The Experts below are selected from a list of 90 Experts worldwide ranked by ideXlab platform

Rudesh Ramesh More - One of the best experts on this subject based on the ideXlab platform.

  • Some Investigations on Effect of Notch on Dynamics Characteristics of Cantilever Beams
    March, 2020
    Co-Authors: S H Gawande, Rudesh Ramesh More
    Abstract:

    Beams are very important as per engineering applications is concern and it undergoes different type of loading. Because of different type of loadings there may be chance of failure of structures due to generation of notch.Therefore notch depth and its location are the main parameters for the vibration analysis of beams.The notch depth and its position may affect the Natural Frequency. Hence, it is essential to study the effect of notch depth and its position on Modal Natural Frequency of the beam for the good performance and its safety. This paper work focus on the examination of these changes, which are useful for identification of notch place.The material of the beam is seleced as mild steel. In this work the comprehensive analysis of cantilever beam with and without notch has been done using analytical analysis and finite element method (FEM) with the help of ANSYS and experimentally using modern National Instruments (NI) Lab-view technique. An experimental set up was developed in which a cantilever beam was excited by a hammer and the response was obtained using an accelerometer.This method describes the relation between the various dynamics characteristics as Modal Natural Frequency and notch depth, Modal Natural Frequency with notch location. This paper focus on the study of dynamic properties of cantilever beams subjected to free vibration under the influence of notch at different points along the length.

  • effect of notch depth location on Modal Natural Frequency of cantilever beams
    Structures, 2016
    Co-Authors: S H Gawande, Rudesh Ramesh More
    Abstract:

    Abstract The dynamic characteristics of a beam with breathing notch is studied in this paper. A systematic approach has been adopted in the present investigation to develop theoretical expressions for evaluation of Natural frequencies and mode shapes. A simple elastic cantilever beam with breathing notch located at different position is considered for the dynamic analysis. The notch depth and its location are the main parameters for the vibration analysis of beams. The notch depth and its position may affect the Natural Frequency. Hence, it is essential to study the effect of notch depth and its location on Modal Natural Frequency of the beam for the decent performance and its safety. This paper emphasis on the examination of these changes, which are useful for identification of notch location. The cantilever beam made of mild steel is selected for the study. In this work the comprehensive analysis of cantilever beam with & without notch has been done using analytical analysis and finite element method (FEM) and experimentally. An experimental set up was developed in which a cantilever beam with notch was excited by a hammer and the response was obtained using an accelerometer. The method presented describes the relation between the Modal Natural Frequency with notch depth and its location. This paper contains the study of dynamic properties of cantilever beams subjected to free vibration under the influence of notch at different points along the length.

  • Effect of Notch Depth & Location on Modal Natural Frequency of Cantilever Beams
    Structures, 2016
    Co-Authors: S H Gawande, Rudesh Ramesh More
    Abstract:

    Abstract The dynamic characteristics of a beam with breathing notch is studied in this paper. A systematic approach has been adopted in the present investigation to develop theoretical expressions for evaluation of Natural frequencies and mode shapes. A simple elastic cantilever beam with breathing notch located at different position is considered for the dynamic analysis. The notch depth and its location are the main parameters for the vibration analysis of beams. The notch depth and its position may affect the Natural Frequency. Hence, it is essential to study the effect of notch depth and its location on Modal Natural Frequency of the beam for the decent performance and its safety. This paper emphasis on the examination of these changes, which are useful for identification of notch location. The cantilever beam made of mild steel is selected for the study. In this work the comprehensive analysis of cantilever beam with & without notch has been done using analytical analysis and finite element method (FEM) and experimentally. An experimental set up was developed in which a cantilever beam with notch was excited by a hammer and the response was obtained using an accelerometer. The method presented describes the relation between the Modal Natural Frequency with notch depth and its location. This paper contains the study of dynamic properties of cantilever beams subjected to free vibration under the influence of notch at different points along the length.

  • INVESTIGATIONS OF INFLUENCE OF NOTCH OR CRACK ON CANTILEVER BEAMS
    2015
    Co-Authors: Rudesh Ramesh More, S H Gawande
    Abstract:

    It is required that any structure must be work properly during its service life time. But due to the internal damage of structures, there may be a chance of breakdown. During the last few decades vibration based fault detection methods are mostly used due to their simplicity for implementation. During operation, all structures are subjected to degenerative effects that may cause initiation of structural fault such as cracks or notch which lead to the disastrous failure  of the structure. It is seen that as crack or notch start generating, result in change in Natural frequencies. This research work focus on the examination of these changes, which is useful for identification of crack or notch position.The material of the beam is taken as aluminum and mild steel. In this work the detailed analysis of cantilever beam with & without notch has been done using finite element method (FEM) with the help of ANSYS and experimentally using modern National Instruments (NI) Lab-view software technique.An experimental set up was   developed in which a cracked cantilever beam is excited by a hammer and the response is obtained using an accelerometer.This method describes the relation between the Modal Natural Frequency and crack depth, Modal Natural Frequency with crack location.This method also provides the knowledge towards the detection, location and characterization of the damage in the structure. This paper includes the study of dynamic properties of cantilever beams subjected to free vibration under the influence of crack or notch at different positions along the length.

