非设计点 meaning in Chinese

off design point
off-design point

The software fluent was employed and the two - dimensional flow field and performance parameters of four hypersonic / inlet models at design and off - design condition are obtained
采用fluent软件对所设计的进气道设计点和非设计点二维流场和性能进行了数值模拟。
Firstly , the performance is calculated at the design point of the ws - 9 aeroengine by using the numerical model established . secondly , after obtaining the performance coupling parameters , the steady - state performance of the non - designed points is caculated . third , respectively make the limitation of rotate speed of the high pressure rotor and low pressure rotor equal to corresponding parameters of designed point , after the data calculated compared with those of designed point and actual testing of the manufactory , the error is obtained
首先，用所建立的发动机数学模型计算了发动机在设计点的各项性能，第二，根据发动机各部件的耦合特性参数计算得到发动机在非设计点状态下的各项稳态性能，第三，分别设定限制高压转子转速和低压转子转速逼近设计点条件下对应的参数，将计算得到的性能数据与设计点性能进行了比较，并将非设计点的计算结果与生产试车过程实测的性能数据进行对比，给出了该稳态模型计算结果与实际试车数据的误差。