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{ Category Archives } Finite Element Analysis

Design validation through FEA

This particular client often uses our services to validate design modifications to plant equipment. Their equipment is used to transport large sheets of glass from the production line to the shipping bays. Failure of the equipment during a lift operation can result in severe injury or death due to glass shards or the payload.
We first […]

Random response analysis of avionics tray

A client approached us with a difficult electronics packaging problem. Their customer required a commercial, off-the-shelf (COTS) board to be included in a device that must pass the MilSpec random response envelope for a particular aircraft. Since the COTS board could not survive the vibration unless the enclosure provided shock and vibration isolation, the objective […]

Machine Design - Fatigue

A client was experiencing failure in a cantilevered shaft which supported a heavy spool that was subject to frequent rapid starts and stops. The initial design incorporated a a 3″ diameter shaft that was supported by two bearings with a drive gear halfway between the bearings. A larger, 5″ diameter shaft was fillet welded onto […]

Hanger Flanges

A client recently engaged our services to design hanger flanges to satisfy a prescribed load combination for each size. A hanger flange is a joint in a pipeline whose primary purpose is to react the axial load below the hanger flange into some structure (hence the term hanger). The requirements were that the design satisfy […]

InjectSafe Safety Valve

Assume you wanted to deliver something via capillary tubing from topside to the producing zone(s) and there is (will be) a tubing retrievable sub-surface safety valve. You need a mechanism to bypass the safety valve without compromising it’s function. BJ-Services/Dyna Coil division has developed a technology that allows an operator to inject chemicals past […]