US 10,760,448 B2 · Deep learning regulation and control and assembly method and device for large-scale high-speed rotary equipment based on dynamic vibration response properties

Abstract

The present invention provides a deep learning regulation and control and assembly method and device for large-scale high-speed rotary equipment based on dynamic vibration response properties. The present invention starts from geometrical deviation of multiple stages of rotor/stator of an aircraft engine, amount of unbalance of rotor/stator, rigidity of rotor/stator and vibration amplitude of rotor/stator, considers the influence of the area of the assembly contact surface between two stages of rotors/stators, and sets the rotation speed of rotor/stator to be the climbing rotation speed to obtain vibration amplitude parameters. According to the calculation method of the coaxiality, amount of unbalance, rigidity and vibration amplitude of multiple stages of rotor/stator, an objective function taking assembly phases as variables is established, a Monte Carlo method is used to solve the objective function, and a probability density function is solved according to a drawn distribution function to obtain the probability relationship between the contact surface runout of the rotor/stator of the aircraft engine and the final coaxiality, amount of unbalance, rigidity and vibration amplitude of multiple stages of rotor/stator, thereby realizing assembly optimization and distribution of tolerances of multiple stages of rotor/stator.

Claims5

Dependent claims

A deep learning regulation and control and assembly method for a large-scale high-speed rotary equipment based on dynamic vibration response properties, comprising:

step 1:
establishing coaxiality, amount of unbalance, rigidity and vibration amplitude models after multi-stage rotor and stator assembly;
step 2:
generating 10000 groups of contact surface runout data of each stage of rotor and stator according to a Monte Carlo method, substituting random numbers into coaxiality, amount of unbalance, rigidity and vibration amplitude formulae of multiple stages of rotor/stator, rotating a rotation angle of each stage of rotor and stator to obtain 10000 groups of coaxiality, amount of unbalance, rigidity and vibration amplitude parameters of multiple stages of rotor/stator, and solving a probability density function according to a drawn distribution function to obtain a probability relationship between the contact surface runout of the rotor/stator of an aircraft engine and a final coaxiality, amount of unbalance, rigidity and vibration amplitude of multiple stages of rotor/stator, thereby realizing distribution of tolerances of multiple stages of rotor/stator;
step 3:
establishing a BP neural network prediction model to accurately predict the coaxiality, amount of unbalance, rigidity and vibration amplitude after rotor and stator assembly, thereby realizing optimization of multi-stage rotor and stator assembly.

3 more elements

A device for realizing a deep learning regulation and control and assembly method for a large-scale high-speed rotary equipment based on dynamic vibration response properties, wherein the device comprises a base, an air flotation shaft system, a static balance measuring platform, an aligning and tilt regulating workbench, a left upright column, a right upright column, a left lower transverse measuring rod, a left lower telescopic inductive sensor, a left upper transverse measuring rod, a left upper telescopic inductive sensor, a right lower transverse measuring rod, a right lower lever type inductive sensor, a right upper transverse measuring rod, a right upper lever type inductive sensor, a door type cross beam, a longitudinal measuring rod and a middle telescopic inductive sensor;

wherein the air flotation shaft system is nested in the center position of the base;
wherein the static balance measuring table is arranged in the center position of the air flotation shaft system;
wherein the static balance measuring platform comprises a lower plate of the static balance measuring platform, an upper plate of the static balance measuring platform, two guide rods, four driving rods and three precise force sensors;
wherein the two guide rods are uniformly arranged on the lower plate of the static balance measuring platform at an equal interval;
wherein the four driving rods are uniformly arranged on the lower plate of the static balance measuring platform at equal intervals;
wherein the upper plate of the static balance measuring platform sleeves the two guide rods;
wherein the three precise force sensors are uniformly arranged on the upper plate of the static balance measuring platform at equal intervals;
wherein the aligning and tilt regulating workbench is arranged in the center position of the static balance measuring table;
wherein the left upright column and the right upright column are symmetrically distributed at two sides of the air flotation shaft system and are fixedly arranged on the base;
wherein the left upright column is sleeved with the left upper transverse measuring rod and the left lower transverse measuring rod sequentially from top to bottom in a mode of movable regulation;
wherein the left upper telescopic inductive sensor is fixedly connected to the left upper transverse measuring rod;
wherein the left lower telescopic inductive sensor is fixedly connected to the left lower transverse measuring rod;
wherein the right upright column is sleeved with the right upper transverse measuring rod and the right lower transverse measuring rod sequentially from top to bottom in a mode of movable regulation;
wherein the right upper lever type inductive sensor is fixedly connected to the right upper transverse measuring rod;
wherein the right lower lever type inductive sensor is fixedly connected to the right lower transverse measuring rod;
wherein the two ends of the door type cross beam are fixedly connected to the upper end of the left upright column and the upper end of the right upright column;
wherein the door type cross beam is sleeved with the longitudinal measuring rod in a mode of movable regulation;
and
wherein the middle telescopic inductive sensor is fixedly connected to the longitudinal measuring rod.

16 more elements

Dependencies are inferred from the claim text.

Deep learning regulation and control and assembly method and device for large-scale high-speed rotary equipment based on dynamic vibration response properties

Life of this patent

Deep learning regulation and control and assembly method and device for large-scale high-speed rotary equipment based on dynamic vibration response properties

Life of this patent

Abstract

Claims5