Dynamic load analysis

Moving and fixed (steady state) dynamic load analysis with sinusoid exciting force (time history analysis) per British Standard and Sétra recommendations

Codes: Ansys APDL

Usage

• define element group under name 'moving_load_path' - contains the elements where the load will be applied
• adjust values inside the settings part
• moving_load_results

Optional

• (applies only for reduced analysis) define the node/element group under name 'moving_load_results' where results are needed (if not selected the nodes corresponding to 'moving_load_path' will be selected)

Notes

• currently can handle only cases where the moving path runs in X direction (local coordinate system required otherwise) and loaded in Z direction
• in case of full transient analaysis the Rayleigh damping coefficients are calculated with the assumptions that the first two important (largest mass participation in excitation direction if mass_sort_freq=1) modes have the specified structural damping
• currently working only with line type load path (torsional modes..)
• the moving_load_path is used for mode shape extraction for BS -> later mode_line COMP
• -> later moving_load_area COMP

Acknowledgements

The scripts in this repo have been developed at Department of Structural Engineering, Budapest University of Technology and Economics.

My other Ansys related repos

• run Ansys in parallel batch mode using Matlab
• dynamic load analysis for bridges
• construction stage analysis