Free Vibration Analysis of an Un-cracked &amp; Cracked Fixed Beam

Quila, Malay; Mondal, Prof. Samar Ch.; Sarkar, Prof. Susenjit

doi:10.9790/1684-11337683

Cited by 14 publications

(6 citation statements)

References 16 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, crack modeling is crucial. Free vibration analysis has been carried out considering the nonlinearity of the material and geometry in the cracked beam model [4] A triangular crack of depth 30 mm and length 10 mm on the top face was constructed on ANSYS. Its distance from the fixed end was varied as 500 mm and 1000 mm to observe the change of crack position on amplitude of vibration.…”

Section: Crack Modellingmentioning

confidence: 99%

Harmonic analysis of cantilever beam with uniform cross section with a concentrated mass at its free end and with a uniformly distributed harmonic force.

Anuska Gautam,

Nabin Adhikari,

Mahesh Chandra Luitel

2023

Jnl Innov. Engin. Educ.

View full text Add to dashboard Cite

Cracks are one of the most catastrophic breakdowns that reduce useful life and contribute to the collapse of structural elements and structures. Today, component failure is the primary cause of structural element and structure failure. Depending on the depth and location of the crack, surface cracks on structural elements like beams result in significant differences in stiffness of the component. Certain vibrational characteristics can be used to identify beam fractures. The existence of fractures affects vibration factors including mode shapes and natural frequencies as well as the structural integrity. Modal analysis may be used to determine vibrational properties including modal frequencies and mode shapes for a structural component. In this work, harmonic analysis of a cantilever steel beam is conducted for various scenarios with cracks, no cracks at various locations using ANSYS software. Harmonic analysis is done within the study by taking a uniformly distributed force over the beam and the change in modal frequencies along with change in deformation pattern for different cases are visualized.

show abstract

Section: Crack Modellingmentioning

confidence: 99%

Harmonic analysis of cantilever beam with uniform cross section with a concentrated mass at its free end and with a uniformly distributed harmonic force.

Anuska Gautam,

Nabin Adhikari,

Mahesh Chandra Luitel

2023

Jnl Innov. Engin. Educ.

View full text Add to dashboard Cite

show abstract

“…A uniform Euler-Bernoulli beam has been used in this research. Quila et al (2014) studied that the presence of cracks causes changes in the physical properties of a structure which introduces flexibility, thus reducing the stiffness of the structure with an inherent reduction in modal natural frequencies. Kisa (2011) offered a novel technique for the vibration and stability analyses of axially loaded beams with multicracks.…”

Section: Literature Reviewmentioning

confidence: 99%

Vibration analysis and control of cracked beam using finite element method by using ANSYS

Toke

Patil

2022

WJE

View full text Add to dashboard Cite

Purpose The purpose of this paper is to develop an organized structure for damage detection of a cracked cantilever beam using finite element method and experimental method technique. Design/methodology/approach Due to presence of cracks the dynamic characteristics of structure change. The change in dynamic behavior has been used as one of the criteria of fault diagnosis for structures. Major characteristics of the structure which undergo change due to presence of crack are: natural frequencies, the amplitude responses due to vibration and the mode shapes. Therefore, an attempt has been made to formulate a smart technique for minimizing the amplitude of vibration for crack cantilever beam structures. In the analysis both single and double cracks are taken into account. Findings The results of the active vibration control experiments proved that piezoelectric sensor/actuator pair is an effective sensor and actuator configuration for active vibration control to reduce the amplitude of vibration for closed-loop system. Originality/value It is necessary that structures must safely work during its service life, but damages initiate a breakdown period on the structures which directly affect the industrial growth. It is a recognized fact that dynamic behavior of structures changes due to presence of crack. It has been observed that the presence of cracks in structures or in machine members leads to operational problem as well as premature failure.

show abstract

“…So, crack detection and localization in Aerospace is becoming a topic for constant research. Due to the above-mentioned reasons, the materials used in Aerospace applications need constant health monitoring [5,6]. There are different conventional structural health maintenance methods.…”

Section: Introductionmentioning

confidence: 99%

Damage detection in structural elements: using adaptive Mamdani model

et al. 2023

View full text Add to dashboard Cite

In real life all the structural and machine elements work under dynamic or variable loading. Application of dynamic loading leads to fluctuating stress. Due to fluctuating stress fatigue cracks initiates. These fatigue cracks are the main reason of failures. So, it is very important to detect the crack and predict the crack life. There are different types of damages but crack is one of the most encountered damage. There are different conventional methods to detect the damage but these methods are time taking and requires removal from the machines. Therefore, researchers are giving more importance to the unconventional methods to find the damage. In the present work a method has been introduced to find the damage site using Fuzzy Logic System and Regression Analysis. In particular, this paper focuses on applying statistical process control methods. A data pool has been created from the dynamic analysis of the cracked cantilever beam and then the data pool is trained in the proposed methodology to find the crack location. It has been noticed that the proposed methodology gives result within the tolerable range.

show abstract

Free Vibration Analysis of an Un-cracked & Cracked Fixed Beam

Cited by 14 publications

References 16 publications

Harmonic analysis of cantilever beam with uniform cross section with a concentrated mass at its free end and with a uniformly distributed harmonic force.

Harmonic analysis of cantilever beam with uniform cross section with a concentrated mass at its free end and with a uniformly distributed harmonic force.

Vibration analysis and control of cracked beam using finite element method by using ANSYS

Damage detection in structural elements: using adaptive Mamdani model

Contact Info

Product

Resources

About