| Free Propagation of Wave in Viscoelastic Cables with Small Curvature |
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| 作者姓名： | 邹宗兰 |
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| 作者单位： | Sichuan Vocational |
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| 摘 要： | IntroductionDynamicbehaviorsofcablesandcable structureshaveattractedtheattentionofmanyresearchers .Therehavebeenmanyreports1 5 ] ontheproblemsofnaturalfrequencies ,freevibrations,andstabilitybehaviorsofcablesandcablestructures .Manyavailabletechniques ,s…
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| 关 键 词： | 粘弹性电缆 自由传播 支配波 相速度 群速度 波衰减 |
Free Propagation of Wave in Viscoelastic Cables with Small Curvature |
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| Zou Zonglan.Free Propagation of Wave in Viscoelastic Cables with Small Curvature[J].Journal of Southwest Jiaotong University,2003,11(2):157-164. |
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| Authors: | Zou Zonglan |
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| Abstract: | The coupled longitudinal-transverse waves propagating freely along a viscoelastic cable was studied. The frequency-spectrum equation governing propagating waves and the formulations of the phase velocities and the group velocities characterizing propagating waves were derived. The effects of viscosity parameters on the phase velocities and the group velocities were investigated with numerical simulation. The analyses show that viscosity has a strong influence on the phase velocity and the group velocity of propagating waves and attenuation waves for longitudinal-dominant waves, but the phase velocities of propagating waves of transverse-dominant waves do not change with viscosity. |
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| Keywords: | viscoelastic cable small equilibrium curvature free propagation dominant waves |
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