
This lecture deals with Introduction to Virtual Labs
This lecture deals with Introduction to Machine Dynamics & Mechanical Vibrations Lab.
The purpose of the experiment is to determine the logarithmic decrement, damping ratio, damping frequency and natural frequency of a cantilever beam under free vibration.
The purpose of the experiment is to determine the logarithmic decrement, damping ratio, damping frequency and natural frequency of a simply supported beam under free vibration
The purpose of the experiment is to determine the logarithmic decrement, damping ratio, damping frequency and natural frequency of a fixed beam under free vibration.
To observe the effect of damping in Forced Vibration of Single Degree Of Freedom system using a Harmonic Force.
To observe the effect of damping in Forced Vibration of Single Degree Of Freedom due to Base Excitation.
To observe the effect of damping in forced vibration of single degree of freedom due to rotating of unbalanced force.
To understand the application of force excitation on the Two DOF spring mass system and observe its characteristics by varying its different parameters.
To understand the dynamic vibration absorber system as simplified single degree of freedom system and study its characteristics for different excitation frequency and amplitude and masses.
This course explains the use of Virtual Labs for Machine Dynamics and Mechanical Vibrations lab. It takes you through various simulation experiments of free and forced vibrations. In case of absence of a working Mechanical Vibrations laboratory, this type of simulation analysis helps in understanding how to study the experiments. All the experiments of this lab has been explained in detail so as to gain the understanding of various concepts and features of the virtual lab and for practice so that expertise can be gained in handling the online simulation lab.
We start with Introduction to Virtual Labs and Introduction to Machine Dynamics and Mechanical Vibrations(MDMV) Lab. We discuss the scope of Virtual Labs and what are the contents of the MDMV lab.
Second section deals with Free Vibration Experiments. Here the procedure for three experiments have been explained namely, Free Vibration of- Cantilever beam, Simply Supported beam and Fixed beam. The purpose of these experiment are to determine the logarithmic decrement, damping ratio, damping frequency and natural frequency of a cantilever beam under free vibration.
Third section is all about the Forced Vibration Experiments. Here the procedure for five experiments have been explained namely, Forced vibration of SDOF system, Base Excitation, Rotating Unbalance, 2DOF Forced vibration and Dynamic Vibration Absorber. Simulation and analysis of single degree of freedom system and two degree of freedom system has been explained. Also graph plotting of dynamic amplitude versus frequency ratio has been done.