Future Research Directions in Military Ground Vehicle Mobility
1 like1,268 views
The document outlines the U.S. Army's Tank Automotive Research, Development and Engineering Center's (TARDEC) future research directions in military ground vehicle mobility, emphasizing the need for advancements in mobility modeling and simulation. It discusses challenges in current mobility models and the development of a next-generation NATO reference mobility model (NRMM) to improve vehicle-terrain interactions. Additionally, the document highlights research thrusts focusing on GIS-based mapping, terramechanics, intelligent vehicle metrics, and validation of modeling solutions.
Future Research Directions in Military Ground Vehicle Mobility
- 1. U.S. ARMY TANK AUTOMOTIVE RESEARCH, DEVELOPMENT AND ENGINEERING CENTER Future Research Directions in Military Ground Vehicle Mobility ISTVS September 2016 Dr. David Gorsich, ST/Ground Systems, Chief Scientist, TARDEC
- 2. Unclassified, Distribution A TARDEC – Then and Now 2 Early Mobility Studies Major Thrust Areas Today Mediu m Comba t Heavy Comba t Tactica l Power Dense, Common, Modular Engine Propulsion Protected Mobility Vehicle Architecture Autonomy
- 3. • Ground Systems Power and Energy Laboratory (GSPEL) • Vehicle Full Load Cooling Test Chamber • Crew Station/Turret Motion Base Simulator (CS/TMBS) • Ride Motion Simulator • System-level Analysis Capability • Center for Ground Vehicle Development and Integration (CGVDI) • Vehicle Inertial Properties Evaluation Rig (VIPER) • Mission Equipment Vibration Table (MEVT) • Suspension Parameter Identification Device and Evaluation Rig (SPIDER) • Tire, Run-Flat, and Roadwheel Simulation Laboratory (TR2SL) • Elastomer Improvement Laboratory • Fuels & Lubricants Laboratory • Fresh Water Test Facility • Bridge Dynamic Structural Load Simulation Laboratory • Anthropomorphic Test Drive (ATD) Certification Laboratory • Crew Compartment Underbody Blast Simulator • Foot Impact Test Fixtures • Head Impact Laboratory (HIL) • Sub-System Drop Tower (SSDT) • TARDEC Fuels and Lubricants Research Facility (TFLRF) (GOCO with SWRI) • Quality Surveillance Laboratory (Army Petroleum Laboratory; APL) Unique Facilities Laboratory Capabilities TARDEC’s operations have a resource value of over $1.1B and occupy 936,000 square feet of laboratory space on the Detroit Arsenal. TARDEC Fuels and Lubricants Research Facility @ Southwest Research Institute Turret Motion Base Simulator Ride Motion Simulator Power and Energy Vehicle Environment Lab Southwest Research Institute (SWRI) (TX) (GOCO = Government Owned-Contractor Operated )Selfridge (MI) Warren (MI) 3 Susquehanna (PA) Unclassified, Distribution A
- 4. AMRDEC Aviation and Missile Research Development and Engineering Center ARDEC Armament Research, Development and Engineering Center ARL Army Research Laboratory CERDEC Communications- Electronics Research, Development and Engineering Center ECBC Edgewood Chemical Biological Center NSRDEC Natick Soldier Research, Development and Engineering Center TARDEC Tank Automotive Research, Development and Engineering Center TARDEC Organizational Structure 4Unclassified, Distribution A Army Materiel Command (AMC) Assistant Secretary of the Army for Acquisition, Logistics, and Technology (ASA-ALT) Research, Development and Engineering Command (RDECOM)
- 5. Military Challenges are Unique 5Unclassified, Distribution A
- 6. Designing a Ground Vehicle • Start with Requirements – Mobility (Speed) – Payload (# crew, cargo weight) – Protection level – Lethality – Deployabilty • Deployment Method • Truck, Boat, Rail, Air • Fixes Maximum Weight and Size • Deployability limits the tradespace for the other requirements 6Unclassified, Distribution A
- 7. Iron Triangle - Example of Trades Performance (Mobility) Protection Payload Performance (Mobility) Protection Payload HMMWV MRAP 7 Strive to optimize 3 Ps • Protection • Payload • Performance (Mobility) Unclassified, Distribution A
