Practical machinery vibration analysis and predictive maintenance

... damping of structural vibrations Structural Vibration: Analysis and Damping benefits from my earlier book Structural Vibration Analysis: Modelling, Analysis and Damping of Vibrating Structures ... Structural vibration limits 5.3.1 Vibration intensity 5.3.2 Vibration velocity 5.4 Structural damage 5.5 Effects of damping on vibration response of structures...

Ngày tải lên: 28/05/2014, 20:06

... stimulation was performed daily In 342 Vibration Analysis and Control – New Trends and Developments particular, we used the 89 Hz-S from the previous experiment, and because no difference was found ... winds Red, blue, and green lines indicate oxyhemoglobin, deoxyhemoglobin, and total hemoglobin concentrations, respectively 344 Vibration Analysis and Control –...

Ngày tải lên: 19/06/2014, 19:20

... original system (dashed line); with TMD (solid line) Vibration Analysis and Control – New Trends and Developments -2 10 rAP (ω ) (m/N) -4 10 -6 10 50 10 0 15 0 200 250 300 350 400 ω ( 2π ) (Hz) Fig Effect ... Vibration Analysis and Control – New Trends and Developments Edited by Francisco Beltrán-Carbajal Published by InTech Janeza Trdine 9, 510 00 Rijeka,...

Ngày tải lên: 19/06/2014, 19:20

... k − m2 ω 2 − β6 m2 ω − β6 k2 μ − 2 6 k2 + β4 m2 + − m2 ω + β5 m2 ω − 2k2 ω − k2 ωμ B (ω ) = − β6 ω + β4 ω − 2 ω + β0 2 + − ω + β5 ω − β3 ω + β1 ω k2 Note that X1 ≡ exactly when ω = 2 = m2 , ... Science.,Vol .22 3.,No.7, pp 1555-1567 26 Vibration Analysis and Control – New Trends and Developments Brennan, M.J (1997) Vibration control using a tunable vibration neut...

Ngày tải lên: 19/06/2014, 19:20

... Englewood Cliffs, NJ 46 20 Vibration Analysis and Control – New Trends and Developments Vibration Control Korenev, B.G & Reznikov, L.M (19 93) Dynamic Vibration Absorbers: Theory and Technical Applications, ... the algebraic identifier 42 Vibration Analysis and Control – New Trends and Developments Vibration Control 16 for F0 , which is obtained by...

Ngày tải lên: 19/06/2014, 19:20

... 10.96 J θ (10-4Rad) (%) 1.56 8.77 3. 04 7.88 4. 61 8.17 5.87 8.57 6.90 9 .45 7 .46 12. 24 8.63 14. 13 9.63 12. 14 θ0 (10-4Rad) 4. 67 9. 14 14. 21 18.83 23.21 26.55 30 .45 32 .44 θ (10-4Rad) 4. 22 8.25 12.73 ... (cm) 1.18 2.28 3 .43 4. 30 4. 95 5. 64 6.58 7.10 y (cm) 0.99 1. 94 2.96 3.76 4. 39 4. 69 4. 89 5 .47 J (%) 15. 94 15.12 13.73 12.59 11. 34 16.76 25. 64 22.98 θ0 (10-4R...

Ngày tải lên: 19/06/2014, 19:20

... system (bump) 111 112 16 Uncontrolled Skyhook LQG Hinf 14 PSD of SM Acc ((m/s) /Hz) Vibration Analysis and Control – New Trends and Developments 12 10 0 .5 50 10 16 Uncontrolled SMC MSMC FMSMC ... Premaratne, K (2003b) Controlling floor vibration with active and passive devices, The Shock and Vibration Digest, Vol. 35, No .5, pp 347– 65, ISSN 058 3-1024 Hanagan, L.M (...

Ngày tải lên: 19/06/2014, 19:20

... (Spencer, et al., 1997; Ikhouane and Rodellar, 2007) 1 16 Vibration Analysis and Control – New Trends and Developments The objective of the work is to mitigate the vibration in semiactive suspension ... γ f ) (1) 122 Vibration Analysis and Control – New Trends and Developments where α2 and ω2 are the angular position and angular speed of the upper lev...

Ngày tải lên: 19/06/2014, 19:20

... Values 216 .75 [ kg] 28.85 [ kg] N 2 170 0 [ m ] N ·s ] 1200 [ m 184000 [ N ] m N 2 170 [ m ] 120 [ N ·s ] m 142 12 Vibration Analysis and Control – New Trends and Developments Vibration Control Fig ... 16 Control force using the observer (23) Actual value 15 148 18 Vibration Analysis and Control – New Trends and Developments Vibration Control Conclus...

Ngày tải lên: 19/06/2014, 19:20

... secant stiffness and energy loss per cycle The equivalent viscous damping expresses the 188 Vibration Analysis and Control – New Trends and Developments effectiveness of the material in vibration damping ... strain, which is material dependent, can be selected and 174 Vibration Analysis and Control – New Trends and Developments adopted in vibration con...

Ngày tải lên: 19/06/2014, 19:20

... Vakakis, 198 5; Vakakis, 198 5; Vakakis & Paipetis, 198 5; 198 6), although that generalization was still 198 Vibration Analysis and Control – New Trends and Developments limited to a very particular ... of SPIE 3038 ,268-76 196 Vibration Analysis and Control – New Trends and Developments Clark, P W; Aiken, I D; Kelly, J M; Higashino, M and Krumme, R C( 199 6...

Ngày tải lên: 19/06/2014, 19:20

... al., 2 010) propose an approach based 226 10 Vibration Analysis and Control – New Trends and Will-be-set-by-IN-TECH Developments on a multi-layer architecture In this method are three control ... = δωr and δq g = δω g Now, from the Newtons second law, the following relation holds ¨ Ir qr = Tr − Tsh (8) 222 Vibration Analysis and Control – New Trends and Wil...

Ngày tải lên: 19/06/2014, 19:20

... tests of new control strategies and on the evaluation of the adopted solutions compared to existing methods 262 Vibration Analysis and Control – New Trends and Developments References Anderson ... mention that 252 Vibration Analysis and Control – New Trends and Developments both displacement and acceleration can be obtained from the velocity sensor by...

Ngày tải lên: 19/06/2014, 19:20

... tolerant and flexible rules is a more realistic way to generate a diagnosis than the use of crisp and categorical relations 278 Vibration Analysis and Control – New Trends and Developments The analysis ... amplifier and TCP303 current probe, which 272 Vibration Analysis and Control – New Trends and Developments provides up to 15 MHz of frequency range,...

Ngày tải lên: 19/06/2014, 19:20

... Festigkeit” (On Elasticity and Fixity), Dominicus, Prague 308 Vibration Analysis and Control – New Trends and Developments Zhou, S.; Shi, J (2001) Active Balancing and Vibration Control of Rotating ... et al (2006; 2007); Bilik et al (2006); 310 Vibration Analysis and Control – New Trends and Developments Vibration Control Popprath et al (2006; 200...

Ngày tải lên: 19/06/2014, 19:20