Unformatted text preview: = 2 / max L f r = F v • f(x) steadily increases or decreases from / to 0 Chapter 4: General Equilibrium Problems • Typical problem: Find a force, point of application of a force, couple, etc. • Steps: – Draw free body diagram(s) • Isolate subject(s) • Include all forces/ couples – “loads” – often, known – “reactions” – forces that constrain • Include as much information as possible: lines of action, points of application, etc. – See pp. 160-162 for reactions of common connections • Use action/reaction principle when applicable – Solve equilibrium equations: – Sometimes this will be enough For future discussion: static indeterminacy = ∑ = F N i i F v , = + ⊗ = ∑ ∑ ∑ = = = + C F i C F N i i N i i PA N i i P C F r M v v v v...
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- Fall '05
- Equilibrium, Simple machine, single force resultant