design_final_h

design_final_h - EMFFORCE OPS MANUAL Space Systems Product...

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EMFFORCE OPS MANUAL Space Systems Product Development-Spring 2003 H Structures and Packaging (GG, TS) The packaging design represented the main task for the Structures team. The Structures team had to collect all of the necessary physical requirements for each subsystem and then feasibly and efficiently pack all these subsystems together. In order to feasibly and efficiently pack all the EMFFORCE subsystems successfully, the Structures team used a CAD modeling tool, as well as mock subsystems made out of paper, cardboard, and other simple materials. After finding a feasible configuration for the subsystems, the Structures team designed all of the attach points to ensure each subsystem’s physical requirements were met. H.1 Physical Packaging Requirements (GG) The requirements surrounding the packaging include: Physical requirements of all subsystems o Metrology: 360 degree unobstructed view o Communications: vertical antenna towards top of vehicle o Reaction Wheel: placed at center of electromagnetic force o Electromagnet: EM batteries must be physically close (within 15 cm) of EM power input leads o Vertical CO 2 tank orientation for gas carriage gas supply Packaging must be feasible o Maintain rotational symmetry, keep center of mass to within 1cm of axis of rotation o Keep mass towards bottom of vehicle for stability o Attach points must withstand forces exerted on them o Allow for easy replacement of consumables (batteries, liquid nitrogen, CO 2 tanks) o Keep mass and moment of inertia as small as possible (GG) H.1.1 Power (TS) The physical requirements for the power subsystem on-board each vehicle are as follows: 1 Voltage Regulator power board 2 Electromagnet power boards 1 Reaction Wheel power board 3 on/off switches for power boards (EM-1, EM-2, RW) 1 AA-cell battery pack (consisting of 8 or 16 AA batteries) Wires to connect Voltage Regulator board to AA batteries and other subsystems 3 D-cell battery packs for EM (each consisting of 3 D-cell batteries in series) 1 D-cell battery pack for RW (consisting of 4 D-cell batteries in series) Optional components: Massachusetts Institute of Technology 1 Dept of Aeronautics and Astronautics
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EMFFORCE OPS MANUAL Space Systems Product Development-Spring 2003 1 small fan for each EM, RW power board 1 extra D-cell battery pack for RW (placed in series with existing battery pack) H.2 Packaging Design (GG) The packaging design is comprised of a list of components and a plan for attaching them together into the EMFFORCE vehicle test-bed.
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This note was uploaded on 11/08/2011 for the course AERO 16.810 taught by Professor Olivierdeweck during the Winter '07 term at MIT.

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design_final_h - EMFFORCE OPS MANUAL Space Systems Product...

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