Shipborne photoelectric rotary table design and feasibility analysisunder specific environment

Combined with the technical requirements of shipboard photoelectric turntable, its mechanical structure was designed by pro/E software. According to the surface material of the turntable, the surface deformation vibration under special environment such as the equivalent marine static wind load, extreme temperature and vibration waves was analyzed by ABAQUS, in order to test the stress and strain of structure and ensure that the need of design accuracy for shipboard photoelectric turntable can be satisfied.Results show that the maximum stress point under the equivalent marine static wind load is 255 MPa which is less than the yield strength of steel(355 MPa); the maximum stress point under temperature difference is 174.8 MPa and 247.1 MPa, respectively, which are both less than the yield strength of aluminum alloy (274 MPa); the position of the maximum deformation of 1~5 vibration mode under vibrating waves are not near the vicinity of the shaft.