We need someone with advance experience using Ansys, Abaqus, Strand7 or Algor, capable of generating and analysing a finite element model of a spreader frame used as a below the hook lifting aid for modular buildings. This is a simplified frame built with CHS and plates to transfer the building’s weight into the slings comprising the lifting arrangement (maximum size 32mx14m).
Refer to the attached files for examples of spreader frames.
SCOPE OF WORKS
1. Pre-processing: modelling the frame.
Using a suitable program the frame’s geometry is to be generated. The final FE model will consist of several elements that collectively represent the entire structure. Where geometry is complex (i.e. curves, notches, holes, etc.) an increased number of elements to accurately represent the shape will be required. Conversely, sections with simple geometry can be represented by coarser mesh (or fewer elements). It is assumed your experience with FEA will provide insight for the selection of proper elements, their characteristics and level of refinement. You should be able to adequately input material mechanical properties, boundary conditions and different loads cases.
With a proper FE model generated that represents the physical problem, it is expected that the model is solved to obtained output results including deflections values, strain, stress, and reactions. Based on allowable stress criteria, and deformation limits, results are to be interpreted to allow modification of parameters and re-analyse the model as required.
3. Post processing
Results obtained from the analysis are considered to be raw data and unfriendly to interpret. As part of the post processing it is expected the software capabilities will be utilised to generate deflected shape of the structure, creating stress plots, close-up views, etc. A graphical representation of the results as part of your deliverable will be essential to provide others with an understanding of the structure’s behaviour.
The deliverables include: 1) Final FE model (native files), 2) Report with results, interpretation, input/output from software, plots and snapshots of deformed shapes (word and pdf versions)
Candidate must be able to demonstrate experience in scopes of similar or greater complexity. In your proposal, please include: your qualifications, experience in similar FEA models, including: date, type, size, brief description, and any other information that would be beneficial to highlight.
The scope MUST be completed between the 25th of April and the 2nd of May 2016. Direct and constant support will be provided and its expected progress interaction will occur to ensure work is progressing adequately.
- Please submit your expression of interest based on the information provided. Further information will be shared once we further communicate.