HARRIS’ SHOCK AND VIBRATION HANDBOOK pot

... frequencies f 1 and f 2 . They involve the periodic increase and decrease of amplitude at the beat frequency (f 1 − f 2 ). broadband random vibration Broadband random vibration is random vibration ... computer technologies, new methods of shock and vibration control, new instrumentation, and new materials and techniques used in controlling shock and vibration. Many ne...

Ngày tải lên: 29/06/2014, 09:21

... THE HANDBOOK 1. 21 8434_Harris_ 01_ b.qxd 09/20/20 01 11: 39 AM Page 1. 21 INTRODUCTION TO THE HANDBOOK 1. 11 8434_Harris_ 01_ b.qxd 09/20/20 01 11: 39 AM Page 1. 11 1 .13 8434_Harris_ 01_ b.qxd 09/20/20 01 11: 39 ... THE HANDBOOK 1. 27 8434_Harris_ 01_ b.qxd 09/20/20 01 11: 39 AM Page 1. 27 1. 14 CHAPTER ONE 8434_Harris_ 01_ b.qxd 09/20/20 01 11: 39 AM Page 1. 14 1....

Ngày tải lên: 11/08/2014, 07:23

... M 2 N 3 − M 3 N 2 = (11.7) (25 .1) − (−15.3)(7.1) = 4 02 4(1,000)(68 − 26 ) ᎏᎏ 4(500)(−10.5) 3.58 ᎏ 7 .22 4(500) ᎏ 8(1,000) 1 ᎏᎏ 1 − (3.58/7 .22 ) 2 h ᎏ l h ᎏ l 2g ᎏ ρ A 2 VIBRATION OF A RESILIENTLY ... amplitudes: x c0 = ΂΃ 2 − ΂ cos 2 φ+sin 2 φ ΃΂ ΃ 2 u 0 ΂΃ 4 − A ΂΃ 2 + ΂΃ 2 (3.58) β 0 = − ΄΂ cos 2 φ+sin 2 φ ΃΂ ΃ + ΂ 1 − ΃Έ Έ sin φ cos φ ΅΂ ΃ 2 u 0 /ρ y ΂΃ 4...

Ngày tải lên: 11/08/2014, 07:23

... J. of Vibration and Acoustics, 117(B):117–161, 1995. 5. Choi, Y. S., and S. T. Noah: “Forced Periodic Vibration of Unsymmetric Piecewise-Linear Systems,” J. of Sound and Vibration, 121 (3) :117–126, ... thrust bearing of a SELF-EXCITED VIBRATION 5. 13 FIGURE 5.7 Fluid bearing whip. 8 434 _Harris_05_b.qxd 09/20/2001 11:28 AM Page 5. 13 CHAPTER 6 DYNAMIC VIBRATION ABSORBERS AN...

Ngày tải lên: 11/08/2014, 07:23

... −ω 2 nπ ᎏ 2 nπx ᎏ l nπx ᎏ l nπx ᎏ l nπ ᎏ 2 2F ᎏ l 5πx ᎏ l 3πx ᎏ l πx ᎏ l 2F ᎏ l γS ᎏ g ∂ 2 y ᎏ ∂t 2 γS ᎏ g ∂ 4 y ᎏ ∂x 4 7 .44 CHAPTER SEVEN 843 4_Harris_07_b.qxd 09/20/2001 11: 24 AM Page 7 .44 brackets represents modes having concentric nodal circles. The values of κ and λ are determined ... York, 1 945 . 10. Timoshenko, S.: Phil. Mag. (ser. 6), 41 : 744 (1921); 43 :125 (1922). 11...

Ngày tải lên: 11/08/2014, 07:23

... measurement of shock and vibration. It deals with the measurement of parame- ters which characterize the total (broad-band) signal. Considerable reference is made to Chaps. 22 and 23, which give ... replace the rectifier. VIBRATION METERS Vibration meters are instruments which receive a signal from a vibration transducer and process it so as to give an indication of relevant v...

