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针对大坝安全监控模型在建模时出现病态问题,以大坝安全监控统计模型、确定性模型和混合模型为例,从理论上分析了这三种模型在建模过程中发生病态的成因,提出了判断模型病态的依据,研究表明:当安全监控模型中影响量所构成的因子少于7个时,模型不易产生病态,并且在满足工程精度条件下,所建立的模型能保持较高的精度.为了解决大坝安全监控确定性模型、混合模型中水压分量数学模型易出现拐点病态问题,探究了出现拐点病态的原因,提出了出现拐点病态的判据,给出了相应的处理方法.
Aiming at the ill-posed problems of dam safety monitoring model in modeling, taking dam safety monitoring statistical model, deterministic model and mixed model as an example, the causes of the morbidity of these three models in the modeling process are theoretically analyzed. The results show that when the safety monitoring model is composed of less than seven influencing factors, the model is not easy to produce pathological conditions, and the model can be maintained at a high level under the conditions of engineering accuracy Accuracy.In order to solve the deterministic model of dam safety monitoring, the mathematical model of hydraulic components in hybrid model is prone to inflection point ill-posed problems, explored the reasons for inflection point morbidity, put forward the criterion of inflection point morbidity and gave the corresponding treatment methods .