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Machine Dynamics and Vibrations Lab |
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| | Post date: 2021/02/8 | |
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Introduction to Machine Dynamics and Vibrations Laboratory
The Machine Dynamics and Vibrations laboratory is located inside the Auto-mechanic Workshop complex of the School of Mechanical Engineering. In this laboratory, students experimentally investigate the concepts taught in the courses Machine Dynamics and Vibrations, and examine the accuracy of existing theories via experiments. The vast majority of the equipment of this laboratory were made in England, certifying a high-level precision in test performance and measurements.
Lab Instructions
Download the lab instructions in PDF from here [in Persian only].
Experiments Schedule During the Semester
Download the schedule in PDF from here [in Persian only].
Investigated Experiments
Here is the list of experiments investigated in the Machine Dynamics and Vibrations lab:
Experiment name: Balancing
Equipment made in: TecQuipment, England
Experiment aim: Investigation of static and dynamic balance of rotating shafts.
Equipment status: Active |
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Experiment name: Pendulum
Equipment made in: TecQuipment, England
Experiment aim: Determination of the moment of inertia for a rotor, a gyroscope and a weight by means of free vibration of a two-string Pendulum.
Equipment status: Active |
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Experiment name: Torsional vibration (with and without viscous damper)
Equipment made in: TecQuipment, England
Experiment aim: Analysis of theoretical relations governing torsional vibrations with two degree-of-freedom, and comparing natural frequencies yielded by theory and experiment. In another experiment, the aim is to investigate torsional vibrations with viscous damping, and to obtain the oil viscosity.
Equipment status: Active |
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Experiment name: Free and forced vibrations
Equipment made in: TecQuipment, England
Experiment aim: In a free vibrating system, the system frequency equals the natural frequency. However, in a forced vibrating system subjected to an external periodic load, the system frequency equals the frequency of the external load. This experiment is meant to scrutinize the free and forced vibrations with and without the use of a damper.
Equipment status: Active |
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Experiment name: Gear mechanism
Equipment made in: TecQuipment, England
Experiment aim: Analysis of efficiency, angular acceleration and equivalent moment of inertia for a gear mechanism (including 4 gears and 3 pinions).
Equipment status: Active |
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Experiment name: Planetary gear
Equipment made in: TecQuipment, England
Experiment aim: Introduction to planetary gears and the calculation of efficiency in different gear ratios and obtaining the counteracting torque of the system.
Equipment status: Active |
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Experiment name: Vibrations of rotating beams (shafts) and the critical rotational velocity of shafts
Equipment made in: TecQuipment, England
Experiment aim: Experimental study over transverse vibrations of beams and characterisation of the resonance phenomenon in rotating beams (measurement of the critical velocity).
Equipment status: Active |
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Experiment name: Geneva mechanism
Equipment made in: TecQuipment, England
Experiment aim: Determination of the output properties (angle, velocity and acceleration) and designing a Geneva mechanism.
Equipment status: Active |
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Experiment name: Centrifugal force
Equipment made in: TecQuipment, England
Experiment aim: Investigation of the centrifugal force exerted to a weight rotating with the angular velocity ω.
Equipment status: Active |
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Experiment name: Gyroscope
Equipment made in: TecQuipment, England
Experiment aim: Exploration into the relation between the input torque and rotational velocities in a gyroscope.
Equipment status: Active
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Experiment name: Cam and follower
Equipment made in: TecQuipment, England
Experiment aim: Measurement of the vertical displacement of the follower and its relation with the amount of cam rotation in a cam-follower mechanism.
Equipment status: Active
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Contact Us
Address: Machine Dynamics and Vibrations Lab, Auto-mechanic Workshop, Iran University of Science and Technology, Resalat Sq., Tehran, Iran.
Lab director: Dr. Mohammad Javad Ashrafi Phone: +98 21 7322 89 60
Lab superintendent: M.Eng. Mohammad Mahmoudvand Phone: +98 21 7322 78 20
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