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本文描述一种交互式的风机特性曲线生成程序，它是帝国学院开发的井下环境分析及管理系统（VentSIM）的组成部分。讨论了通风网路分析中的风机性状，并介绍了一种新的表达风机特性曲线的方法。在系统中应用新技术是为了避免由曲线拟合引起的问题，宁愿用线性方式描述风机特性曲线而不应用直角坐标多项式曲线拟合方法。风机特性用一些确定的离散线条和分布在高压带及低压带内的两个线条来描述。应用这种方法，消除了网路迭代时可能发生的误差。集成化的交互式风机特性曲线生成程序完全用鼠标驱动，能处理30台风机。
This article describes an interactive program for generating fan characteristic curves as part of the Underground Environment Analysis and Management System (VentSIM) developed by Imperial College. The fan characteristics in the ventilation network analysis are discussed, and a new method to express fan characteristic curve is introduced. The new technique is applied in the system to avoid the problems caused by the curve fitting. It is better to describe the fan characteristic curve in a linear manner rather than the Cartesian coordinate polynomial curve fitting method. The fan characteristics are described by a number of defined discrete lines and two lines distributed in the high-pressure zone and the low-pressure zone. Apply this method, eliminating the network iteration errors that may occur. Integrated interactive fan characteristic curve generator completely mouse-driven, can handle 30 turbines.