Font Size: a A A

Research Of Reaction Wheel Disturbance Vibration Technology Of Satellite

Posted on:2014-09-16Degree:MasterType:Thesis
Country:ChinaCandidate:J YangFull Text:PDF
GTID:2252330422451267Subject:Aircraft design
Abstract/Summary:PDF Full Text Request
In this paper, micro-spacecraft reaction wheel vibration damping.First, reaction wheels structure analysis, research reaction wheel disturbancecauses through the creation and analysis of reaction wheel disturbance model, getreaction wheel disturbance specific parameters for subsequent research provided thebasisThen use the ANSYS finite element software, the establishment of a satellite in spaceenvironment finite element model, the loading caused by the reaction wheel disturbanceforce, the simulation analysis, the reaction wheel power disturbance caused by satellitemicro-vibration properties. Focus on analysis of satellite camera vibrationcharacteristics.Then the analysis result for the last chapter, each sub-section through analysis ofsatellite elastic modulus of the vibration characteristics of satellites, to find the mosteffective for damping the satellite component optimization to find the optimumdamping elastic modulus, and ultimately the excellent damping solution. The satellitemodel has sufficient structural rigidity to carry out the subsequent passive dampingstudies.Then for a single damping reaction wheel for research, various degrees of freedomfor the traditional passive damper coupled to each other, resulting in decreased dampingeffect of the shortcomings of the design of a passive damping of each degree of freedomdecoupled system. Then the passive damper to optimize the various parameters, andultimately achieve optimal damping.Finally axis stabilized satellites are generally composed of a plurality of reactionwheel attitude stabilization system for a plurality of damping reaction wheel conductresearch that will more tightly packaged in a reaction wheel mounted box, a plurality ofdamping reaction wheel seen as a whole research. Investigate passive damping systemfor multiple reaction wheel disturbance damping effect.Based on the reaction wheel disturbance caused by micro-vibration analysis,design of a six DOF motion decoupling passive damping system, the satellitemicro-vibration damping meaningful.
Keywords/Search Tags:reaction wheel, disturbance, vibration suppression, finite element analysis
PDF Full Text Request
Related items