A Study on the Vibration Analysis of Marine Pump
- Abstract
- Contents
Contents i
List of Figures iv
List of Tables vi
Abstract vii
I. Introduction 1
1.1 Background 1
1.2 Overview 2
1.3 Objective of Study 3
1.4 Outline of Thesis 4
Ⅱ. Theory of Finite Element Modal Analysis 6
2.1 The Theory of Finite Element 6
2.1.1 The Basic Theory of Finite Element Analysis 6
2.1.2 Finite Element Method 7
2.2 Modal Analysis 10
2.2.1 The Basic Theory of Modal Analysis 10
2.2.2 The Concept of Modal Analysis 12
2.3 Design Simulation 14
2.3.1 Benefits of Design Simulation 18
2.4 Vibration 19
2.4.1 The Definition of Vibration 19
2.4.2 Causes of Vibration 20
2.4.3 Vibration Characteristics 21
2.4.4 Reasons for Marine Pump Vibration 22
III. The FE model of the pump 25
3.1 Measurement Method of the Pump 25
3.1.1 The Result of Actual Data 28
3.2 FE modal 29
3.3 The Main Dimension and Data of the Pump 31
3.3.1 The Frequencies of the Motor 31
3.3.2 The Gear Mesh Frequency of the Pump 32
Ⅳ. Free Vibration Analysis of Pump 33
4.1 The Significance of Free Vibration Analysis 33
4.2 The Natural Frequency 33
4.3 Vibration Mode of the Pump 39
4.4 Displacement Diagram of the Pump 40
4.5 Improvement 45
4.5.1 The Optimized Analysis Results 45
4.5.2 The Result after Improvement 47
V. Conclusions 49
국 문 요 약 50
References 51
Acknowledgements 53
- Issued Date
- 2015
- Awarded Date
- 2015. 8
- Type
- Dissertation
- Publisher
- 부경대학교 대학원
- Alternative Author(s)
- QI DALONG
- Affiliation
- 부경대학교
- Department
- 대학원 조선해양시스템공학과
- Advisor
- 배동명
- Table Of Contents
- With the continuous development of the international trade industry, the shipping industry has undergone rapid development in recent years. Marine pump is very important auxiliary machinery to operate the ship. So it was widely deployed on a ship and other marine fields. If the pump fails, it can cause a great impact on the ship.
However, marine pump can yield vibration and noise during operation. It is the cause of fatigue on the hull and provides uncomfortable circumstances for crews and passengers. In this study, I’ve focused on how to reduce noise and vibration of the marine pump.
For the design of marine pump, it is important to estimate and analyze the vibration of pump in the first place. If the vibration of pump is too strong, it can affect not only the safety of ship but also reduce the function of armaments of warship. Analysis of vibration characteristics is positively necessary in order to reduce the vibration and noise of marine pumps. The marine pump is taken as the research objective and the vibration characteristic analysis as well as vibration modal analysis is performed. The purpose of this paper is to present the results of a comparative study of various techniques for controlling vibration and noise of the marine pump.
People pay more attention to how to control vibration and noise, with the development of modern engineering techniques, thus contributing to the improvement of the modal analysis technique.
In this thesis, the marine fuel oil transfer pump is taken as the sample of research object. Firstly, the marine fuel oil transfer pump is modeled by using FEM. And then the vibration modal analysis is performed by FEM simulation, which can evaluate the vibration characteristics accurately. Secondly, by comparing the results of numerical simulation with the actual measurement, it proved that the simulation method is feasible.
- Degree
- Master
- Appears in Collections:
- 대학원 > 조선해양시스템공학과
- Files in This Item:
-
-
There are no files associated with this item.
-
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.