柔性转子动平衡测试数据库系统开发与验证

为提高航空发动机柔性转子动平衡效率,建立动平衡数据库,用于整理、处理、归纳动平衡试验数据,为发动机的后期维护和新机研制提供技术依据.采用LabWindows/CVI软件开发平台,与MicrosoftAccess建立数据接口,设计开发了柔性转子动平衡数据库系统,对设计要求、数据来源、模块设计及其实验应用等进行了阐述,对历史数据进行管理、统计、比较以及趋势分析,为柔性转子动平衡提供数据支持.实验结果表明,试重相角、试重大小、支承方式以及转速等因素对影响系数的影响程度不同;动平衡数据库系统结构合理、运行可靠、操作方便,能够提高影响系数精度和动平衡的效率,具有一定的工程应用价值.

Development and Validation for Flexible Rotor Balancing Test Database System

A database system of flexible rotor balancing is developed to improve balancing efficiency for flexible rotors of aero engines,which using LabWindows/CVI as the software development platform and establishing a data interface with Microsoft Access to arrange,process and summarize balancing test data and provide technical basis to engine maintenance and development.The design requirements,data sources,module design and experimental applications are described.Management,statistics,comparison and trend analysis towards historical data can provide data support for flexible rotor balancing.The experimental results suggest that the factors including the phase and size of the trial mass,supporting pattern and rotational speed have different effects on influence coefficients.In addition,the balancing database system has reasonable structure,reliable running and convenient operation,which can improve the accuracy of influence coefficients and the efficiency of balancing,therefore it has practical significance of engineering application.