tailieunhanh - Engineering Mechanics Statics - Examples Part 7

Tham khảo tài liệu 'engineering mechanics statics - examples part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Engineering Mechanics - Statics Chapter 5 MAx 1 Ibft MAy 1 Ibft MAz 1 Ibft Bz 1 lb fMax f 0 i f0 Ì MAy a X 0 lMAz l 0 X I Bz J f 0 Ì f 0 i a b X F 0 L -c L-mJ 0 f Ax J Ay Mm ma L M J Find Ax Ay Max MAy MAz Bz f Ax Axv L Ay 1 -20 40 lb Bz 30 it fMax f 110 MAy 40 lb-ft lMAz l 110 X Problem 5-87 The platform has mass M and center of mass located at G. If it is lifted using the three cables determine the force in each of these cables. Units Used Mg 103 kg kN 103 N g m s 422 2007 R. C. Hibbeler. Published by Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the publisher. Engineering Mechanics - Statics Chapter 5 Given M - 3 Mg a 4 m b 3 m c 3 m d 4 m e 2 m Solution The initial guesses are Fac 10 N Fbc 10 N FdE 10 N Given b FAC c FBc JT bb2 Jĩã 0 d e M ge FAC a F b2 Fbc a d e FES 0 a T7 Fbc b c M gb FDEb 0 Fac I Fac I Fbc V Fde J Find Fac FbC Fde Fbc zz V Fde J kN 423 2007 R. C. Hibbeler. Published by Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the .