Journal article
Coupled computational fluid and multi-body dynamics suspension boat modeling
Journal of vibration and control, Vol.24(18), pp.4260-4281
09/2018
DOI: 10.1177/1077546317722897
Abstract
Multiphysics modeling, code development, and validation by full-scale experiments is presented for hydrodynamic/suspension-dynamic interactions of a novel ocean vehicle, the Wave Adaptive Modular Vessel (WAM-V). The boat is a pontoon catamaran with hinged engine pods and elevated payload supported by suspension and articulation systems. Computational fluid dynamics models specific to WAM-V are developed which include hinged pod dynamics, water-jet propulsion modeling, and immersed boundary method for flow in the gap between pontoon and pod. Multi-body dynamics modeling for the suspension and upper-structure dynamic is developed in MATLAB Simulink. Coupled equations of motion are developed and solved iteratively through either one-way or two-way coupling methods to converge on flow-field, pontoon motions, pod motions, waterjet forces, and suspension motions. Validation experiments include cylinder drop with suspended mass and 33-feet WAM-V sea-trials in calm water and waves. Computational results show that two-way coupling is necessary to capture the physics of the interactions. The experimental trends are predicted well and errors are mostly comparable to those for rigid boats, however, in some cases the errors are larger, which is expected due to the complexity of the current studies. Ride quality analyses show that WAM-V suspension is effective in reducing payload vertical accelerations in waves by 73% compared to the same boat with rigid upper-structure.
Details
- Title: Subtitle
- Coupled computational fluid and multi-body dynamics suspension boat modeling
- Creators
- Maysam Mousaviraad - University of WyomingMichael Conger - University of IowaShanti Bhushan - Mississippi State UniversityFrederick Stern - University of IowaAndrew Peterson - Virginia TechMehdi Ahmadian - Virginia Tech
- Resource Type
- Journal article
- Publication Details
- Journal of vibration and control, Vol.24(18), pp.4260-4281
- DOI
- 10.1177/1077546317722897
- ISSN
- 1077-5463
- eISSN
- 1741-2986
- Language
- English
- Date published
- 09/2018
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196632002771
Metrics
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