60 likes | 233 Views
ME-309. S tatic F orce A nalysis. Example: The mechanism shown is drawn to scale 1cm : 0.2m Use graphical method to determine the torque needed for static equilibrium. 3. Carry out all your graphical solutions on the scaled drawing of the given mechanism. 2.
E N D
ME-309 Static Force Analysis
Example: The mechanism shown is drawn to scale 1cm : 0.2mUse graphical method to determine the torque needed for static equilibrium 3 Carry out all your graphical solutions on the scaled drawing of the given mechanism 2 We can consider the FBD of Links-3 4
Example:Use graphical method to determine the torque for static equilibrium Add P1 & P2 C.P. Force Polygon h
Consider a force scale as 1cm : 200N, then construct a parallelogram with this scale, and then measure R. R=4.4 cm 2.5 cm 4 cm R=4.4cm x 200N=880 N Back
Consider a force scale as 1cm : 300N, then construct the force polygon for the three forces acting on link-3 and having the concurrency point (C.P.), then measure . C.P. 2.93 cm 2.4 cm F43=2.4 cm x 300N=720 N Back