Sa Deployment and Geometry Maintenance o Truss structures High strength to weight ratio due to large cross-sectional area moment of inertia Moment= el ax o Deployable booms able engineering a bearing ring at the mouth of the deployment canister deploys pre- folded bays in sequence EX SRTM mission on Shuttle Handout gives key relationships between I, El and truss diameter °ota/ system mass canister mass fractionDeployment and Geometry Maintenance Deployment and Geometry Maintenance  Truss Structures — High strength to weight ratio due to large cross-sectional area mom ent of inertia  Deployable Booms (ABLE Engineering) — A bearing ring at the m outh of the deployment canister deploys pre-folded bays in s equence — EX: SRTM mission on Shuttle Moment = EI ∂2 w ∂x 2 Handout gives key relationships between l, EI and: •truss diameter •total system mass •canister mass fraction