Page 70 - Mechanics of Microelectromechanical Systems
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1. Stiffness basics 57
Since the system of Fig. 1.31 is three-times indeterminate, the reactions
and need to be first determined, by using the corresponding
boundary conditions:
which can be expressed as:
The bending moment is:
The unknown reactions are:
The horizontal displacement at point 2 can now be found by means of Eqs.
(1.219), (1.221), (1.222) and (1.223), which give the stiffness about the x-
direction as:
