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  1. shushu007

    case for outdoor antenna

    im designing case for outdoor antenna It should stand wind forces and temperature from Khartoum to Alaska and UV degradation the antenna size is 60x60x10 cm what the recommend material for this application? what the appropriate wall size for the antenna case?
  2. shushu007

    sealing for outdoor case

    I designing the mechanics of an antenna, the case of the antenna material would be from plastic, and have to be seal for 20 years in temperatures -40 c~50 c what kind of o-ring of other sealing method should i use?
  3. shushu007

    Free body analysis

    here calculation of beam natural frequencies at different fixing and free beam http://web.mit.edu/2.75/fundamentals/FUNdaMENTALs%20Book%20pdf/FUNdaMENTALS%20Design%20Spreadsheets/Topic%208%20Structures%20Design%20Spreadsheets/Beam_frequency.xls in beam fixing one end of the beam reduce the...
  4. shushu007

    Free body analysis

    Is it good practice to model body that have constraint as a free body for resonance analysis?

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