| 三聚氰胺多孔吸声材料属性对轮胎空腔共振噪声的影响 |
| Effect of Properties of Porous Sound-absorbing Melamine Material on Tire Cavity Resonance Noise |
| 投稿时间：2020-12-24 修订日期：2020-12-24 |
| DOI：10.12136/j.issn.1000-890X.2022.06.0422 |
| 中文关键词: 轮胎 三聚氰胺多孔吸声材料 材料属性 空腔共振噪声 声压级 声学仿真 |
| 英文关键词: tire porous sound-absorbing melamine material material property cavity resonance noise sound pressure level acoustic simulation |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 以275/70R22.5子午线轮胎为研究对象，建立轮胎声学仿真模型。基于LMS Virtual Lab软件的间接耦合声学有限元法，在轮胎空腔填充三聚氰胺多孔吸声材料（三聚氰胺材料），研究其属性对轮胎空腔共振噪声的影响。结果表明：三聚氰胺材料对轮胎空腔声压降低效果更明显；对于轮胎空腔降噪，三聚氰胺材料的厚度、密度和孔径存在最优值；轮胎空腔声压随着三聚氰胺材料孔隙率和流阻的增大而降低，但三聚氰胺材料流阻对轮胎空腔声压级的影响较小。 |
| 英文摘要: |
| Taking 275/70R22.5 radial tire as the research object，the tire acoustic simulation model was established.Based on the indirect coupled acoustic finite element method of LMS Virtual Lab software，the tire cavity was filled with porous sound-absorbing melamine material（melamine material），the influence of melamine material on the tire cavity resonance noise was studied.The results showed that melamine material had obvious effect on reducing the tire cavity sound pressure level.For tire cavity noise reduction，the thickness，density and pore size of melamine material had the optimal values.The tire cavity sound pressure level decreased with the increase of the porosity and flow resistance of melamine material，but the effect of the flow resistance on tire cavity sound pressure level was less significant. |
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