52 nd FUZE CONFERENCE. Presented by: Mr. Perry Salyers

Transcription

1 52 nd FUZE CONFERENCE Presented by: Mr. Perry Salyers May 13-15, 2008

2 OUTLINE ERGM System Overview ERGM System Operation M982 System Overview M982 System Operation System Target & Excalibur Characteristics M982 Fuzing System S&A Technical Requirements MIL-STD-1316 Compliance Excalibur FSA Time Line Excalibur FSA Logic Design Fuze Safe & Arm Description S&A Mechanical Design S&A Electrical Design Electrical Module S&A Integration S&A Explosive Outputs HOB Sensor Description FS&A Description Program Test Results / Milestones ESAD Development Status 2

3 Tail Fin Assembly Ram Brake EX171 ERGM Tactical System Ramming Sheath High L/D Stable Airframe Mid-body Obturator Payload Flight Battery Control Actuation System (CAS) Pressure Balanced Rocket Motor Data Hold Power Source High Explosive Safe and Arm Device Telemetry Height-Of-Burst (HOB) Fuze Digital Communications Interface (DCI) Canards Inertial Measuring Unit GPS Receiver Anti-Jam Electronics Guidance Electronics Unit (GEU) 3

4 EX171 ERGM OPERATIONAL CONCEPT ERGM Projectiles Conventional Projectiles Beach Head Landing Zone Artillery LAVs Air Defense Troops Helo Landing Zone Missile Batteries Conventional Extended Range Guided Munition 6 0 Nautical Miles Bunkers 4

5 Excalibur (M982) System Overview Characteristics/Description: 155MM Extended Range guided projectile Fin Stabilized Glide Air Frame Inductive Set with Enhanced Setter Inertial Navigation System (INS) Guidance All Weather, Day and Night Compatible with JLW155 & FCS Digitized 155mm Platforms One Meter Length / 106 lb Warhead: Unitary Accuracy: 10m CEP objective Range: 40Km objective Targets : Personnel, light materiel, structures Fuze modes: PD, PD delay, Prox Environments: 15.5 KG set back Early fielding ~12KG 50+ KG penetration 5

6 Excalibur Unitary Concept of Operations Deploy Canards prior to Apogee (Ballistic prior to Apogee) Precision Delivery Regardless of Range Limits Collateral Damage Decreases Volume of Fire Per Engagement Enhances Soldier Survivability Guidance Acquisition and Track System Initialization Fragmenting Warhead Impact Near Vertical for Max Lethality Mission Planning Gun Target Location Trajectory Information Crypto Keys Precise Time Fuze Setting Power Latitude / Longitude / Altitude Structure Top Attack (Detonation after Penetration) Targeting Height of Burst Sensor Fragmenting Warhead or Top Attack Penetrating Warhead depending on the target 6

7 Excalibur Characteristics Unitary Targets ~10m CEP Same lethality as an 155 mm HE Infantry Platoon Excalibur: 3 rounds M549: 25 rounds M107: 43 rounds System used in a complex target environment! Excalibur at any range M549 at 20Km M107 at 15Km Command Post Excalibur: 6 rounds M549: 54 rounds M107: 78 rounds Radar Excalibur: 1 round M549: 10 rounds M107: 11 rounds Structures Excalibur: 3 rounds M549: 147 rounds M107: 110 rounds 7

8 Excalibur Fuzing System (FS&A w/hob) 8

9 FS&A REQUIREMENTS Projectile Application All Arm - 1,700 G s No Arm G s Spin Interface With GN&C MIL-STD-1316 Compliant ERGM and Excalibur Mechanical S&A 9

10 Excalibur FSA /Flight Timeline 3. Arm Power Available Canards Deployed 4. Measure Spin Cmd to FSA 5. Valid 2 nd Arming Environment 2. Initialize FSA 6. Pass Det Mode to FSA 8. Arm Command To FSA 7. Power Up 9. Detonate HOB (Optional) T1 3 SEC Electronics Battery Powerup Safe Separation Timer Projectile Flight (Unarmed) Projectile Flight (Armed) 10

