Dynamic Simulation of Legacy Weapon Systems

1. Dynamic Simulation of Legacy Weapon Systems Michael J. Daniti Eric A. Binter Weapons Technology Branch Weapons Technology Branch Small and Medium Caliber Small and Medium Caliber Weapon Systems Division Weapons Systems Division US Army ARDEC US Army ARDEC Bldg 65N Bldg 65N Picatinny Arsenal, NJ 07806 Picatinny Arsenal, NJ 07806 973-724-5223 - mdaniti@pica.army.mil 973-724-8074 – ebinter@pica.army.mil

2. MODEL DATA VALIDATION Objectives • Develop dynamic simulation core competency • Create Models Supporting In-house Engineering Decisions • Accurate Model Development - Predictive Capability • Verified Data Sets • Validated Model Performance – “Live Fire” Comparison

3. Definitions • Modeling: A schematic description of a system, theory, or phenomenon that accounts for its known or inferred properties – Drawings, 3D models • Simulation: Predict aspects of the behavior of a system by creating a mathematical model including reactions and interactions • Kinematics: The branch of mechanics that studies the motion of a body or a system of bodies without consideration given to its mass or the forces acting on it – motion without interactions • Dynamics: The branch of mechanics that covers the effects of forces on the motion of a body or system of bodies, especially of forces that do not originate within the system itself – motion with impacts and interactions • ADAMS:Automatic Dynamic Analysis of Mechanical Systems. Systems-based kinematic and dynamic analysis tool

4. M9

5. M9

6. M9 • Capabilities of model

7. M16

8. M16 • Crawl – Walk – Run Strategy

9. M16 • Crawl – Walk – Run Strategy

10. M16 • Crawl – Walk – Run Strategy

11. Model Capability • Not just for making pretty pictures • Displacements • Translational and Angular Velocities • Translational and Angular Acceleration • Potential and Kinetic Energy • Momentum • Forces and Torques

12. Current Projects • Completion and Validation of M9, M16, M249, and Mk19 Dynamic Models • Green Ammunition Initiative • M4 Buffer Analysis • 5.56mm 30rd Magazine Analysis • Mk19 40mm Practice Round Analysis • Mk19 40mm Non-Lethal Round Analysis

13. Future Work • Generate M2 & M240 Dynamic Models • Incorporate flexible bodies into models Future Capabilities • Contaminant Simulation • Fatigue Analysis with MSC.Fatigue

14. Questions?