基于区间参数的水电机组振动传导研究
发布时间：2018-12-30 20:32
【摘要】：在建立的伞式混流式水轮发电机组振动完善模型的基础上,引入各参数的区间性,结合区间算法和随机摄动理论,推导了水电机组各传导路径的传导力及传导率的上、下限和均值的计算表达式,建立了具有区间参数的水电机组-厂房耦合系统的振动传导分析方法。通过算例,分析了结构参数不确定性对传导率的影响,验证了模型和方法的合理性与可行性。该方法能够反映参数不确定时振动传导路径传递率的范围及敏感性等问题,为全面分析水电机组振动传递特性提供理论基础和数据支撑。
[Abstract]:On the basis of the vibration perfect model of umbrella Francis turbine generator set, the interval property of each parameter is introduced, and the conduction force and conductivity of each conduction path of hydropower unit are deduced by combining interval algorithm and random perturbation theory. The expressions of the lower limit and the mean value are used to establish the vibration conduction analysis method for the hydro-generator powerhouse coupling system with interval parameters. The influence of structural parameter uncertainty on conductivity is analyzed by an example, and the rationality and feasibility of the model and method are verified. The method can reflect the range and sensitivity of the transmission rate of vibration conduction path in uncertain parameters, and provide theoretical basis and data support for the comprehensive analysis of vibration transfer characteristics of hydropower units.
【作者单位】： 小流域水利河南省高校工程技术研究中心;黄河水利职业技术学院;大连理工大学建设工程学部;
【基金】：国家自然科学基金资助(51379030) 河南省基础与前沿技术研究资助(162300410053)
【分类号】：TV734
，
本文编号：2396102
[Abstract]:On the basis of the vibration perfect model of umbrella Francis turbine generator set, the interval property of each parameter is introduced, and the conduction force and conductivity of each conduction path of hydropower unit are deduced by combining interval algorithm and random perturbation theory. The expressions of the lower limit and the mean value are used to establish the vibration conduction analysis method for the hydro-generator powerhouse coupling system with interval parameters. The influence of structural parameter uncertainty on conductivity is analyzed by an example, and the rationality and feasibility of the model and method are verified. The method can reflect the range and sensitivity of the transmission rate of vibration conduction path in uncertain parameters, and provide theoretical basis and data support for the comprehensive analysis of vibration transfer characteristics of hydropower units.
【作者单位】： 小流域水利河南省高校工程技术研究中心;黄河水利职业技术学院;大连理工大学建设工程学部;
【基金】：国家自然科学基金资助(51379030) 河南省基础与前沿技术研究资助(162300410053)
【分类号】：TV734
，
本文编号：2396102
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