What is the exciting frequency?
It is the frequency at which body is made vibrate in forced vibration. It is like complying the body to vibrate the freqency at which the force wants whether then its natural freqency. Importance of it resonace occurs when excitation frequency is equal to natural frequency .
What is excitation in vibration?
Base Excitation models the behavior of a vibration isolation system. The base of the spring is given a prescribed motion, causing the mass to vibrate. It is of particular interest to determine the influence of forcing amplitude and frequency on the motion of the mass.
What is excitation forces?
Harmonic excitation refers to a sinusoidal external force of a certain frequency applied to a system. Resonance occurs when the external excitation has the same frequency as the natural frequency of the system. It leads to large displacements and can cause a system to exceed its elastic range and fail structurally.
How do you calculate excitation frequency?
Harmonic Response Of Undamped System natural frequency= 2 rad/sec, excitation frequency=1 rad/sec. Many dynamic systems are subjected to harmonic (sinusoidal) excitation.
When the frequency of excitation coincide with the natural frequency?
If the frequency of excitation coincide with one of the natural frequencies of the system, a condition of resonance is encountered and dangerously large oscillations may result, which results in failure of major structures, i.e., bridges, buildings, or airplane wings etc.
What is vibration response?
Vibration Response: Calculating Vibration Response. February 02, 2015. Vibration is a unique concept in that it can be both a desirable and undesirable form of energy. It can be created by a simple motion and then move on its own until it returns to its natural, resting state.
What is forced frequency?
forcing frequency in British English noun. physics. the frequency of an oscillating force applied to a system. Compare natural frequency.
What does it mean excitation?
excitement
Definition of excitation : excitement especially : the disturbed or altered condition resulting from stimulation of an individual, organ, tissue, or cell.
What is response of undamped system?
Harmonic Response Of Undamped System natural frequency= 2 rad/sec, excitation frequency=1 rad/sec. Response Of Linear SDOF Systems To Harmonic Excitation. Many dynamic systems are subjected to harmonic (sinusoidal) excitation. Rotating machinery is an example.
When the frequency of excitation coincides with the natural frequency of the system the condition is known as answer?
When the exitation is oscillating the Page 4 Module 6 Vibration of Machine Parts Theory of machin(4th sem) 4 Prepared by Dr Niharika Mohanta Lecturer Mechanical Engg ,OSME Keonjhar system is forced to vibrate at the exitation frequency. If the frequency of excitation coincides with one of the natural frequency of the …
What is eigenvalue analysis?
Eigenvalue analysis provides dynamic properties of a structure by solving the characteristic equation composed of mass matrix and stiffness matrix. The dynamic properties include natural modes (or mode shapes), natural periods (or frequencies) and modal participation factors.