Damage Localization of Cantilever Beam Based on Normalized Natural Frequency Zones and Vibration Nodes
Siva Sankara Babu Chinka1, Balakrishna Adavi2, Srinivasa Rao Putti3
1Siva Sankara Babu Chinka, Department of Mechanical Engineering, Lakireddy Balireddy College of Engineering, Mylavaram (A.P), India.
2Balakrishna Adavi, Department of Mechanical Engineering, SRKR College of Engineering, Bhimavaram (A.P), India.
3Srinivasa Rao Putti, Department of Mechanical Engineering, Andhra University College of Engineering A, Visakhapatnam (A.P), India.
Manuscript received on 07 March 2019 | Revised Manuscript received on 20 March 2019 | Manuscript published on 30 March 2019 | PP: 1167-1174 | Volume-8 Issue-5, March 2019 | Retrieval Number: E3288038519/19©BEIESP
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Abstract: The damage of the mechanical structure causes the change in its behavior and variation in their modal parameters such as mode shapes and natural frequencies. Early stage identification of damage is very necessary to avoid the catastrophic failures and increase the life of components of machinery. In this paper, a novel methodology was proposed to identify the damage location on the beam-like structure like cantilever (fixed-free) beam. In this proposed technique, two approaches have been followed to estimate the damage location on the beam-like structures. First approach is used to identify the damage location in terms of small zones with the help of normalized frequency information. Second approach is used to identify the exact damage location of the beam with help of vibration nodes. The performance of this proposed method has been verified for the finite element modal analysis (FEMA) results and experimental results.
Keyword: Damage Detection, Effect Of Damage, Labview, Natural Frequency, Modal Analysis.
Scope of the Article: Frequency Selective Surface