Chebyshev orthogonal polynomial rotor sleeve tooth connecting piece uncertainty analysis method

Through the Chebishev orthogonal polynomial construction of the uncertainty analysis agent model of the modal frequency of the rotor sleeve connection structure, the problem that the existing technology cannot effectively quantify the range of the modal frequency is achieved, and more accurate and efficient analysis results are achieved.

CN119578029AActive Publication Date: 2025-03-07NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202411513515.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-03-07
Estimated Expiration
2044-10-28

AI Technical Summary

Technical Problem

The existing analytical methods cannot effectively quantify the modal frequency range of rotor sleeve connection structures caused by the uncertainty of centering surface gap, lateral load and tightening torque, making it difficult to accurately reflect the true dynamic characteristics of the system during design and optimization.

Method used

The uncertainty analysis agent model of the modal frequency of the rotor tooth connection structure is constructed using Chebishev orthogonal polynomial. By simplifying the mechanical model and determining the key uncertainty parameters, the impact of different parameters and their combinations on the modal characteristics is evaluated.

Benefits of technology

Accurate and rapid analysis of the modal frequency variation range of the rotor connection structure is achieved, and the scientificity and accuracy of design and performance evaluation is improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119578029A_ABST
    Figure CN119578029A_ABST
Patent Text Reader

Abstract

The invention discloses a Chebyshev orthogonal polynomial rotor sleeve tooth connecting piece uncertainty analysis method. The method comprises the following steps: establishing a sleeve tooth connecting structure simplified mechanical model; determining key uncertainty parameters according to a rotor sleeve tooth connection structure, wherein the key uncertainty parameters comprise a centering surface gap, a transverse load and a tightening torque; constructing an uncertainty analysis agent model of the modal frequency of the rotor connection structure by using a Chebyshev orthogonal polynomial; and based on the constructed uncertainty analysis agent model of the modal frequency of the rotor connection structure, evaluating the influence of different parameters and combinations thereof on the modal characteristics of the rotor sleeve tooth connection structure. The method is used for revealing the potential influence range of the uncertainty factors on the modal performance of the rotor, and provides systematic analysis processes and practical suggestions for design and optimization. Compared with a traditional method, the method has higher calculation efficiency and reliability when the problem of uncertainty of rotor sleeve tooth connection is solved, and the method is suitable for engineering design and decision support in related fields.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Optimizing method for processing signal errors of different array antennas

    CN106788799A

  • Method for analyzing uncertainty of dynamic characteristics of rotating cylindrical shell

    CN110442971A

  • Digital quantification method and device for steady-state response uncertainty of seawater pump rotor

    CN115455585A

  • Rotor critical rotation speed uncertainty analysis method based on Chebyshev interval and chaos polynomial expansion

    CN118839434A

  • Method and system for solving rigid body attitude based on functional iterative integration

    US20220282974A1