Abstract
The aim of the paper is to study the effects of an accelerometer mass on natural frequency of a cantilever beam of AZ61 magnesium alloy. The fundamental natural frequency of the beam is determined experimentally using vibration analyzer OROS-34 for different location of accelerometer mass on the beam. Vibration in the beam is generated by a lightweight hand hammer. Analytical formulation is done to calculate modal properties of a mass loaded beam. Further, the problem is simulated using ANSYS and the simulated results are compared with the experimental and analytical results.
Highlights
The economical design of any structure leads to efficient use of its materials while high production of a component is possible due to high speeds of the machines
An experimental setup consists of a vibration analyzer (OROS-34), computer, a beam of AZ61 magnesium alloy, vice to fix one end of the beam and a hand hammer is used for investigation
Accelerometer is mounted at desired place on the beam and the response signal generated after its initial excitation with the help of the hand hammer is used as the input for the vibration analyzer
Summary
The economical design of any structure leads to efficient use of its materials while high production of a component is possible due to high speeds of the machines. The inclinations towards lightweight structures and highly efficient machines are responsible for creating resonant conditions during service of the structures and machines. There are many authors (Srinath and Das [1], Ozkaya [2], Low [3], Mermertas and Erol [4], Oz and Ozkaya [5], Kotambkar [6], Caker and Sanliturk [7], Sadri et al [8], Vladimir et al [9], Kras and Gardonio [10]) who have used various methods to study the behaviour of vibrating structures and machines. In most of the conditions, the mass of accelerometer is neglected but for vibration analysis of lightweight structures with accuracy, the accelerometer mass should be considered. The simulated results by ANSYS are compared satisfactorily with the analytical and experimental results
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