Linear static stress analysis of the welds on a heat exchanger. Multiple load cases were analysed, applying design or operating loads accordingly. Although the heat exchanger body was modelled and analysed, only the stresses were reported for the welds as these were the components of interest. Different weld thicknesses were analysed and recommendations were given where applicable on how to improve the weld sizing.
FEA of a themepark ride, carrying up to 30 passengers, subjected to quasi-static and modal analyses. The project comprised of the carriage (shown in image), the motion base and a number of sub-assemblies. For each, several design scenarios have been analysed. The reports have later been checked by TUV and accepted without any changes.
Linear static stress of a composite enclosure assembly, subjected to being struck by a wave. This wave load was applied as a pressure in the analysis. The framework was represented by beam elements, with the composite panels being represented by sandwich elements. It was recommended to re-run the analysis on a further refined model to include the connections between beams in greater detail.
Spring clip used to press electronic components onto heat sinks. Mechanical failure caused electronic malfunction. Although looking like a trivial stress problem at first glance, it was complex to find a compromise between compression force and spring rate. Deliverables included spreadsheet for client to calculate springs for future projects.
Modal and Seismic (Response spectrum) analysis of a Recuperator assembly. 3 Designs of the recuperator were analysed. The modal analysis was completed as a pre-requisite for the seismic analysis. For the seismic analysis, 2 load cases were analysed, using different seismic spectra as inputs. Stresses and displacements were reported for each design.
Fully non-linear stress analysis of pressure vessel subjected to 11,000barg internal pressure. The project consists of 2D axisymmetric models (one shown in image) and 3D half models covering details as well as the completed device. The reports highlighted weaknesses and provided recommendations for improvement
Linear stress analysis and linear buckling analysis of a bin assembly. The three separate load cases analysed initially were evaluating the stresses from dead weight, vacuum pressure and bolt pre torque in isolation before applying all three in the same load case. The buckling analysis used the loading conditions of the vacuum and dead weight. The model passed all acceptance criteria, including those outlined in standard PD5500.
Steady state heat transfer and linear static stress analysis of a bulkhead interface design, using non linear surface contact. A Pie cut symmetry model was used for the analysis. The heat transfer analysis provided the temperature inputs for the static stress analysis. It was noted from the analysis that some of the stress peaks in the model were close to the yield strength of the materials used, and so might require consideration moving forward.