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Design, Manufacture, Transport and Integration on-site in Chile of ALMA Antennas

Design, Manufacture, Transport and Integration on-site in Chile of ALMA Antennas AAS-I Contribution to Analysis PM#06 Mainz – 18/19 July 2006. Thermal Analysis The CAD and FEM delivered by EIE at end of Concept Phase have been used for generating an updated GMM and TMM

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Design, Manufacture, Transport and Integration on-site in Chile of ALMA Antennas

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  1. Design, Manufacture, Transport and Integration on-site in Chile of ALMA Antennas • AAS-I Contribution to Analysis • PM#06 Mainz – 18/19 July 2006

  2. Thermal Analysis • The CAD and FEM delivered by EIE at end of Concept Phase have been used for generating an updated GMM and TMM • Thermal analyses, focused to thermal-distortion analysis, are being completed • Results of the foreseen eight thermal cases will be available for July the 23rd • The updated CAD and FEM, if needed, will be used for updating the GMM and TMM and re-run the analyses for PPDR

  3. FEM Analysis • The ANSYS FEM delivered by EIE at end of Concept Phase have been used for generating a new NASTRAN FEM • “Structural” Consistency of the two models have been verified comparing Normal Modes and Gravity distortion • “Thermo-elastic” consistency is being verified as well, comparing Antenna thermal distortion under a constant DT=20°C. for this scope the NASTRAN output has been delivered to EIE • The 11 wind load cases relevant to error budget have been run and output is being processed

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