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Mechanical Vibrations (4th Edition)

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Unformatted text preview: 3 .. “W 26 ) 6 ktz— :2(;: (”454“m°54) = 0'255255xlo N*%V413 6 6 1‘83: «It! +K‘tg 3' 539072 x10 + 0-255;ng xwg :- 5-59§375 XIO N-M/racl Gd4 - F rhelicals rin :k= 0 p g ' 5411R3 (12 x 10°](24) 64 (10)(s3) Spring 1: k1 = = 1,388.891b/in 4 x 105x14) S rin 2:k =( =50.001b1n I p g 2 54 (10)(53) / (a) Spring 2 inside spring 1 (parallel): keq = k1 + k2. = 1,438.89 lb/in (b) Spring 2 on top of spring 1 (series): which gives keq = 48.2625 lb/in. ‘1 For Ou ’i'iElIILG/i. Spring) 44: : G A 54. n R3 (12x106)(1)9 1< =- _ . ' {400)(63) ~86-5‘05 'uJ/In 6 _ ‘1 1‘1 : (‘imo )( 5) = 3425 Lin/3... 6400M 53) (ab) SPr""3 ’2 inside Spring 1: «ea?- ‘kl‘l- kg: 83-93! 15/31 58m f :1:-r_,=,L-I_ () PraZon a? a} sprnf, “keg Kl+k1 or ”k ‘ k‘kz fl 86-80; 3-12?) ‘ Ia mm " AWN“! “/"L 36»8oé+ 3-125 M 12 ...
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