38 محاضرة فيديو عن Mechanical Vibrations

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38 محاضرة فيديو عن
Mechanical Vibrations
وتتناول الموضوعات الأتية                                                                                                                                                                                                                                                                                                                                                    

SN	Modules	Lectures	Lecture Contents	Remarks
1	I. Introduction	i	Overview of the course, practical applications and   research trends	RT-01
2		ii	Harmonic and periodic motions, vibration   terminology	RT-02
3	II.          Single-DOF Free Vibrations	i	Vibration model, Equation of motion-Natural   Frequency	RT-03
4		ii	Energy method, Rayleigh method	RT-04
5		iii	Principle of virtual work, Damping   models.	RT-05
6	III.          Single-DOF Free   Vibrations	i	Viscously damped free vibration	RT-06
7		ii	Special cases: oscillatory, non-oscillatory and   critically damped motions.	RT-07
8		iii	Logarithmic decrement, Experimental determination   of damping coefficient.	RT-08
9	III.          Single-DOF Free   Vibrations	i	Forced harmonic vibration, Magnification   factor.	RT-09
10		ii	Rotor unbalance, Transmissibility	RT-10
11		iii	Vibration Isolation	RT-11
12		iv	Equivalent viscous damping, Sharpness of   resonance.	RT-12
13	IV.          Two-DOF Free Vibrations	i	Generalized and Principal coordinates, derivation   of equations of motion	SKD-01
14		ii	Lagrange’s equation	SKD-02
15		iii	Coordinate coupling	SKD-03
16		iv	Forced Harmonic vibration	SKD-04
17	V. Vibration Absorber	i	Tuned absorber, determination of mass   ratio.	SKD-05
18		ii	Tuned and damped absorber, unturned viscous   damper.	SKD-06
19	VI.          Multi-DOF	i	Derivation of equations of motion, influence   coefficient method	SKD-07
20		ii	Properties of vibrating systems: flexibility and   stiffness matrices, reciprocity theorem	SKD-08
21		iii	Modal analysis: undamped	SKD-09
22		iv	Modal analysis: damped	SKD-10

 
   RT: Rajiv Tiwari                                                       SKD:Santosh Kumar Dwivedy
 
   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

SN	Modules	Lectures	Lecture Contents	Remarks
23	VII.          Calculation of natural   frequencies	i	Rayleigh method	SKD-11
24		ii	Stodala method	SKD-12
25		iii	Matrix iteration method	SKD-13
26		iv	Holzer method and Dunkerley’s method	SKD-14
27	VIII.          Torsional vibration	i	Simple systems with one or two rotor masses	RT-13
28		ii	Multi-DOF systems-transfer matrix method	RT-14
29		iii	Geared system	RT-15
30		iv	Branched system	RT-16
31	IX.          Continuous systems : closed form   solutions	i	Vibration of strings	SKD-15
32		ii	Longitudinal and torsional vibration of rods	SKD-16
33		iii	Transverse vibration of beams: equations of motion and boundary   conditions	SKD-17
34		iv	Transverse vibration of beams: natural frequencies and mode   shapes	SKD-18
35	X.          Continuous systems : Approximate   solutions	i	Rayleigh’s energy method	SKD-19
36		ii	Rayleigh-Ritz method	SKD-20
37		iii	Assumed modes and Galerkin’s method	SKD-21
38	XI.          Finite element analysis	i	Finite element formulation for beams: Galerkin’s method	RT-17
39		ii	Beams elemental mass and stiffness matrices, Elemental force   vector,	RT-18
40		iii	Global finite element assembly and imposition of boundary   conditions and solution procedure.	RT-19
41		iv	Finite element formulation for rods.	RT-20
42	XI.          Signature analysis and preventive   maintenance	i	Vibration testing equipments: signal generation, measuring and   conditioning instruments	RT-21
43		ii	Vibration testing equipments: signal analysis instruments	RT-22
44		iii	Vibration signatures and standards	RT-23
45		iv	Field balancing of rotors	RT-24

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رابط 38 محاضرة فيديو عن Mechanical Vibrations

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