基于云化物元模型的供水管网抗震服务功能评价
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摘要
以震后供水管网的节点供水压力和流量作为供水管网抗震服务功能综合评价的指标体系,针对供水管网抗震服务功能评价中存在不确定性的特点,全面考虑节点压力和流量抗震服务功能分级边界信息的随机性和模糊性,结合云模型的不确定推理特性和可拓学的物元理论兼具定性、定量分析的优点,提出了基于云化物元耦合模型的供水管网抗震服务功能评价方法.该方法通过云模型表达物元的事物特征值,建立标准云物元与计算特征云物元之间的关联函数,采用模糊等级特征值实现对供水管网抗震服务功能等级的判别.算例分析验证了该方法的优越性和有效性.
The comprehensive indicator system of seismic serviceability assessment of water supple network was established in terms of nodal pressure and flow of water supply network.According to many uncertain characteristics of influencing factors,Hence a new method for seismic serviceability assessment of water supple network was presented in this paper.The method has two advantages of considering two uncertain characteristic and realizing seismic serviceability assessment qualitatively and quantitatively based on cloud model and matter element theory.The method uses cloud model to express the things eigenvalue of matter element,calculates the correlation function of feature matter element models and standard ones,and identifies the seismic serviceability grades of water supple network.The application results indicate the method is effective and can reflect practical conditions of seismic serviceability assessment of water supple network.
引文
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