This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Amphibious Vehicle Water Egress Modeling and Simulation Using CFD and Bekker’s Methodology
Technical Paper
2021-01-0252
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
A significant challenge for wheel- and propeller-driven amphibious vehicles during swimming operations involves the egress from bodies of water. The vehicle needs to be able to swim to the bank, and then propel itself up the bank using water propellers and wheels simultaneously. To accurately predict the ability of the vehicle to climb the bank, it is important to accurately model: (1) the interaction of the flow through the propellers, around the vehicle hull, and over the bank; (2) the wheel / bank interaction; (3) the suspension system spring, damping, and motion-limiting forces, tire deformation and loading characteristics, and wheel and hull motions (both translation and rotation); and (4) the drivetrain power distribution to the wheels. Detailed modeling and simulation of these physics and processes - such as the wheel, hull, and suspension system motions and force interactions, propeller rotation and resulting flow, etc. - would be highly computationally expensive. Therefore, to make the water egress problem more tractable to solve, various modeling simplifications - such as the use of an actuator disc methodology for propeller flow modeling and Bekker’s terramechanics methodology for the wheel / bank interaction - were introduced to facilitate rapid simulation. The integration of a simplified vehicle solver with a six-degree-of-freedom (6DOF) body dynamics and multiphase Volume of Fluid (VOF) computational fluid dynamics (CFD) solver (STAR-CCM+) resulted in a robust, comprehensive methodology for modeling and simulating amphibious vehicle water egress onto soft soil for various environmental and vehicle characteristics and operational conditions.
Authors
Topic
Citation
Tison, N., "Amphibious Vehicle Water Egress Modeling and Simulation Using CFD and Bekker’s Methodology," SAE Technical Paper 2021-01-0252, 2021, https://doi.org/10.4271/2021-01-0252.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Dugoff , H. Vehicle Egress From Streams—A Mathematical Model Journal of Terramechanics 4 4 17 29 1967
- Jurkat , M.P. 1974
- Flom , B.D. 2010
- Gerigk , M. , Abramowicz-Gerigk , T. , and Burciu , Z. Practical Aspects of Design and Operation of Amphibious Craft for Rescue Purposes Mechines Technologies Materials 9 15 18 2013
- Vantsevich , V.V. , Gorsich , D.J. , Paldan , J.R. , and Sandomirsky , S. Water-Egressing Mobility of an Amphibious Vehicle With a Controllable H-Driveline International Design Engineering Technical Conferences and Computers and Information in Engineering Conference 59216 V003T01A003 American Society of Mechanical Engineers 2019
- Tasora , A. , Serban , R. , Mazhar , H. , Pazouki , A. et al. Chrono: An Open Source Multi-Physics Dynamics Engine International Conference on High Performance Computing in Science and Engineering 19 49 Springer Cham 2015
- Mazhar , H. , Pazouki , A. , Rakhsha , M. , Jayakumar , P. , and Negrut , D. A Differential Variational Approach for Handling Fluid-Solid Interaction Problems via Smoothed Particle Hydrodynamics Journal of Computational Physics 371 92 110 2018
- Serban , R. , Taylor , M. , Negrut , D. , and Tasora , A. Chrono: Vehicle: Template-Based Ground Vehicle Modelling and Simulation International Journal of Vehicle Performance 5 1 18 39 2019
- Siemens Technical Staff 2020
- Oosterveld , M. , Cornelis , W. , and van Oossanen , P. Further Computer-Analyzed Data of the Wageningen B-Screw Series International Shipbuilding Progress 22 251 251 262 1975
- Tison , N. 2019
- Wong , J.Y. Theory of Ground Vehicles John Wiley & Sons 2008