Published online by Cambridge University Press: 28 July 2016
In systems for transmitting control motion there may be two shafts set in any relative position, each carrying a lever arm, and the ends of the lever arms may be connected by a link having ball ends. In general, the range of working movement for such a system is somewhat limited and the relationship between the angular movements of the two shafts is non-linear.
Although for some purposes it may suffice to mock-up the system and determine the motion experimentally, for other purposes analytical treatment may be required. The general solution given below is readily applied to particular cases, which may be simpler.
Note on page No 252 * Attention to the existence and character of the foregoing reaction couples is drawn by H. L F. Evernden in a paper contributed recently to the Institution of Mechanical Engineers (Automobile Division), entitled: “The Propeller Shaft or Hooke's Coupling and the Cardan Joint,” which deals with methods of minimising the vibration effects of these reaction couples in motor vehicles.