Don ' t be wishy - washy . define explicit function arguments 不要不正式。定义显式的函数参数。
Then using the method of unit virtual - load , the displacement constraints are transformed into a explicit function to the design variables 然后利用单位虚载荷法将位移约束转化为设计变量与约束的显式关系。
In light of the measure way of fluid static pressure falling in proportion , the explicit function method of solving exponent by power function was simply and conveniently acquired through recording fluid flowing times 文章采用流体静压头下降成比例的测量方法,记录其流动时间,简便地解决了幂函数求解指数的显函数方法。
A new calculation method for optimizing diesel engine performance , called nonlinear regression - mess method , is put forward . in this paper , 25 groups of simulated values are calculated from the diesel engine working model , specific fuel consumption , peak pressure , rate of pressure rise , nox and peak temperature are fitted into explicit function about compression ratio and fuel injection advance angle 本文利用柴油机工作过程模型,得出25组模拟计算数据,利用非线性回归将油耗、最大爆发压力、压力升高率、 no _ x浓度及最高燃烧温度拟合成压缩比和喷油提前角的显函数,并用网格法进行优化,用c语言编制了优化计算程序,得出最佳的压缩比和喷油提前角,使其优化匹配。
According to the hourly water demand forecasting results of hangzhou city , the reasonability and effectiveness of this model was proved . real large water supply system is a complicatedly dynamic nonlinear system , it is influenced by many factors , and these factors are interactional . it is difficult to simulate water distribution networks by using one or several explicit functions 由于实际大型供水系统是非常复杂的动态非线性系统,在实际管网的运行中,受到多因素的制约和影响,各综合因素作用叠加起来造成水流状态极其复杂,使得很难以一个或几个统一的显式函数关系描述管网的工况。
While single component has explicit functions in runtime after strictly qualified , problems come out with composed components , which developed by different developers in different time . those problems are so called " feature interaction " . and those feature interactions , which influence the normal system operations and decrease the system efficiency , are called " feature interaction problem " , and should be checked out and be resolved 大多数构件经过了严格的质量认证,单独运行时功能十分明确,但当来自于不同开发者、不同开发时间的构件组装在一起时,就会发生很多问题,这些问题被称为“特征干扰” ,而其中那些影响系统正常运行或降低系统运行效率的特征干扰被称为“特征干扰问题” ,这些问题是必须被检测出来并予以解决的。
Secondly , according to the requirement of the parametric sensitivity analysis , the method based on orthogonal experiment is chosen to cope with the difficulty of obtaining the sensitivity analysis through the partial derivative of explicit function . and it also overcomes the traditional single factor cyclical method ' s shortcoming ? impossibility to analysis interactional factors . furthermore , some significative conclusions are acquired from the sensitivity analysis 其次根据轨迹优化问题灵敏度分析的需要,选取基于正交试验的灵敏度分析方法,解决了轨迹优化问题没有显函数,无法通过求其偏导数获得灵敏度的难点,同时克服了传统的单因素轮换法对该类问题进行灵敏度分析带来的弊端? ?无法对有相互作用的因素进行灵敏度分析,并通过对轨迹优化问题进行灵敏度分析,得出了一些有益的结论。