Mechanical Engineering Consultants Case Studies |
Finite Element Analysis
A reliable real-time vibration monitoring system for Cristal Pigments UK Ltd
THE CHALLENGE—We have worked on a wide range of projects for our client Cristal Global and our knowledge of vibrating systems has enabled us to develop a bespoke vibration monitoring system. Early projects with them led to the realisation that two of their support structures were in trouble because of continuous vibration imposed by violent chemical reactions in the process vessel. THE [...]
Vibration Analysis
Vibration Case Study Shorts
1. 3801 VIBRATING CONVEYOR The support structure for this conveyor system is over 10 m tall and utilises anti-vibration mounts (AVMs). The requirement was to establish that these AVM's were fit for purpose and that their transmitted vibration would not lead to fatigue cracks in the structure. This involved a mix of vibration theory and finite element analysis. Special attention was required for the design of bracing [...]
Pipework Analysis
Channel Tunnel Rail Link Piping Bracketry
Following our design work for the London Underground Jubilee line, we were asked to design the brackets that would hold the fire mains and drainage piping in the 43 kilometres of the Channel Tunnel Rail Link system. The brackets were required to support the self weight of the pipework as well as surge pressures. Surge Analysis Although the fire mains were permanently filled with water, [...]
Failure Analysis
Channel Tunnel Rail Link Piping Bracketry
Following our design work for the London Underground Jubilee line, we were asked to design the brackets that would hold the fire mains and drainage piping in the 43 kilometres of the Channel Tunnel Rail Link system. The brackets were required to support the self weight of the pipework as well as surge pressures. Surge Analysis Although the fire mains were permanently filled with water, [...]
Design Services
Substantiation of Piping Package
The Challenge: DC White were commissioned to substantiate a piping package to several codes, ASME B31.3 for the pipework and API 610 for the nozzle loads. A previous report found that the loads acting on the pump suction and discharge nozzles were failing to meet the requirements of API 610. The recommended modifications were to place the pump on a sliding baseplate and include an additional support [...]
Expert Witness
Ladder collapse – Expert Witness
Engineer Expert Witness For Ladder Collapse This was a mystery with very little evidence, except that someone had injured themselves as they fell out of his attic trapdoor after a portable stepladder failed. The only evidence was a report by an HSE inspector who photographed the offending ladder and noted marks on a wall. By the time DC White were called in, the ladder had been destroyed and [...]
Bespoke Projects
Design analysis of a rail trolley frame
Substantiation of an existing design against new requirements for a manufacturer of rail track equipment THE CHALLENGE—Our client had an existing product which was being sold to a new market and had to meet a new set of requirements laid out in RIS-1530-PLT (a rail industry standard). The trolley's frame is subject to high acceleration and cornering loads which were used to perform a fatigue analysis. The [...]


