08 Jun 777: Pipe Run Analysis of a pipe run which failed during operation to determine why failure occurred. Various analyses were performed, including static stress, modal and harmonic response analyses, considering a variety of loads which could cause failure. After the analyses the most likely reason for the failure was determined during operation. Posted at 09:35h in Read More
18 Oct 642: Tie Down Linear-Elastic Static Finite Element Stress Analysis of a tie down fixture, including non-linear surface contact. Two load cases were analysed with different hook angles used. Recommendations were given to change the design and materials used to strengthen the design. Posted at 08:08h in Read More
15 Oct 640: Tube Plate Return Bend Linear-Elastic Static Finite Element Stress Analysis of a tube plate return bend. Loads included internal pressures and elevated temperatures. Stresses due to the loads were compared against allowables from ASME standards, and verified the design passed these standards. Recommendation given to include stress linearisations when analysing the design at its design pressures and temperatures. Posted at 07:42h in Read More
14 Oct 639: Passive Active Nitron Monitor Modal Analysis and Response Spectrum Analysis of a Nitron monitor. The modal analysis was used to determine the natural frequencies of the structure and to calculate the input for the response spectrum analysis. Once complete, recommendations were given on how to improve the assembly to increase its strength, and pass the acceptance criteria. Posted at 07:56h in Read More
13 Oct 638: Gamma Detector Assembly Modal and Response Spectrum Analysis of a gamma detector assembly. The modal analysis was used to determine the natural frequencies of the structure and to calculate the input for the response spectrum analysis. The response spectrum analysis gave the stresses and strains as its outputs. These stresses were used to validate the design of the assembly, with recommendations given to compare bolt forces against their allowables, and conduct further analyses on the devices placed on the assembly in practice. Posted at 07:44h in Read More
11 Oct 637: Vessel Non-linear static Finite Element Stress Analysis of a vessel with increased temperatures due to welding. Analysis was performed to ensure the base material present in the weld areas did not fail during the welding process due to the high temperatures observed. Upon completion, the design was deemed acceptable, although recommendations were given to also undertake a more detailed heat transfer analysis to better understand the temperature changes during the weld process. Posted at 08:07h in Read More
08 Oct 633: Screenhouse Linear Static Structural Analysis of a building structure with loads due to dead weight, wind and snow (environmental loads). The loads were calculated according to standard BSEN1991. Upon completion of the analysis, recommendations were given to include assemblies and sub assemblies that had been omitted upon request during the initial analysis, so that the acceptance criteria detailed in the industry standards could be correctly applied. Posted at 07:06h in Read More
07 Oct 627: Lifting Frame Linear-Elastic Static Finite Element Stress Analysis of a lifting frame with increased load requirements. The model included non-linear surface contacts represented by gap elements within the model. Upon completion of analysis, recommendations were given to increase the strength of the frame so that it could pass the acceptance criteria. Posted at 09:06h in Read More
06 Oct 626: Mast Non-Linear Finite Element Analysis of a Mast assembly, evaluating displacements of antenna and guy wire forces at given wind speeds. Once complete, the mast and antenna placement was confirmed as acceptable. Recommendations given on conducting further analyses to ensure certain parts were strong enough for operating conditions. Posted at 08:23h in Read More
04 Oct 701: Bumper Rig Static stress analysis of a drone test rig concept. 4 different positions of the test rig were analysed, with varying load cases evaluating the effect of having different impellers on the rig at different power levels. Although the actual load is an impact load, a quasi-static analysis was performed in agreement with customer. Upon completion, recommendations were made to modify the design, and also to run a transient analysis, which would more realistically simulate the time dependent nature of the load. Posted at 09:36h in Read More
