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Development of a Modular, Open-Architecture, Open Source, Integrated, and Validated Mobility Prediction Capability

Description:

TECHNOLOGY AREA(S): Ground Sea, Electronics 

OBJECTIVE: Develop a Modular, Open Architecture, Open Source, Integrated, and Validated Mobility Prediction Capability that is suitable for on-and off-road trafficability assessment for commercial and military vehicles 

DESCRIPTION: Currently, the NATO Reference Mobility Model (NRMM) is the only NATO recognized numerical modeling tool for assessing mobility objectives, but it is also broadly understood to be theoretically limited and difficult to adapt to contemporary vehicle design technologies and to implement within modern vehicle dynamic simulations. The proposed capability will abstract and expand the basis for the legacy NRMM to define the Next Generation NRMM (NG-NRMM) to be any innovative mobility modeling and simulation capability (M&S) that develops and facilitates interoperation with current and evolving M&S capabilities including: geographic information systems (GIS), physics based vehicle dynamics, physics based terramechanics, vehicle intelligence, as well as uncertainty quantification supporting probabilistic M&S. Geographic information systems (GIS): which are critical to building the required terrains needed to support coalition mission planning and operational effectiveness analyses. Properly characterizing terrain is critical to generate accurate, operationally-relevant ground vehicle performance results using the Next-Generation NRMM (NG-NRMM). In order to achieve this, the NG-NRMM must be able to import and aggregate remotely-sensed Geographic Information System (GIS) data and generate terrains that can be analyzed in the NG-NRMM vehicle / terramechanical analysis software. physics based vehicle dynamics are critical to evaluating more accurately the system and sub-system level performance criteria. High fidelity physics based vehicle dynamics is critical to vehicle terrain interaction (VTI). At the same time capturing the accurate soil mechanical properties such as internal friction, cohesion are critical to evaluating soil such as soft soil and for VTI. This is possible with physics based terramechanics modeling. The emergence of intelligent ground vehicles and their dependence upon quantitative analysis of mobility has infused terrain vehicle systems modeling with a new relevance and broader scope than ever before. Mobility metrics and analysis for robotics and VI is a very active and prolific research area and is an essential element of a NG-NRMM from two application perspectives: 1) Inclusion of robotics and VI in mobility metrics and assessments for operational planning, acquisition, and design; 2) Embedding NG-NRMM models and metrics into robots and VI algorithms because they are standards for mobility assessment and decision making. Also Propagation of variabilities of terramechanics input parameters to mobility, such as speed-made-good, are critical for generation of stochastic mobility map With the research and development of the physics behind these capabilities as well as the rapid advancement of technologies such as high performance computing, this proposal of developing open architecture, open source, integrated, verified and validated mobility capability a reality. This capability will also enhance interoperability of ground vehicles used in multi-national missions. 

PHASE I: During the Phase I effort the contractor shall perform a feasibility study of NG-NRMM being any ground vehicle mobility modeling and simulation architectural framework that is applicable to the full range of vehicle geometric scales and shall able to model, geometric information systems, physics based vehicle dynamics, physics based vehicle–terrain interaction system, intelligent vehicles (autonomy), uncertainty quantification, verification and validation. 

PHASE II: During the Phase II effort contractor shall develop, demonstrate, and validate an NG-NRMM prototype capable of being any ground vehicle mobility modeling and simulation architectural framework studied in Phase I and shall provide, standard and evolving M&S methods, modular interoperability, portability, future expansion, verification and validation scales, benchmarks appropriate to multiple levels of theoretical, geometric, and numerical model resolution. 

PHASE III: The prototype developed under Phase II shall be fully developed and transitioned to commercialization of NG-NRMM capable M&S toolset with a potential to demonstrate on a Next Gen Combat Vehicle (NGCV) Virtual Prototyping project. Consisting of 55 members from 15 nations from both military and commercial entities in NATO NG-NRMM Research Group, this product has strong dual-use potential, and will be useful not only among defense industry, but also in commercial vehicle development industries. 

REFERENCES: 

1: Gorsich, D., et al., "The Next Generation NATO Reference Mobility Model Development," Paper No. STO-MP-AVT-265-11, NATO Specialists’ Meeting AVT-265/RSM-044 on Integrated Virtual NATO Vehicle Development, Vilnius, Lithuania, May, 2017 (Public Release), 42 pages, uploaded in SITIS on 12/13/17

2:  McCullough, M., Jayakumar, P., Dasch, J., and Gorsich, D., "The Next Generation NATO Reference Mobility Model Development," Proc. 8th Americas Regional Conference of the International Society for Terrain-Vehicle Systems, Troy, Michigan, September, 2016, 12 pages, uploaded in SITIS on 12/13/17

3:  Dasch, J., and Jayakumar, P., editors, "Next-Generation NATO Reference Mobility Model (NRMM)," 221 pages, uploaded in SITIS on 12/13/17

CONTACT(S): 

Srinivas Sanikommu 

(586) 574-5475 

srinivas.sanikommu.civ@mail.mil 

Paramsothy Jayakumar 

(586) 282-4896 

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