The Mechanical Design of the Second and third Antarctic Survey Telescope Wen Haikun
Outline 1. The Tube Design 2. The Drive System Design 3. The Low temperature test 4.The AST3-3 Mechanical Design
Sealing Structure Temperature compensation Structure Titanium alloy The Tube Structure Design
Bending angle Corrector mirror:2.84″ Primary Mirror:2.12″
Primary Mirror Supporting Structure 9 point whiffle tree structure Fixed position in the middle hole. Flexure supporting structure
The stress and the deformation of the Mirror shape The max stress value :0.425Mpa The defromation of the mirror surface shape: PV Value :43.7nm ， RMS Value:7.2nm 。
The focal plane System Switch the filter Auto-focus system Thermal dissipation
Deformation of the drive system Deformation in the east-west direction Max displacement: 0.935e-04mm Deformation in the north-south direction Max displacement : mm
Buffer and limit position structure
Reducer improvement Increase the rigidity of the reducer The lowest frequency :14.8Hz
The Low temperature Test
Mo He winter test
Picture in the Anatarctic
The tube of the third telescope Move the CCD to the outside of the tube Solve the heat problem easy to install and maintain
The drive system of the third telescope Adjust the gaps of the gear Increase the rigidity of the reducer
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