S H Gawande - One of the best experts on this subject based on the ideXlab platform.

  • Some Investigations on Effect of Notch on Dynamics Characteristics of Cantilever Beams
    March, 2020
    Co-Authors: S H Gawande, Rudesh Ramesh More
    Abstract:

    Beams are very important as per engineering applications is concern and it undergoes different type of loading. Because of different type of loadings there may be chance of failure of structures due to generation of notch.Therefore notch depth and its location are the main parameters for the vibration analysis of beams.The notch depth and its position may affect the Natural Frequency. Hence, it is essential to study the effect of notch depth and its position on Modal Natural Frequency of the beam for the good performance and its safety. This paper work focus on the examination of these changes, which are useful for identification of notch place.The material of the beam is seleced as mild steel. In this work the comprehensive analysis of cantilever beam with and without notch has been done using analytical analysis and finite element method (FEM) with the help of ANSYS and experimentally using modern National Instruments (NI) Lab-view technique. An experimental set up was developed in which a cantilever beam was excited by a hammer and the response was obtained using an accelerometer.This method describes the relation between the various dynamics characteristics as Modal Natural Frequency and notch depth, Modal Natural Frequency with notch location. This paper focus on the study of dynamic properties of cantilever beams subjected to free vibration under the influence of notch at different points along the length.

  • effect of notch depth location on Modal Natural Frequency of cantilever beams
    Structures, 2016
    Co-Authors: S H Gawande, Rudesh Ramesh More
    Abstract:

    Abstract The dynamic characteristics of a beam with breathing notch is studied in this paper. A systematic approach has been adopted in the present investigation to develop theoretical expressions for evaluation of Natural frequencies and mode shapes. A simple elastic cantilever beam with breathing notch located at different position is considered for the dynamic analysis. The notch depth and its location are the main parameters for the vibration analysis of beams. The notch depth and its position may affect the Natural Frequency. Hence, it is essential to study the effect of notch depth and its location on Modal Natural Frequency of the beam for the decent performance and its safety. This paper emphasis on the examination of these changes, which are useful for identification of notch location. The cantilever beam made of mild steel is selected for the study. In this work the comprehensive analysis of cantilever beam with & without notch has been done using analytical analysis and finite element method (FEM) and experimentally. An experimental set up was developed in which a cantilever beam with notch was excited by a hammer and the response was obtained using an accelerometer. The method presented describes the relation between the Modal Natural Frequency with notch depth and its location. This paper contains the study of dynamic properties of cantilever beams subjected to free vibration under the influence of notch at different points along the length.

  • Effect of Notch Depth & Location on Modal Natural Frequency of Cantilever Beams
    Structures, 2016
    Co-Authors: S H Gawande, Rudesh Ramesh More
    Abstract:

    Abstract The dynamic characteristics of a beam with breathing notch is studied in this paper. A systematic approach has been adopted in the present investigation to develop theoretical expressions for evaluation of Natural frequencies and mode shapes. A simple elastic cantilever beam with breathing notch located at different position is considered for the dynamic analysis. The notch depth and its location are the main parameters for the vibration analysis of beams. The notch depth and its position may affect the Natural Frequency. Hence, it is essential to study the effect of notch depth and its location on Modal Natural Frequency of the beam for the decent performance and its safety. This paper emphasis on the examination of these changes, which are useful for identification of notch location. The cantilever beam made of mild steel is selected for the study. In this work the comprehensive analysis of cantilever beam with & without notch has been done using analytical analysis and finite element method (FEM) and experimentally. An experimental set up was developed in which a cantilever beam with notch was excited by a hammer and the response was obtained using an accelerometer. The method presented describes the relation between the Modal Natural Frequency with notch depth and its location. This paper contains the study of dynamic properties of cantilever beams subjected to free vibration under the influence of notch at different points along the length.

  • INVESTIGATIONS OF INFLUENCE OF NOTCH OR CRACK ON CANTILEVER BEAMS
    2015
    Co-Authors: Rudesh Ramesh More, S H Gawande
    Abstract:

    It is required that any structure must be work properly during its service life time. But due to the internal damage of structures, there may be a chance of breakdown. During the last few decades vibration based fault detection methods are mostly used due to their simplicity for implementation. During operation, all structures are subjected to degenerative effects that may cause initiation of structural fault such as cracks or notch which lead to the disastrous failure  of the structure. It is seen that as crack or notch start generating, result in change in Natural frequencies. This research work focus on the examination of these changes, which is useful for identification of crack or notch position.The material of the beam is taken as aluminum and mild steel. In this work the detailed analysis of cantilever beam with & without notch has been done using finite element method (FEM) with the help of ANSYS and experimentally using modern National Instruments (NI) Lab-view software technique.An experimental set up was   developed in which a cracked cantilever beam is excited by a hammer and the response is obtained using an accelerometer.This method describes the relation between the Modal Natural Frequency and crack depth, Modal Natural Frequency with crack location.This method also provides the knowledge towards the detection, location and characterization of the damage in the structure. This paper includes the study of dynamic properties of cantilever beams subjected to free vibration under the influence of crack or notch at different positions along the length.

