ABSTRACT
Mathematical models may be used to develop an understanding of a system and to improve its performance. Models will aid in the selection of components and individual parts that provide desired system behavior. Establishing a mathematical model for a fluid power system is a flexible process. Several different models could be written for a particular system. The type of model used depends on the intended use of the machine and the nature of its parts. A machine may have certain critical performance requirements that influence the approach used in an analytical study. Every characteristic used to describe the machine mathematically will have variations in its numerical value. When machines are put to work they generally must cover variations in work loads and functions. Therefore, the mathematical model must be written to allow easy variation in characteristic values.
