Mechanical Engineering Consultants Case Studies |
Finite Element Analysis
Seismic assessment in research facility
FEA & Design Improvement Case Study We were asked by our client to perform a seismic assessment of a door for a biological laboratory in New Zealand. The primary purpose of the door was to act as an airtight seal between the 'clean-room' environment and the rest of the research facility. Because of the likelihood of earthquakes in such a seismically active part of the world, it [...]
Vibration Analysis
RECOVIB Tiny in use on Tours bridge
RECOVIB Tiny used on a Pedestrian Bridge in Tours, France RECOVIB Tiny used on a Pedestrian Bridge in Tours, France RECOVIB Tiny For Vibration Measurements In the city of Tours, in France, a new footbridge has been constructed. As part of commissioning, vibration measurements are carried out. By means of modal [...]
Pipework Analysis
Pressure Relief Pipework Analysis and Design
The Problem DC White Engineering Consultants Ltd were commissioned to design and assess pressure relief pipework. This was to be installed to an existing pressure vessel weighing several hundred tonnes containing process chemicals. The piping arrangement was assessed against the ASME B31.3 Process Piping code using CAESAR II software. Internal pressure, thermal loading (expansion) and dynamic vibration were included within the assessed load cases and the analysis [...]
Failure Analysis
Thermal analysis and NDT of crack in reactor vessel – Solvent Manufacturing
FEA Thermal Service Case Study DC White was approached by a large European solvent manufacturing company who had unwittingly been running one of their reactor vessels above its design temperature. The additional thermal load already placed on the vessel meant that it was removed from service and a site visit organised to carry out Non Destructive Testing (NDT) on the welds connecting the external limpet coils to [...]
Design Services
Design substantiation of an Autoclave Frame
DC White FEA Redesign: Autoclave Frame DC White was approached by a leading Autoclave manufacturer to substantiate a frame, shown in Figure 1, which was being re purposed for a new application with a slight change in the design and an increased contents weight. The original design had already been substantiated by DC White CE a few years earlier, so the original model was resurrected and updated to [...]
Expert Witness
Marine engine bearings failure analysis
DC White have recently been requested to carry out inspections of two large marine diesel bearings by a major fleet operator. The bearings failed prematurely and the fleet operator sought an independent opinion in order to assist in negotiations with the engine manufacturers. The first bearing was a main bearing and the second a crosshead bearing. The first had run for 15,000 hours and the second for [...]
Bespoke Projects
Design substantiation of an Autoclave Frame
DC White FEA Redesign: Autoclave Frame DC White was approached by a leading Autoclave manufacturer to substantiate a frame, shown in Figure 1, which was being re purposed for a new application with a slight change in the design and an increased contents weight. The original design had already been substantiated by DC White CE a few years earlier, so the original model was resurrected and updated to [...]
