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质量和阻尼比对串列双方柱中上游柱体振动特性的影响

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目录

致谢

INTRODUCTION

1.1 Background

1.2 Research status of the subject and analysis

1.2.1 Research on the single square cylinder

1.2.2 The vibration of the cylinder in tandem arrangement

1.3 Objectives and main contents

1.4 Thesis outline

NUMERICAL METHOD

2.1 Governing equations

2.2 Flow configuration and mesh distribution

2.3 Boundary condition

2.4 Study parameters

2.5 Mesh method

2.6 Numerical verification

2.6.1 Mesh independence

2.6.2 Meshing validation and results

2.7 Summary

SPACING RATIO AND REYNOLDS NUMBER

3.1 The wake cylinder in reattachment regime (Re = 100)

3.1.1 The responses of amplitude and frequency ratio (m*= 3, ζ= 0)

3.1.2 Time history (lift and displacement) and wake structure (m*= 3, ζ=0, L*= 2)

3.2 The wake cylinder in reattachment regime (Re = 200)

3.2.1 Transverse response and frequency ratio (m*= 3, ζ= 0, L*= 2)

3.2.2 Time history (lift and displacement) and wake structure (m*= 3, ζ=0, L*= 2)

3.3 The wake cylinder in co-shedding regime (Re = 100 and 200)

3.3.1 Transverse response and frequency ratio (m*= 3, ζ= 0, L*= 6)

3.3.2 Time history (lift and displacement) and wake structure (m*= 3, ζ=0, L*= 6)

3.4 Summary

MASS AND DAMPING RATIO

4.1 The effect of mass ratio

4.1.1 Vibration amplitude response

4.1.2 Vibration frequency response

4.2 The effect of damping ratio

4.2.1 Vibration amplitude and frequency responses

4.3 The effect of mass-damping ratio

4.3.1 Vibration amplitude and frequency responses

4.4 Summary

CONCLUSIONS

参考文献

声明

中 文 摘 要

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著录项

  • 作者

    闫柏璇;

  • 作者单位

    哈尔滨工业大学;

  • 授予单位 哈尔滨工业大学;
  • 学科 动力工程
  • 授予学位 硕士
  • 导师姓名 Alam Md. Mahbub;
  • 年度 2020
  • 页码
  • 总页数
  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 TU8TN7;
  • 关键词

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