AMCOM MK66 Guidance Module

EECE – Course Differentials Compute actual vs. intended course Compute actual vs. intended course Simulated “actual” courseSimulated “actual” course Pre-plotted intended coursePre-plotted intended course Real-time differential updateReal-time differential update

Plotted deviation in course Deviation Actual Course Original (intended course) Vertical distance (ft) R/L deviation (Y) Forward distance

Next Week Continuing research for interfaces Continuing research for interfaces Start on course corrections with forces from canards Start on course corrections with forces from canards Physics modeling with correctional forces Physics modeling with correctional forces

Searching for Servo Motors Brush Motors: Brush Motors: Airgap diameter: 0.7”- 48”Airgap diameter: 0.7”- 48” Peak Torque Range: 2.8 oz in to 6 k lb/ftPeak Torque Range: 2.8 oz in to 6 k lb/ft Brushless Motors: Brushless Motors: Airgap diameter: 0.4”- 48”Airgap diameter: 0.4”- 48” Peak Torque Range: 1.5 oz in to 50 k lb/ftPeak Torque Range: 1.5 oz in to 50 k lb/ft

SL-MTI Brush(+less) DC Motor Brush Motors (for specialized motors) Brush Motors (for specialized motors) Have specs.Have specs. Brushless Motors (for high performance) Brushless Motors (for high performance) Used in missile fin actuation, and smart bombUsed in missile fin actuation, and smart bomb Have specs.Have specs.

Brushless DC Servo Motors (Dahaher Motion) Kollmorgen-Inland Motor Kollmorgen-Inland Motor Suited for special environments (high alt, exp)Suited for special environments (high alt, exp) Inside out configurationInside out configuration Better heat dissipation, lower rotor inertia, faster response Better heat dissipation, lower rotor inertia, faster response Interior permanent magnet designInterior permanent magnet design Allows for high reliability and low inertiaAllows for high reliability and low inertia Highest torque/inertia ratios, high speed capability (20 k to 70 k rpm)Highest torque/inertia ratios, high speed capability (20 k to 70 k rpm) Direct Drive Motors: (looking into)Direct Drive Motors: (looking into) MTBF 50,000 hrs MTBF 50,000 hrs Reduce maintenance Reduce maintenance

Brushless DC Servo Motors (Aspen Motion Technologies) Standard "Platform" frame sizes Size 10 (1.0" OD) Standard "Platform" frame sizes Size 10 (1.0" OD) Getting specs on size 10, have size 13 (1.3” OD)Getting specs on size 10, have size 13 (1.3” OD) Power range fractional to 35 HP Power range fractional to 35 HP Motor speed range up to 100,000 RPM Motor speed range up to 100,000 RPM Motor Voltage range up to 350 Volts DC Motor Voltage range up to 350 Volts DC Special Criteria: low noise, submersible, explosion proof. Special Criteria: low noise, submersible, explosion proof. Options Brakes, encoders, gear boxes, custom shaft, custom winding, custom mountings. Options Brakes, encoders, gear boxes, custom shaft, custom winding, custom mountings. Magnet types: Ferrite, SmCo5, bonded Neo (NdFeB), sintered Neo. Magnet types: Ferrite, SmCo5, bonded Neo (NdFeB), sintered Neo. Commutation Types: Six step, Sine wave, sensorless Commutation Types: Six step, Sine wave, sensorless

Canard Actuation Forces Obtained appropriate aerodynamics text on Monday Obtained appropriate aerodynamics text on Monday Determined lift forces produced by each canard at 5 deg angle of attack Determined lift forces produced by each canard at 5 deg angle of attack Preliminary calculations for moments needed to actuate Preliminary calculations for moments needed to actuate Continuing calculations on drag forces due to complexity of supersonic speeds Continuing calculations on drag forces due to complexity of supersonic speeds

Guidance Forces “Guidance force is a lift produced by actuating canard “Guidance force is a lift produced by actuating canard Depends on the angle of attack and Mach number for supersonic speeds Depends on the angle of attack and Mach number for supersonic speeds C L =4α/(M 2 -1).5 C L =4α/(M 2 -1).5 L=.5ρV 2 A p C L Torque L=.5ρV 2 A p C L Torque M=1.1 L=35lb5.2 oz in M=1.1 L=35lb5.2 oz in M=1.5 L=26.5lb 9.3 oz in M=1.5 L=26.5lb 9.3 oz in M=2 L=30lb 16.9 oz in M=2 L=30lb 16.9 oz in

Cont… Visual of angle of attack Visual of angle of attack

Tasks for Next Week Determine the impulsive force due to aerodynamic effects Determine the impulsive force due to aerodynamic effects Determine drag forces on canards Determine drag forces on canards Calculate cross wind effects Calculate cross wind effects Finalize actuation mechanism Finalize actuation mechanism Narrow down list of servo motors to final candidate or two Narrow down list of servo motors to final candidate or two