THE differential equations governing the behaviour of even the simplest type of oleopneumatic shock absorber have to be integrated by an approximate step‐by‐step method. Such methods have been given by several writers. The orifices enter into these equations in the form of a parameter. To determine the orifices a value of this parameter is guessed and the equations are solved by the empirical method. If the solution obtained is not satisfactory, further values are guessed until a suitable value is obtained.
Dirac, G.A. (1947), "The Explicit Determination of Orifice Parameters in Shock Absorbers: An Account, Received in October 1945, of a Tried Solution to this Undercarriage Problem", Aircraft Engineering and Aerospace Technology, Vol. 19 No. 8, pp. 258-262. https://doi.org/10.1108/eb031539
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