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Application of Elastomeric Coatings to Reduce Vibration in Propulsion Shaft System.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Application of Elastomeric Coatings to Reduce Vibration in Propulsion Shaft System./
作者:	Paudel, Aavash Chandra.
面頁冊數:	1 online resource (74 pages)
附註:	Source: Masters Abstracts International, Volume: 84-11.
Contained By:	Masters Abstracts International84-11.
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30489518click for full text (PQDT)
ISBN:	9798379531539

Application of Elastomeric Coatings to Reduce Vibration in Propulsion Shaft System.
Paudel, Aavash Chandra.

Application of Elastomeric Coatings to Reduce Vibration in Propulsion Shaft System. - 1 online resource (74 pages)

Source: Masters Abstracts International, Volume: 84-11.

Thesis (M.E.)--Lamar University - Beaumont, 2023.

Includes bibliographical references

For marine vessels, a propeller shaft system, also known as a propulsion shaft system, is an essential changer in engine torque and propeller thrust [1]. The propeller shaft system is subjected to transverse, longitudinal and torsional vibrations during operation. These sources of vibrations originate from alternating thrust generated by the Propeller, excitations in the form of rotational motion, and the whirling motion of the shafts [2]. The combination of these vibrations with each other in the propeller shaftscauses various types of coupled vibrations, which poses a serious threat to the safety and reliability of the vessels. In this thesis, the use of the elastomeric coating to reduce vibration amplitude in a propulsion shaft system is studied in detail. The theoretical dynamic model of the propulsion shaft system is developed through a sub structuring technique and using the commercial finite element analysis tool ANSYS. Using sinusoidal harmonic excitation, the structural model updating technique is implemented through the measured experimental data in a propulsion shaft system. The response surface optimization algorithm is used to obtain the unknown stiffness parameters of the bearings. Following the model validation, an in-depth experimental study is carried out in the aforementioned system using the ethylene propylene diene monomer rubber (EPDM) coating of varying thicknesses. The experimental results demonstrate that EPDM will significantly reduce the vibration amplitude in the lateral and longitudinal directions. In addition to reducing the vibration amplitude, the elastomeric coating will act as an additional mass in a system resulting in a slight increase in the natural frequencies of the entire assembly. Furthermore, the experimental results suggest that the elastomeric coating material will act as a damper in the low-frequency excitation while acting as an isolation system in the high-frequency range.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379531539Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Frequency response functionIndex Terms--Genre/Form:

542853
Electronic books.

Application of Elastomeric Coatings to Reduce Vibration in Propulsion Shaft System.
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245 1 0 $a Application of Elastomeric Coatings to Reduce Vibration in Propulsion Shaft System.
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500 $a Source: Masters Abstracts International, Volume: 84-11.
500 $a Advisor: Doranga, Sushil.
502 $a Thesis (M.E.)--Lamar University - Beaumont, 2023.
504 $a Includes bibliographical references
520 $a For marine vessels, a propeller shaft system, also known as a propulsion shaft system, is an essential changer in engine torque and propeller thrust [1]. The propeller shaft system is subjected to transverse, longitudinal and torsional vibrations during operation. These sources of vibrations originate from alternating thrust generated by the Propeller, excitations in the form of rotational motion, and the whirling motion of the shafts [2]. The combination of these vibrations with each other in the propeller shaftscauses various types of coupled vibrations, which poses a serious threat to the safety and reliability of the vessels. In this thesis, the use of the elastomeric coating to reduce vibration amplitude in a propulsion shaft system is studied in detail. The theoretical dynamic model of the propulsion shaft system is developed through a sub structuring technique and using the commercial finite element analysis tool ANSYS. Using sinusoidal harmonic excitation, the structural model updating technique is implemented through the measured experimental data in a propulsion shaft system. The response surface optimization algorithm is used to obtain the unknown stiffness parameters of the bearings. Following the model validation, an in-depth experimental study is carried out in the aforementioned system using the ethylene propylene diene monomer rubber (EPDM) coating of varying thicknesses. The experimental results demonstrate that EPDM will significantly reduce the vibration amplitude in the lateral and longitudinal directions. In addition to reducing the vibration amplitude, the elastomeric coating will act as an additional mass in a system resulting in a slight increase in the natural frequencies of the entire assembly. Furthermore, the experimental results suggest that the elastomeric coating material will act as a damper in the low-frequency excitation while acting as an isolation system in the high-frequency range.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 649730
650 4 $a Nuclear engineering. $3 595435
650 4 $a Physical oceanography. $3 3168433
653 $a Frequency response function
653 $a Marine shaft system
653 $a Elastomeric coatings
653 $a Response surface optimization
653 $a Propeller shaft system
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0548
690 $a 0552
690 $a 0415
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Lamar University - Beaumont. $b Mechanical Engineering. $3 3185933
773 0 $t Masters Abstracts International $g 84-11.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30489518 $z click for full text (PQDT)