Strength and natural frequency analysis of Remotely Operated Vehicle (ROV) in air and water for deep sea exploration

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Ahmadi Jeyed gh.; GANDOMKAR M.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MARINE TECHNOLOGY Year:2020 | Volume:6 | Issue:4 (18) Page(s): 72-83

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Title

Strength and natural frequency analysis of Remotely Operated Vehicle (ROV) in air and water for deep sea exploration

Author(s)

Ahmadi Jeyed gh. | GANDOMKAR M. | Issue Writer Certificate

Keywords

ROV FrameQ1

Hydrostatic pressureQ1

natural frequencyQ1

Fluid AcousticQ1

Added MassQ2

Abstract

In This paper aims to design an underwater remotely operated vehicle (ROV) for deep sea search and inspection, using the ABAQUS software, stress and natural frequencies of ROV, onshore and underwater are extracted. High strength and low weight materials have been used to make the ROV float under different conditions. Using natural frequency analysis underwater, considering the acoustic properties of water fluid, the natural frequencies of ROV have been extracted. For this purpose, acoustic analysis has been used in ABAQUS software and the effects of Added Mass on different modes of vibration of the ROV have been investigated. the stress analysis results show the robustness of the underwater robot at critical boundary conditions due to hydrostatic forces and drag. natural frequency analysis with has shown that in higher frequency modes, the effect of the surrounding fluid is reduced the effect of Added Mass at high frequencies. For fluid analysis around the structure, the fluid dimensions are raised until the increase in dimensions no longer changes the structural frequencies. This is about 5 times the size of the device underwater. The study showed that due to the effects of water mass, the device's natural frequencies will decrease up to 40%.

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APA: Copy

Ahmadi Jeyed, gh., & GANDOMKAR, M.. (2020). Strength and natural frequency analysis of Remotely Operated Vehicle (ROV) in air and water for deep sea exploration. IRANIAN JOURNAL OF MARINE TECHNOLOGY, 6(4 (18) ), 72-83. SID. https://sid.ir/paper/251960/en

Vancouver: Copy

Ahmadi Jeyed gh., GANDOMKAR M.. Strength and natural frequency analysis of Remotely Operated Vehicle (ROV) in air and water for deep sea exploration. IRANIAN JOURNAL OF MARINE TECHNOLOGY[Internet]. 2020;6(4 (18) ):72-83. Available from: https://sid.ir/paper/251960/en

IEEE: Copy

gh. Ahmadi Jeyed, and M. GANDOMKAR, “Strength and natural frequency analysis of Remotely Operated Vehicle (ROV) in air and water for deep sea exploration,” IRANIAN JOURNAL OF MARINE TECHNOLOGY, vol. 6, no. 4 (18) , pp. 72–83, 2020, [Online]. Available: https://sid.ir/paper/251960/en

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