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本方法取消了压气机试验特性整理计算中将试验折合转速圆整成整数折合转速时所作①效率不变;②流量与转速成正比;③理论压头与转速平方成正比的三个假定,而由电子计算机进行各试验点的特性计算,然后用光顺样条函数在测试误差范围内求出准确而光滑的若干条整数折合转速的效率和压比特性,并在压比特性图上自动计算出一族等效率线。文中给出计算示例。本方法只要再配上测试数据自动采集和计算机绘图,即可在试验现场瞬时绘出试验特性。
This method cancels the compressor efficiency test results when the test is equivalent to rounding the theoretical equivalent speed into an integral number of revolutions made ① constant efficiency; ② flow and speed is proportional to; ③ theoretical pressure head and the square of the speed proportional to the three assumptions, and Calculating the characteristics of each test point by the electronic computer, and then using the smooth spline function to find the accurate and smooth integer speed efficiency and pressure ratio characteristics in the test error range, and calculating automatically on the pressure ratio characteristic diagram A family of other efficiency lines. The article gives examples of calculations. As long as the method coupled with automatic test data acquisition and computer graphics, you can instantly plot the test site characteristics of the experiment.