11 Excalibur FSA Logic Diagram IMPACT DELAY IMPACT FPGA OUTPUT HOB Sensor Launch Acceleration ARM Energy 1st Lock (Setback) Removed Armed S&A Independent Safe Separation Timer 2nd Lock Removed Detonate Logic Power FPGA Power Up/Reset/BIT Logic Functions Safe Separation Timer CHARGE Charge & Fire P.A. Recharge Fireset SPIN SIGNAL SYSTEM COMMANDS Battery Power SYSTEM COMMANDS Initialize Detonation Mode Measure Spin Arm 11

12 Excalibur Fuze Safe & Arm (FSA) Description Key Features FSA consists of electronics module and mechanical module First Arming Environment is setback acceleration implemented mechanically Second Arming Environment is detection of de-spin event using a g switch Safe separation via independent timers Point Detonate fuze is implemented by a g-switch opening at impact. Delay after Point Detonate implemented by electronic timer HOB function implemented by RF proximity sensor using production fuze components Mechanical Section Out of Line Mech Setback G-switch Rotor Control Detonator Shorting Detonator Output Lead Electronics Section FPGA Power Up Logic Power Separation Timing Circuits Spin Sensing Arming Control Firing Control DIA FSA Design Approach Concurred by Army & FMV Fuze Boards 12

13 S&A MECHANICAL DESIGN APPROACH Mechanical S&A Design Approach Modified MK18 S&A Higher G Loads AFT Detonation Output Switches Indicate Rotor Position Integrated Electronics Control Three (3) Leaf Set Back Mechanism Second Rotor Lock (Safe) Leaf Lock Rotor Drive Spring First Rotor Lock (Safe) Rotor Lock (Arm) 13

14 S&A ELECTRICAL DESIGN APPROACH S&A Electronics RS232 Serial Communication Link Codeword Controls Function GN&C Second Rotor Lock W/PA Second Safety & Arm Lock Safety Button Set Back Lock Piston Actuator Rotor W/Switches & M84 Detonator 14

15 Excalibur Electronic Flex Assembly Module Spacers Spin Switch Independent Timer Impact Switch Fire Capacitor FPGA 15

16 Excalibur FSA Electronic Sub-Assembly Housing Alignment pin Connector (Interface with Mechanical S&A) Potting Fill Hole Cap (Pressed Into Housing) RTV Potting around Spin Switch 16

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18 Excalibur FSA 18

19 Explosive Train Gap =.000 /.020 Gap =.024 /.047 Gap =.037 /.095 Booster (1 Ø by 1 ) M84 Detonator PA509 Lead (.194 Ø by.37 ) (.242 Ø dia by.980 ) Stainless Steel /.012 Thick 19

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21 FSA Design Summary Resulting Capabilities Meets MIL-STD-1316 Interactive W/ GN&C Maximized Overhead Safety Independent Timer Arm Command issued Just Prior to Endgame Excalibur was Fielded in May 2007 for Operation Use M982 ERGM 21

22 S&A Program Milestones M982 (Excalibur) S&A Completed Design Analysis, Design Verification Testing, Qualification, and AFSRB Certified The Excalibur System was Fielded in May 2007 and is Currently in Operational Use KDI is Under Contract to Develop a Low Cost ESAD Alternative S&A Design ERGM S&A Finished DVT ERGM has been terminated. The requirement for a guided extended range munition is still valid. NAVSEA is currently restructuring the program. 22

23 Excalibur ESAD Development Development team consisted of members from KDI, ARDEC fuze group at Picatinny and Adelphi Development program objectives accomplished Drop-in replacement with existing S&A Lower Unit Production Cost Increased reliability Hardware tests used to mitigate initial high risk areas 1 st Environment sensor designed, developed and tested AFSRB informal and formal review completed Preliminary Design Review completed Electrical and mechanical design completed Functional hardware fabricated and tested Explosive function test success ARDEC airgun and railgun mechanical shock tests successfully completed (gun launch simulated) EGLIN AFB howitzer hard target penetration tests successfully completed 23