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01-02ChapGere.0016 - A-PDF Split DEMO Purchase from...

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SECTION 1.7 Allowable Stresses and Allowable Loads 47 Solution 1.7-14 Piston and connecting rod P A B C M R L d diameter of rod AB F REE - BODY DIAGRAM OF PISTON The maximum allowable force P occurs when cos has its smallest value, which means that has its largest value. L ARGEST VALUE OF P R P C P applied force (constant) C compressive force in connecting rod R P resultant of reaction forces between cylinder and piston (no friction) F horiz 0 S d P C cos 0 P C cos M AXIMUM COMPRESSIVE FORCE C IN CONNECTING ROD C max c A c in which A c area of connecting rod M AXIMUM ALLOWABLE FORCE P s c A c cos P C max
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