Development Of Simulation Test Platform For Stator Blade Regulating Mechanism And Its Characteristic Analysis

As the core mechanism of engine,the characteristics and test structure of stator blade regulating mechanism are of great significance to the whole development and design process.Multistage angular features between blade and blade at the same level of consistency problem,the influence of the radial size of angular features,associative ring and radial flexible characteristic of rigid body model,the influence of the strength of the radial component problems,tie rod and the thermal effects of angular joint ring features such as,the simulation operation of the integration of rapid processing,and the influence of the experimental design of these problems is the regulating mechanism designTo factor,but now the experimental platform are from the component level and simple principle parts,is not difficult to simulate the real structure is difficult to test wiring.Based on the above problems,this paper designed a regulating mechanism simulation test bench,and carried out dynamics modeling,software development,and test research on the design of the test bench.The main research contents of this paper are as follows:(1)based on existing simulation test bench,this paper expounds the circumference of a circle and the circumference of a circle between configuration,set up a kind of circular vertical level 4 blade simulation test bench,this paper discusses the actuating cylinder as driven by way of installation and connection between various driving components,mainly study the installation location of the lining sleeve for the polyimide on both ends of the blades,The radial force and blade torque are used to replace the wind pressure load.(2)the principle of the motion simulation,simulation test bench for the blade,rocker,rocker arm,lever Angle range,contrast the under actuator cylinder driving Angle changes between different components,contrast analysis of the dimensional accuracy and driving conditions on the influence of the blade Angle,illustrates the radial component size precision of vane Angle and angular velocity of the biggest impact.(3)The rigid and flexible coupling analysis was carried out considering the rocker arm and linkage ring.The acceleration of the component and the force of the moving pair generated by the same rigid body model were compared.The strength requirements of the rocker arm component were verified by the dynamic stress method.The difference between the blade swing Angle under the condition of thermal deformation and that under the condition of normal temperature was studied,and the influence law of rocker arm and linkage ring flexibility on the blade swing Angle and angular acceleration was obtained.(4)The background optimization of the pre-processing editing and definition process was carried out by means of ADAMS secondary development.The multi-step selection was assembled into the window for one-key processing,and the piston rod length and the coordinate value of the driving point in the driving part of the simulation test bench were optimized.A dialog box corresponding to model display and hiding,component material attribute definition,drive function editing and motion pair image,component centroid image and drive image was established in the pre-processing process of the simulation test bench.The pre-processing efficiency was improved,and background instructions were integrated to optimize the length of piston rod and the position coordinates of drive point.lt improves the stress state of the whole simulation test platform.(5)Through testing the Angle of four blades,the relationship between the Angle of each blade at the same position and the driving stroke is obtained,and the accuracy of modeling and simulation is verified.The strain measurement of rocker arm,outer rocker arm,inner rocker arm and transmission connecting rod is carried out by the NI.MAX test system,which provides experimental support for the design of the simulation experimental platform of regulating mechanism.The consistency of the rotor angles of blades of the same stage and non-same stage was tested by the IMU560-integrated inertial navigation system.The results show that the consistency of the rotor angles of blades of each stage is good,and the yaw angles of blades of each stage along X axis and Y axis are also measured,which provides experimental support for the assembly precision of blade assembly.