Research Of Aeroengine Damping Transport Equipment

As a very expensive high precision equipment,the internal components of the aircraft engine are very complicated,with a large number of thin-wall and high-precision blades applied in it.During the process of the engine spinning,the engine will inevitably be disturbed by the external vibration during the transportation process due to the uncertainty of the ground road.How to effectively reduce the impact of the external vibration on the internal engine of the engine in the precondition of ensuring the efficiency of transportation,has a very significant engineering value in the practical application.In this paper,aiming at the problems existing in the domestic common suspension transportation device,on the basis of the research at home and abroad related technologies,improved design,puts forward a new process method,developed the new suspension transportation device,and has carried on the comparison,the performance of the main research contents and results are as follows:1.The engine structure were analyzed,and the overall scheme design,determines the aircraft engine suspension placed on the bottom bracket,altogether four groups will be 8 to shock absorbing device placed between the bracket and at the bottom of the packing box,make them form a kind of aeroengine in the damping device suspended structure.2.Bracket for the whole damping device for the determination of the center of mass and checking,according to the nonlinear characteristics of rubber-steel composite damping device unique,according to the related theory of mechanical vibration,based on the characteristics of wire rope shock absorbing device,targeted to the characteristics of the static stiffness test,the two kinds of static stiffness characteristic curve of different types of shock absorber.Through comparative analysis,the rubber-steel composite damping device of hysteresis loop of the envelope area significantly greater than pure steel wire shock absorbing device,and can absorb external impact effect is superior to pure steel wire rope suspension device.Based on the experimental study,this paper built up the finite element vibration modal analysis of the shock absorbing device,analysis of the data show that this new type of shock absorber damping under different road conditions effect is good.3.In order to further study the shock absorber damping performance,the paper has carried on the real vehicle weight damping performance contrast test experiment,comparing the new and old two different types of shock absorber in the same transport conditions by the amount of vibration and acceleration value,and simulate the real load engine state,for simulating actual cargo status.In addition,the data were collected in three transportation states: on the highway,the vehicle was traveling at a speed of 70Km/h,80Km/h and normal driving in the inner city(the speed was 25km/h ~ 60km/h).The vibration volume of vibration frequency less than 610 Hz in each transport mode is compared and analyzed.The damping performance of a new type damping device is determined from the magnitude.Through the experimental research work,and got a series of shock absorber damping performance of the test data,proved that the device has good shock absorption performance,for the subsequent laid a good foundation for engineering application.