| 载重子午线轮胎噪声机理的室内试验研究 |
| Study on Noise Mechanism of Truck and Bus Radial Tire by Indoor Experiment |
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| DOI： |
| 中文关键词: 载重子午线轮胎 半消声室 近场噪声 远场噪声 近场声全息 声强 |
| 英文关键词: truck and bus radial tire semi-anechoic room nearfield noise farfield noise nearfield
acoustical holography sound intensity |
| 基金项目:国家白然科学基余资助项目（ 51275265，51175286） |
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| 中文摘要: |
| 在半消声室内用模拟路面纹理的静音转鼓进行载重子午线轮胎远场、近场和近场声全息噪声试验，并建立了详细的数据分析方案，包含总声压级、噪声频谱、1/3倍频程、1/12倍频程、噪声色差图和瀑布网。对混合型室内噪声的数据分析发现，载重子午线轮胎近场噪声具有指向性特征，接地后端和前端噪声较大，依次向接地侧面减弱，且接地后端大于接地前端。 |
| 英文摘要: |
| ln the semianechoic roomi the farfield noise， nearfiled noise and near-field acoustical holography experiments for truck and bus radial tire were conducted by using silence drum with simulated road pattern. A detailed experimental scheme was built， including total sound pressure， noise spectrum，l/3 0ctave bands， 1/12 0ctave bands， color-map and water-map. The analysis of the hybrid indoor noise showed that，the nearfield noise of truck and bus radial tire had directional feature，the noise in the front end and rear end of tire ground contact area was higher，and the noise in the rear end was higher than that in the front end. |
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