Linear Coupled Loads Analysis

Case histories include:

• Minotaur CLAs (ORS, NASA, DesignNet, Instar, Orbital): ASD was tasked to develop payload envelopes for certain classes of DoD payloads, the goal being that such payloads could benefit from a greatly simplified flight certification process. Payload variations included mass, C.G., and frequencies for both isolated and hard mounted payloads. Flight events included pre-ignition, liftoff, transonic, supersonic and second stage ignition. ASD conducted over 600 CLAs, made possible only by the enabling technologies in its ASD/CLAS software, in a short period of time. The payload envelopes are germane to a particular launch vehicle.
• Constellation CLAs (NESC, NASA/Langley, ATK): ASD was tasked to conduct linear and nonlinear CLAs in support of the MLAS alternate astronaut escape system for the Orion spacecraft. Utilizing ASD/CLAS, ASD was able to quickly conduct and turnaround the required linear and nonlinear CLAs and provide the NESC with all requested data. The CLAs involved flight vehicle separation from the launch stool at multiple cant angles utilizing the Henkel-Mar pad separation method. Flight events included ignition, pad-separation, liftoff, max air loads, and boost ring separation.
• Space Shuttle Mission ULF1.1 IV&V CLA (Lockheed Martin): Independent verification & validation (IV&V) coupled loads cycle and recover of MPLM loads for ULF1.1 Cycle 3.
• Space Shuttle Mission 12A.1 CLA (EADS, Spacehab): Multiple design CLA cycles
• Space Shuttle Mission 13A.1 CLA (EADS, Spacehab): Multiple design CLA cycles
• Space Shuttle Mission ULF1.1 CLA (EADS, Spacehab): Multiple design CLA cycles
• Space Shuttle Mission ULF1.1 IV&V CLA (Spacehab, EADS)
• Space Shuttle Mission 12A.1 IV&V CLA (Spacehab, EADS)
• Space Shuttle Mission LF-1 IV&V CLA (Lockheed Martin)
• Space Shuttle CLAs to validate proposed ASD isolated cross-bay carrier design concept (Blackhawk, NASA)