Research On Modeling And Simulation Of Tethered Balloon Retraction System

Long air dwell time,makes the tethered balloon can be continuously monitored near Earth Objects.The tethered balloon mooring platform,as the main body,is playing an important role in homeland defense.On the other hand,the long air dwell time,and the changing load make challenge to device in the ground.In this paper,a retraction system for tethered balloon is studied,and analysis of the reason of rope disorder and its influence,proposed the tethered balloon retraction system row cable mechanism and a tension releasing mechanism scheme.Combined with the specific conditions,design a reasonable strategy for driving the balloon mooring deployment system.When the design parameters of the tethered balloon retraction system is established,created the virtual prototype of the tethered balloon retraction system,and has carried on the kinematics and dynamics simulation.Finally,carried out experiments on physical prototype,the experimental results are consistent with the simulation results,verify the feasibility of the virtual prototype technology.The main structure and research contents of this paper are as follows:In the first chapter,introduced the research background and development trend of tethered balloon retraction system firstly,analysis the research status at home and abroad tethered balloon retraction system carefully.The significance and necessity of the research are briefly described,and the main research contents of this paper are established.In the second chapter,analysis the phenomenon and impact of rope disorder carefully.Tension aggravate disorderly rope for cable damage,therefore,this paper proposes an efficient scheduling and cable tension release scheme.At the same time,considering the negative load conditions of the tethered balloon,choose a more reasonable design scheme for the hydraulic drive.Negative load balancing circuit,motor backup circuit and load sensing technology are embodied in the circuit.In the third chapter,according to tethered balloon retraction system specific technical requirements,on cable arranging mechanism and a tension release of main geometric parameters of mechanism design,determine the drive components of the load conditions.In the fourth chapter,according to the geometric parameters which is design in chapter 2,created three-dimensional model of tethered balloon retraction system in SolidWorks,and imported the three-dimensional model into Adams,created the virtual prototype of the system.Through the simulation of the virtual prototype analysis,the storage winch and tension releasing mechanism movement is obtained.In the fifth chapter,the planetary gear reducer is analyzed,and the stiffness coefficient of each gear set is calculated.Based on the collision theory,re-established the virtual prototype of the tethered balloon retraction system.Under the condition of stable load and impact load,the force and movement condition of each gear of planetary gear reducer are analyzed.In the sixth chapter,made the test of tethered balloon retraction system’ load characteristic and speed characteristics.The test results show that the design meets the design requirements.On the other hand,the test data is consistent with the kinematics and dynamics simulation results,which shows that the virtual prototype technology has broad application prospects in the process of product development.Finally,made the summary of the full text,and describe future research direction and some aspects may need to study.Throughout the text,tethered balloon retraction system were scheme and catch its design parameters,the virtual prototype of the tethered balloon retraction system was created based on ADAMS,important transmission parts of the kinematics and dynamics simulation data is obtained;finally,the prototype of the load characteristics and speed characteristics test is established.The test results show that the design of tethered balloon retraction system meet the design requirements.At the same time,test data and simulation data consistent,indicating that kinematics and dynamics simulation results have higher credibility,can provide the basis for the optimization design of tethered balloon retraction system.