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2 years ago in Environmental Economics By Pavitra
What engineering standards specify the procedures and coefficients for calculating wind load torque on a rotating parabolic antenna for motor sizing?
I'm specifying the drive motors for a 3-meter parabolic dish on a motorized azimuth-elevation mount. I need to calculate the worst-case wind torque to size the motors, gearboxes, and brakes. I've heard of EIA/TIA-222 and IEC 61400-2, but I'm not sure which is most applicable for antennas (vs. towers or wind turbines). Do these standards provide drag coefficients (Cd) for parabolic dishes at various angles of attack, and specify how to calculate the torque arm from the center of pressure? Is there a standard wind speed (e.g., "survival" vs. "operational") I should use for motor torque vs. brake holding torque?
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By Jyotsnamayee Nayak Answered 1 year ago
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