Kenny C. S Kwok - One of the best experts on this subject based on the ideXlab platform.

  • Interference effects on wind-induced coupled motion of a tall building
    Journal of Wind Engineering and Industrial Aerodynamics, 2020
    Co-Authors: Sukit Thepmongkorn, Graeme S. Wood, Kenny C. S Kwok
    Abstract:

    Interference effects from neighbouring buildings on wind-induced coupled translational-torsional motion of tall buildings have been investigated through a series of wind tunnel aeroelastic model tests. Interference effects on the CAARC standard tall building by an 8: 1:1 tall interfering building both upstream and downstream were investigated. The results indicated a significant increase in responses at the critical wind speed where the Frequency of the shed vortices originated from the interfering building coincides with the Modal Natural Frequency of vibration of the principal tall building. The along-wind, cross-wind, and twisting moment responses of the principal building were significantly increased when the interfering building was located diagonally upstream. A more substantial increase in responses was evident when the interfering building was located directly upstream from the principal building. (C) 2002 Elsevier Science Ltd. All rights reserved

  • Interference effects on wind-induced coupled motion of a tall building
    Journal of Wind Engineering and Industrial Aerodynamics, 2002
    Co-Authors: Sukit Thepmongkorn, Graeme S. Wood, Kenny C. S Kwok
    Abstract:

    Abstract Interference effects from neighbouring buildings on wind-induced coupled translational–torsional motion of tall buildings have been investigated through a series of wind tunnel aeroelastic model tests. Interference effects on the CAARC standard tall building by an 8:1:1 tall interfering building both upstream and downstream were investigated. The results indicated a significant increase in responses at the critical wind speed where the Frequency of the shed vortices originated from the interfering building coincides with the Modal Natural Frequency of vibration of the principal tall building. The along-wind, cross-wind, and twisting moment responses of the principal building were significantly increased when the interfering building was located diagonally upstream. A more substantial increase in responses was evident when the interfering building was located directly upstream from the principal building.

Sukit Thepmongkorn - One of the best experts on this subject based on the ideXlab platform.

  • Interference effects on wind-induced coupled motion of a tall building
    Journal of Wind Engineering and Industrial Aerodynamics, 2020
    Co-Authors: Sukit Thepmongkorn, Graeme S. Wood, Kenny C. S Kwok
    Abstract:

    Interference effects from neighbouring buildings on wind-induced coupled translational-torsional motion of tall buildings have been investigated through a series of wind tunnel aeroelastic model tests. Interference effects on the CAARC standard tall building by an 8: 1:1 tall interfering building both upstream and downstream were investigated. The results indicated a significant increase in responses at the critical wind speed where the Frequency of the shed vortices originated from the interfering building coincides with the Modal Natural Frequency of vibration of the principal tall building. The along-wind, cross-wind, and twisting moment responses of the principal building were significantly increased when the interfering building was located diagonally upstream. A more substantial increase in responses was evident when the interfering building was located directly upstream from the principal building. (C) 2002 Elsevier Science Ltd. All rights reserved

  • Interference effects on wind-induced coupled motion of a tall building
    Journal of Wind Engineering and Industrial Aerodynamics, 2002
    Co-Authors: Sukit Thepmongkorn, Graeme S. Wood, Kenny C. S Kwok
    Abstract:

    Abstract Interference effects from neighbouring buildings on wind-induced coupled translational–torsional motion of tall buildings have been investigated through a series of wind tunnel aeroelastic model tests. Interference effects on the CAARC standard tall building by an 8:1:1 tall interfering building both upstream and downstream were investigated. The results indicated a significant increase in responses at the critical wind speed where the Frequency of the shed vortices originated from the interfering building coincides with the Modal Natural Frequency of vibration of the principal tall building. The along-wind, cross-wind, and twisting moment responses of the principal building were significantly increased when the interfering building was located diagonally upstream. A more substantial increase in responses was evident when the interfering building was located directly upstream from the principal building.

M. Jabbari - One of the best experts on this subject based on the ideXlab platform.

  • Crack detection in beams using experimental Modal data and finite element model
    International Journal of Mechanical Sciences, 2005
    Co-Authors: H. Nahvi, M. Jabbari
    Abstract:

    In this paper, an analytical, as well as experimental approach to the crack detection in cantilever beams by vibration analysis is established. An experimental setup is designed in which a cracked cantilever beam is excited by a hammer and the response is obtained using an accelerometer attached to the beam. To avoid non-linearity, it is assumed that the crack is always open. To identify the crack, contours of the normalized Frequency in terms of the normalized crack depth and location are plotted. The intersection of contours with the constant Modal Natural Frequency planes is used to relate the crack location and depth. A minimization approach is employed for identifying the cracked element within the cantilever beam. The proposed method is based on measured frequencies and mode shapes of the beam.