| Effect of Properties of Porous Sound-absorbing Melamine Material on Tire Cavity Resonance Noise |
| Received:December 24, 2020 Revised:December 24, 2020 |
| DOI：10.12136/j.issn.1000-890X.2022.06.0422 |
| Key Words: tire；porous sound-absorbing melamine material；material property；cavity resonance noise；sound pressure level；acoustic simulation |
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| Abstract: |
| 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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