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  • 1
    Online Resource
    Online Resource
    Prediction of the Flow-Induced Vibration Response of the Chenderoh Dam Left Bank Section
    EDP Sciences ; 2018
    In:  MATEC Web of Conferences Vol. 217 ( 2018), p. 01001-
    Details
    In: MATEC Web of Conferences, EDP Sciences, Vol. 217 ( 2018), p. 01001-
    Abstract: Flow-induced vibration is a common phenomenon that happened in any of dam structures during the operational condition. This includes the effect of water spilling from the upstream to the downstream of the dam due to high water volume at the upstream side. the release of water from the dam can be beneficial in generating the electricity source to the surrounding areas. However, in some cases, the spill of water can induced the significant vibration effects to the dam structure. In this study, the prediction of the flow-induced vibration response at the left bank section of the real scale Malaysian Chenderoh Dam model is simulated using the ANSYS software. the input force disturbances from the flow of the water at the left bank section during the normal water spilling condition is investigated. the results of frequency domain response and operational defection shapes (ODS) from the effect of flow-induced vibration are compared with the natural frequencies and mode shapes of the dam. From the results, the transient vibration responses due to the flow of water happened at the frequency of 13.3 Hz while the natural frequency of the left bank section occurred at 52.3 Hz, which indicates that there is no resonance phenomenon for the normal case of water spilling at the left bank section of the dam structure. This result is useful for the dam operation section in order to avoid any disaster of the dam structure.
    Type of Medium: Online Resource
    ISSN: 2261-236X
    URL: Article
    DOI: 10.1051/matecconf/201821701001
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2018
    detail.hit.zdb_id: 2673602-0
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  • 2
    Online Resource
    Online Resource
    Structural Dynamic Analysis of the Chenderoh Dam Sector Gate Section
    EDP Sciences ; 2018
    In:  MATEC Web of Conferences Vol. 217 ( 2018), p. 02002-
    Details
    In: MATEC Web of Conferences, EDP Sciences, Vol. 217 ( 2018), p. 02002-
    Abstract: The dynamic characteristics such as natural frequencies, mode shapes and frequency response function (FRF) are the important characteristics to be investigated to access the level of durability of any dam structures. These characteristics are important since it will be the reference information for any operational methods to be used for the dam structures. In this study, one of the real dam (i.e., Chenderoh Dam) that available in Malaysia is taken into consideration, where the dynamic analysis of the sector gate section of the dam structure is investigated. the real scale of the sector gate section is measured on site and modelled into the CAD software with the consideration of real build-in materials. Then, the finite element (FE) model is constructed in ANSYS software with the required boundary condition and meshing sensitivity analysis. From the result of modal analysis, 30 natural frequencies are determined in the range of 0.5904 Hz to 8.471 Hz together with the mode shapes but only the most significant natural frequencies will be shown in this paper. In addition, all three axes of the FRF graphs show an agreement for the highest natural frequency value at 7.95 Hz, where the maximum deflection occurred in x axis direction with 2.03 × 10 -7 m.
    Type of Medium: Online Resource
    ISSN: 2261-236X
    URL: Article
    DOI: 10.1051/matecconf/201821702002
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2018
    detail.hit.zdb_id: 2673602-0
    Location Call Number Limitation Availability
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Calculating the Moduli Elasticity For Reinforced Concrete Using New Rule of Mixtures Approach for the Dam Structure
    EDP Sciences ; 2018
    In:  MATEC Web of Conferences Vol. 217 ( 2018), p. 04003-
    Details
    In: MATEC Web of Conferences, EDP Sciences, Vol. 217 ( 2018), p. 04003-
    Abstract: Dam is the important structure use for water domestic store, electricity power supply, irrigation and flood control. Dam deal with reinforced concrete as a main material in construction. the material considerable safe when ability to support external and internal load. the capability of dam material due to safety is effect by degradation. Prevention monitoring must be conducted for high risk structure. Thus, moduli elastic is a mechanical property to measure stiffness and had relationship between stress and strain of material. While non-destructive and destructive testing in site inspection does not include reinforce and give incorrect moduli elasticity. New approach rule of mixture (Rom) with solid work software refer to United States Department of the Interior Bureau of Reclamation (USBR) standard design for small dam, give reliability monitoring with true sustain modulus elasticity of dam structure time by time. the concrete properties for sustain of moduli elasticity standard type gravity concrete dam value is 20.684 GPa. If the value decreases drastically from the standard, high precaution must be taken.
    Type of Medium: Online Resource
    ISSN: 2261-236X
    URL: Article
    DOI: 10.1051/matecconf/201821704003
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2018
    detail.hit.zdb_id: 2673602-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
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