7_ch 17 Mechanical Design budynas_SM_ch17

7_ch 17 Mechanical Design budynas_SM_ch17 - F i 270.35...

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426 Solutions Manual • Instructor’s Solution Manual to Accompany Mechanical Engineering Design If you only change the belt width, the parameters in the following table change as shown. Ex. 17-1 This Problem b 6.00 4.13 w 0.393 0.271 F c 25.6 17.6 ( F 1 ) a 420 289 F 2 172.4 42 F i 270.6 147.7 f ± 0.33* 0.80** dip 0.139 0.176 *Friction underdeveloped **Friction fully developed 17-6 The transmitted power is the same. n -Fold b = 6in b = 12 in Change F c 25.65 51.3 2
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Unformatted text preview: F i 270.35 664.9 2.46 ( F 1 ) a 420 840 2 F 2 172.4 592.4 3.44 H a 20.62 20.62 1 n fs 1.1 1.1 1 f 0.139 0.125 0.90 dip 0.328 0.114 0.34 If we relax F i to develop full friction ( f = . 80) and obtain longer life, then n-Fold b = 6 in b = 12 in Change F c 25.6 51.3 2 F i 148.1 148.1 1 F 1 297.6 323.2 1.09 F 2 50 75.6 1.51 f 0.80 0.80 1 dip 0.255 0.503 2...
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This note was uploaded on 12/13/2011 for the course EML 3013 taught by Professor Shingley during the Fall '11 term at UNF.

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