PDR Plan Structure/Power Group 1Group Objective • Identify high risk elements • Explore and test potential design options • Develop preliminary subsystem design 2Task Breakdown iiVeh cle Casing Magnetic Shielding Air Bear ng Power Structure & Power 3High Risk: Structure • • • • Magnetic Shielding: • magnetic field • Must not interfere with controlling forces • • Strength in case of collision • Thermal considerations due to magnet heating • Total mass consideration Air Bearing: Vehicles must obey Flat-Floor rules of contact Development and procurement time Shield crucial electronic subsystems from electro-Vehicle Casing: 4Action Items: Air Bearing • Research • Flat Floor Facility contact rules • Tolerance on air cushion thickness • • Air bearing procurement time • Cost of bearing set-ups: manufactured and purchased Profile of air cushion thickness with changing mass If we decide to fabricate these ourselves we will also have to have made cad drawings of our air bearings. 5Action Items: Shielding/Casing • Obtain information and/or sample materials from shielding vendors and conduct tests. • Decide upon shielding material and vendor. • Brainstorm subsystem interfacing configurations. • Decide on material(s) for casing. Magnetic shielding tests will be conducted by placing electronics next to electric fields and observing behavior when shielded and unshielded. Configurations should include access panels. 6High Risk: Power • necessary power. • Providing between individual subsystem components (via voltage regulators). Finding batteries that will provide the Power for this system will be much more challenging than was for the previous project, SPHERES, because of the high power draw from the electro-magnets. 7Action Items: Power • Obtain power requirements and/or dependable estimates from each individual subsystems. • Investigate battery types. • Investigate interfacing methods. 8Group Milestones To date: • Met with Paul Bauer re: air bearing set-up and tests. • Contacted shielding and air bearing vendors. • Contacted requirements team re: flat floor rules. • Ruled out solar power as a possibility. PDR: • (CAD drawings). • Finalize vehicle mass. • Place orders for experimental materials/components. • Baseline high level vehicle casing design Construct power model.
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