- 8. NATO Reference Mobility Model (NRMM) 200019801950 19701960 1990 1954: Land Locomotion Lab established; led by Dr. Bekker Walking Machine 2010 1971: AMC-71 Mobility Model 1974: AMC-74 Mobility Model 1978: NATO Reference Mobility Model 2014: ET148, NG-NRMM 1992: NRMM II Autonomous Systems Land Locomotion 8 2016: RTG248 NG-NRMM 2019: NG-NRMM STANREC 2020 Multibody Dynamics Physical Simulators Unclassified, Distribution A
- 9. Next-Generation NRMM • Shortcomings of NRMM – Based on empirical observations so extrapolation is difficult – Specific to wheeled/tracked; No intelligence – Cannot assess contemporary vehicle design technologies – Steady-state and 2D analyses – Poor inter-operability with other terramechanics models – Difficult to integrate with modern vehicle dynamic simulations • Next-Generation NRMM – NATO Team formed in 2014 – 55 members from 15 nations participating – Goal: Investigate an efficient next-generation, physics-based simulation tool to more accurately predict mobility based on accurate depictions of vehicle, terrain, and their interactions 9Unclassified, Distribution A
- 10. Possible path forward – Next-Gen NRMM Develop scalable, physics-based modeling, simulation, and visualization capability for mobility in deformable terrain using discrete element methods and massively parallel architectures. 10 Fording simulation Discrete terrain simulation HPC Unclassified, Distribution A
- 11. Path Forward NATO Research Task Group 248 will carry forward six research thrusts: 1. GIS-Terrain and Mobility Mapping: Identify a GIS-based mapping tool that implements and integrates existing valid mobility metrics (%NOGO and Speed Made Good) in an open architected environment. 2. Simple Terramechanics:Identify most promising existing terramechanics methods supporting NG-NRMM requirements. 3. Complex Terramechanics: Establish a vision for the long term terramechanics approaches that overcome the limitations of existing models. 4. Intelligent Vehicle Mobility: Identify unique mobility metrics and M&S methods necessary for mobility assessments of intelligent vehicles. 5. Uncertainty Treatment: Identify the steps required to embed stochastic characteristics of vehicle and terrain data to extend the current deterministic mobility metrics. 6. Verification & Validation (V&V): Implement near-term vehicle-terrain interaction benchmarks for verification of candidate NG-NRMM M&S software solutions and lay the groundwork for long term validation data. Unclassified, Distribution A
- 12. Autonomy Levels for Unmanned Systems (ALFUS)* * H.-M. Huang, ALFUS, SAE 4S4D Committee Unclassified, Distribution A
- 13. On-Board Driver (16 mph max) Remote Driver (50 mph max) 6W Limit 19W Driver Vertical Acceleration 14 Rough Road Driving: Onboard vs. Remote Driver Unclassified, Distribution A
- 14. Mobility Enhancement: Human-Machine Partnership 62 mph 50 mph (19W) 16 mph (6W) Smooth Road: Engine Limit Rough Road/Remote Driver: Engine & Durability Limit Rough Road/On-Board Driver: 6W Limit 15Unclassified, Distribution A
- 15. Effect of Autonomy on Tradespace Enhanced Mobility Increased ProtectionPayload Increased Tradespace 16Unclassified, Distribution A
- 16. Latency: major issue in teleoperation Connectivity Round Trip Communication Delay Wired 10 ms (local), 300 ms (cross-country) Wireless Dependent on bandwidth and distance Satellite 500 ms (GEO) Video transmission 300 ms - 1000 ms (one way; frame rate dependent) 17Unclassified, Distribution A
- 17. Completion Time vs. Latency Speed vs. Latency 178 RunsLatency (s) Latency (s) 18 Teleop Mobility vs. Latency Challenge Unclassified, Distribution A
- 19. Building the Cybersecurity Competency 20 Penetration Testing Reverse Engineering Building New Tools Transitioning Research Integrating Commercial Tech Leveraging Public-Private Partnerships to Deliver Advanced Capabilities HACMS AMAS GVR-Bot (High Assurance Cyber Military Systems) HACMS is a shift away from “patch and pray” methods that approach cybersecurity from a reactive standpoint UNCLASSIFIED: Distribution Statement A. Approved for public release; distribution is unlimited. UNCLASSIFIED: Distribution Statement A. Approved for public release; distribution is unlimited.