29 Jun 126: Large Sailing Yacht Hull Stress analysis of large sailing yacht hull subjected to several load combinations comprising accelerations, hydrostatic pressure and rigging loads. Geometrically very complex model with very fine mesh size. Complex load calculation done with tools outside the FEA software. Posted at 10:00h in Read More
29 Jun 125: Yacht Portlight Linear static stress analysis of a yacht portlight. Initially a global model of the whole yacht was analysed in order to get the inputs for the sub model, which analysed just the porthole, but in much greater detail. Both the windward and leeward cases were analysed, for both a double glazed, and a single glazed portlight. The maximum stresses were reported for the model in all load cases. Posted at 10:00h in Read More
29 Jun 122: Stacking Box Linear static stress and linear buckling analysis of a stacking box design, using a quarter model. The minimum factor of safety in the model was reported and the minimum buckling multiplier. Posted at 09:59h in Read More
29 Jun 116: Motor Assembly Modal analysis of a motor assembly, using a plate element model. Two load cases were analysed, with different representations of the interactions between various components. One model used a bonded contact, whilst the other used a bolted connection. In both cases, it was found that there were multiple natural frequencies below the operational speed, which could cause resonance if they are excited. Recommendations were given on how to stiffen the assembly. Posted at 09:58h in Read More
29 Jun 115: Visual Reaction Cell Linear-Elastic static stress analysis of a reaction cell, with non linear contact. A half model was used for the analysis. Although the maximum stresses were well below the allowables, it was shown that the parts were separating, indicating a a loss of sealing. It was recommended to include bolt pretension in the design, to prevent this issue. Posted at 09:58h in Read More
29 Jun 110: Motor Assembly Linear-Elastic static stress analysis of a motor assembly, with non-linear contact. Two models were analysed, one including a reinforcing plate. The analysis showed that both models had very low stress, with the actuating force for the eccentric drive also being reported. Posted at 09:57h in Read More
29 Jun 109: Buoy Linear static stress analysis of a buoy design. 4 load cases conducted based on different loading conditions. All element types (beam, plate and solid) were used in the analysis, for the appropriate parts. As the resulting stresses in the model were well above the yield strength of the materials used, recommendations were given to modify the design. Posted at 09:56h in Read More
29 Jun 108: Bi-metallic Tube Static Stress analysis of a bi-metallic tube subjected to internal pressure. Both non-linear contact and materials were used in the analysis. The analysis showed that the maximum stresses in the tube are above the yield strength of the material, with a small residual radial compression between the inner and outer tube after the internal pressure was reduced back to 0psi. Posted at 09:56h in Read More
29 Jun 107: Subsea EnclosureLinear static stress and linear buckling analysis of a subsea assembly due to external pressure. Non linear surface contact was used in the model to accurately represent the interaction between parts. Although the lowest buckling load multiplier was acceptable, design modifications were recommended as the factor of safety in the stress analysis was too low. Posted at 09:56h in Read More