where (K_1, K_2, K_3) are constants derived from link lengths. A 4-bar link calculator automates this solution, handling the two possible assembly configurations (open vs. crossed). A comprehensive 4-bar link calculator typically offers:
Solving for (\theta_3) and (\theta_4) (the coupler and follower angles) requires solving a , often handled via the Freudenstein equation: 4 bar link calculator
Second derivatives provide angular accelerations, essential for force and inertia calculations. where (K_1, K_2, K_3) are constants derived from
Breaking into (x) and (y) components for a given crank angle (\theta_2): 4 bar link calculator