Crank-Rocker 4-Bar Mechanism
Grashof crank-rocker linkage (r₁=2, r₂=4, r₃=3.5, r₄=5 m) — satisfies the Grashof condition (s+l=7 ≤ p+q=7.5); the Freudenstein equation over a full 360° crank rotation gives its 69.8° rocker oscillation and both toggle positions.
Category: mechanism · Difficulty: Advanced
Solution
This is a kinematic mechanism — it has one or more degrees of freedom and no static support reactions.
All reaction values are computed by the StatIQ structural engine, not generated text. Signs follow the solver's convention: a positive Ry acts upward, a negative Ry downward; a positive M is counter-clockwise.