Mechanical Vibrations' Fundamentals
- Description
- Curriculum
- FAQ
- Reviews
This course of mechanical vibrations will cover the basic and fundamental nature and concepts on the vibration of mechanical systems including: review of systems for mechanical vibrations, existence of vibrations in daily life and industry, causes of vibrations in machines and equipment, why the control of vibration is necessary, catastrophe of harsh and abnormal vibrations, why vibration control is necessary, classification of vibratory systems, type of vibration excitation, free/natural vibrations, resonance, damped and undamped vibrations, free undamped vibrations, free damped vibrations, forced undamped vibrations, forced damped vibrations, vibration amplification and its control through damping, damped natural frequency, Newton’s method for equation of motion, energy method for equation of motion, frequency of excitation, torsional systems, modeling of vibratory systems, lumped parameter modeling, linear vibrations, systems’ response to free and harmonic excitation, single and multiple degree of freedom systems, rotatory machines vibrations, modeling of rotating unbalance, base-excitation, vibration transmissiblity and isolation, vibration displacement, velocity and acceleration, fundamental frequency, natural frequencies and mode shapes, time and frequency response, simulations of systems response to interpret systems’ behavior at frequency ratios below less than 1, equal to 1 and above 1. Critical frequencies for machine’s operation, how to avoid critical frequencies during machines design and functioning.
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1Why vibration is studied, where vibration exist, what is mechanical vibrationsVideo lesson
Learn and identify about vibrations. Be able to know where the mechanical vibrations exist and why, what is the cause of vibrations in machines and equipment?
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2Vibration's basics, Causes of vibrations, Vibrations' classificationVideo lesson
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3Degree of freedom (DOF) of a vibration-system, SDOF, 2-DOF, multi-DOF systemsVideo lesson
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4Undamped natural frequency, equation of motion of SDOF, Newton's & Energy methodVideo lesson
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5Modeling of simple pendulum under free/natural vibration, solution linearizationVideo lesson
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6Equation of motion of SDOF undamped system under free vibration(harmonic motion)Video lesson
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7Rayleigh's method: to determine natural frequency of SDOF undamped systemVideo lesson
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10SDOF forced vibrations, damped systemVideo lesson
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11Response of SDOF damped system under forced vibrations (harmonic excitation)Video lesson
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12Base excitation (displacement transmissibility) of SDOF damped systemVideo lesson
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13Base excitation (force transmissibility) of SDOF damped systemVideo lesson
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14Rotating unbalanceVideo lesson
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15Vibration isolation (force transmitted to the base)Video lesson
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16Vibration isolation (simulation for amplification and isolation regions)Video lesson
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