fuzzy membership function meaning in English
模糊元函数
Examples
- In order to solve the above - mentioned problems , this paper makes the comfortableness index objective function directly and by genetic algorithm , optimize automatically fuzzy membership function and control rules with environment change . by these means , fuzzy inverter air - conditioner will have a true intelligence character
本论文针对上述问题，直接以空调系统舒适性为多目标优化函数，利用遗传算法进化理论对模糊控制系统的隶属函数和控制规则进行协同自动寻优控制，达到基于遗传算法模糊协同智能控制的目的。 - The road tunnel ventilation system has strong non - linear characteristic and it is difficult to gain the precise mathematical model by using the traditional linear control theory , therefore , the modern control methods such as the fuzzy control become the trend for the road tunnel ventilation control . however , there are some difficulties with the establishment of the fuzzy membership functions and the rule base
公路隧道通风系统具有很强的非线形特征，传统的线性控制理论难以获得精确的数学模型，因此模糊控制等现代控制方法成为公路隧道通风控制的趋势，但模糊控制存在隶属函数、控制规则难以确定的问题。 - A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system . the method covers three steps . firstly , speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering . these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system . secondly , the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation . finally , parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome . these genes in searching space are optimized to get best solution by way of genetic algorithm . as shown by experimental results , the parameters designed by this method are capable of significantly improving performance indice of the system , which proves that it is a practical and effective method
提出一种基于遗传算法的直流双闭环调速系统参数优化设计方法.根据工程技术的要求，选用速度超调量和过渡时间作为参数优化性能指标.将该指标用模糊隶属度函数归一化，再加权平均形成系统优化模型的目标函数.采用计算机数值计算方法，通过仿真获得系统对应参数的动态响应曲线及其性能指标.最后以工程设计的参数为搜索范围，以速度调节器和电流调节器的参数为染色体中的基因，通过遗传算法在搜索范围中优化这些基因，获得优化解.实验结果表明，所设计的参数能使系统性能指标有显著提高 - Based on the principle of fuzzy analytic hierarchy process ( ahp ) , judging matrices were constructed for quantitative calculating the membership of each subjective annoyance expression grade , in view of different environmental function districts , then corresponding environmental fuzzy membership functions were given , and applied to calculate the noise threshold of subjective annoyance response
摘要根据模糊数学层次分析法( ahp )的原理，构造判断矩阵，针对不同的环境功能区域，定量计算各主观烦恼度表述等级的隶属度，求出了相应环境下的模糊隶属函数，并运用于噪声主观烦恼反应阈值的计算。 - In spite of different methods to a fuzzy optimal solution to the two classes of fuzzy linear programming , these methods have similar ideas : first is to fuzzify the objective function and constraints , i . e . , to display the definition of fuzzy membership function . second is to transfer the fuzzy linear programming into one general linear programming , based on the fuzzy decision , then we can obtain the fuzzy optimal solution by solving this linear programming
虽然求这两类模糊线性规划的模糊最优解的方法并不相同，但其思想具有相似性：首先是把目标函数或约束条件模糊化，给出他们的隶属函数的定义；然后给出模糊判决，在此基础上，规划最终都可化为求一个普通规划的解，这个解可看成模糊线性规划的模糊最优解。