Ngày tải lên: 11/08/2014, 07:23

... vanes and blades in pumps and fans, number of motor poles, and number of stator slots and rotor bars. ● Vibratory forces such as misalignment, mass unbalance, and reciprocating masses. ● Vibration ... cable and wiring (including shielding and grounding), (6) selecting techniques for the field calibration of the overall measurement system, (7) collecting and logging the data...

Ngày tải lên: 11/08/2014, 07:23

... shock and vibration. ISO TC 1 08/ SC 2 (Measurement and Evaluation of Mechanical Vibration and Shock as Applied to Machines, Vehicles, and Structures) is involved with the vibration of ships, and ... Conf. of Stds. Labs. Symposium, 1 984 . 12. Bouche, R. R. “Calibration of Shock and Vibration Measuring Transducers,” Shock and Vibration Monograph SVM-11,The Shoc...

Ngày tải lên: 11/08/2014, 07:23

... Transactions, 91 (1):815 ( 198 2). 18. Vold, H., and T. Rocklin: Proc. Intern. Modal Analysis Conf., 198 2, p. 542. 19. Ibrahim, S. R., and E. C. Mikulcik: Shock and Vibration Bull., 47(4):183 ( 197 7). 20. ... 7700 29, 197 7. 14. Halvorsen,W. G., and D. L. Brown: Sound and Vibration, November 197 7, pp. 8–21. 15. Allemang, R. J., D. L. Brown, and W. Fladung: Proc. Intern....

Ngày tải lên: 11/08/2014, 07:23

... Harris and C. E. Crede (eds.), Shock and Vibration Handbook, ” 1st ed., vol. III, chap. 50, McGraw- Hill Book Company, Inc., New York, 1961. 7. Richart, F. E., Jr., J. R. Hall, Jr., and R. D. ... M.: Shock and Vibration Handbook, ” 3d ed., McGraw-Hill Book Company, Inc., New York, 1988. [See also 1st (1961) and 2d (1976) eds.] 21. Stevenson, J. D., W. J. Hall, et al.: “Stru...

Ngày tải lên: 11/08/2014, 07:23

... 21 Average values and tolerance limits for shock and vibration data 20 Other statistical analysis of shock and vibration data 22 Matrix methods of analysis for shock and vibration data 28, Part I 8434_Harris_27_b.qxd ... 22 Fourier and shock response spectral analysis of shock data 23 Modal analysis of structural systems from shock and vibration data 21 Multi...

Ngày tải lên: 11/08/2014, 07:23

... 30.24 ISOLATION OF RANDOM VIBRATION In random vibration, all frequencies exist concurrently, and the amplitude and phase relations are distributed in a random manner. A trace of random vibration is ... described as narrow-band random vibration or a random sine wave. The characteristics of random vibration are defined by a frequency spectrum of power spectral density (see Chaps. 1...

Ngày tải lên: 11/08/2014, 07:23

... for Improv- ing Vehical Noise and Vibration, ” SAE Paper 880073 International Congress and Exposi- tion, Detroit, Mich., Feb. 29, 1988. SHOCK AND VIBRATION ISOLATORS AND ISOLATION SYSTEMS 32.41 8434_Harris_32_b.qxd ... elastic and viscous. Rubber parts can there- fore function as shock and vibration isolators and/ or as dampers. Although the term rubber is used rather lo...

Ngày tải lên: 11/08/2014, 07:23

... systems operation analysis and testing, electromag- netic compatibility, high-reliability parts, cost control, manufacturing, and thermal analysis, as well as shock and vibration. METHODS OF CONSTRUCTION Equipment ... O., and R. I. Stephens: “Metal Fatigue in Engineering,” John Wiley & Sons, Inc., New York, 1980. 10. Gaberson, H. A., and R. H. Chalmers: Shock and Vibrat...

Ngày tải lên: 11/08/2014, 07:23