intended for testing in the National Research Council (NRC) 9 m x 9 m wind tunnel at Uplands. The submarine model was approximately 6 m long, was machined out of aluminum, and weighed over 4000 kg, incorporating moveable control surfaces and propeller. A complex and accurate support and force balance measurement system was developed in order to accurately measure the comparatively small deflections and force changes.

Davis has also been involved with several other projects to design and fabricate model supports and stings for both low and high-speed wind tunnels.

Human Engineering Facility Design and Fabrication

Two projects were undertaken for Defence and Civil Institute of Environmental Medicine (DCIEM), Canadian Department of National Defence, for a Human Water Calorimeter Facility and an Upgraded Human Centrifuge Drive System. The Calorimeter Facility required the design, manufacture and installation of a computer-controlled calorimeter facility, capable of measuring the total energy loss from a human subject submerged in a constant temperature water bath. This consisted of an insulated stainless steel tank with a clear, magnetically sealed lid, control station, heat exchanger (capable of heating or cooling tank), and two circulating pumps. Temperature could be controlled to ±0.01°C from 5-40°C.

The second project involved the mechanical and electrical design of an upgraded drive system for the Human Centrifuge. This included all motor and moving components, static and dynamic analyses of the frame, stressing of all mechanical components and design of the electrical power system. Detailed certified fabrication drawings were produced for the subcontractors.

Segmented Wave Generators

Davis' first wave generating machine was built in 1982 and used for Ocean Research. Installations of our wave generators have been made in Spain, France, Korea, Taiwan, The United States, and Canada.

Special Equipment Vehicle Kitting

Historically, Davis was heavily involved in Special Equipment Vehicle (SEV) Projects, for both military and commercial end-users. Some examples of these projects would include the Medium Logistics Vehicle Wheeled (MLVW) for the Canadian DND (including different configurations such as field office, field workshop, medical support, etc.); a trailer-based system for the Canadian RCMP housing electronic baggage surveillance and explosive detection equipment; a van-based system for the Chemical Spill Response Team of Environment Canada; and the kitting of military shelters for DND. In more recent years this sector has played less of a role in Davis' core business, although we still maintain the capabilities required.

These projects all involved the design, prototyping, qualification (where required), component procurement, technical documentation and translation, and production of the kit and ancilliary subsystems (i.e. electrical, HVAC, etc.). Many of the systems were required to meet rigourous military or commercial specifications on transmitted vibrations, noise, and EMI, as well as protecting their contents from the hazards of road, rail or air transport.

Radarsat and MSAT Satellite Transportation Container Design Modifications

Davis conducted several separate design and fabrication projects for the Satellite and Communications Division of SPAR Aerospace Ltd. SPAR had decided to modify the existing ANIK-E Satellite Transportation Container (STC) for both the Radarsat and MSAT Satellite programs. This container was used to transport satellites to launch sites via either freight aircraft or air-ride truck. Modifications included the design of a completely new support frame and satellite-dependent isolation systems, as well as container end wall and lid assemblies; a new lifting system and an upgraded container wheel assembly. Due to the rigourous requirements and safety precautions involved in transporting such a valuable device, extensive design work was done using ANSYS for both static and dynamic loads.

EXPO '86 Motion Exhibit

In 1985, Davis was selected by CN to design and build the exhibits for their pavilion at Expo '86 in Vancouver. The challenge was to design large interactive exhibits which would represent the four different types of motion: uniform, accelerating, circular and oscillatory. The resulting structures were attractive, durable and very popular with young people as they were able to cause the large exhibits to operate through their physical efforts. The most unusual was a large 3m diameter "hula-hoop" which would climb a pole in response to the operators pedaling bicycles.