Analysis of sinusoidal vibration in mechanical environment of satellite Laser communication terminal telescope

Sinusoidal vibration is the most severe mechanical environment experienced during the mission period of the satellite laser communication terminal telescope, and it is also the difficulty and emphasis of the prediction of the environment of the satellite laser communication terminal telescope. Based on the satellite laser communication terminal telescope sine vibration test appraisal level conditions using Solidworks software model of the organization of the telescope, for X, Y, Z three directions of sine sweep, finite element analysis software can be simulated by harmonic response analysis, through the way of input frequency sweep acceleration amplitude, the sinusoidal response to a certain frequency range is analyzed. Sinusoidal analysis and impact response analysis show that the internal deformation of the model is small and the stress is less than the allowable stress of the structural materials. When subjected to impact response, the maximum stress of glass lens is 21Mpa. Meet the use requirements under the given mechanical environmental conditions.