基于抗滑降噪性能的瀝青路面表面構(gòu)造評(píng)價(jià)指標(biāo)
發(fā)布時(shí)間：2019-04-03 19:34
【摘要】：為了揭示瀝青混合料表面構(gòu)造對(duì)路面抗滑降噪性能的影響機(jī)理,運(yùn)用頻譜分析法計(jì)算得到各級(jí)倍頻程中心頻率對(duì)應(yīng)波長(zhǎng)處的瀝青混合料(HMA)表面構(gòu)造水平;通過(guò)室內(nèi)試驗(yàn)(二維表面構(gòu)造測(cè)試法(2D-ITAM),動(dòng)態(tài)旋轉(zhuǎn)摩擦系數(shù)測(cè)試儀法(DFT)及室內(nèi)輪胎加速下滾噪聲測(cè)試法),分析表面構(gòu)造水平及分布特性表征指標(biāo)和瀝青混合料表面摩擦系數(shù)及輪胎/路面噪聲水平之間的相關(guān)關(guān)系.結(jié)果表明:表面構(gòu)造特征波水平可以表征瀝青混合料表面宏觀構(gòu)造和短波段大構(gòu)造水平及分布特性;且與安裝有ABS防抱死系統(tǒng)車輛在瀝青混合料表面行駛時(shí)的抗滑性能之間有良好的相關(guān)性,與輪胎/路面噪聲水平之間具有一定的相關(guān)性.
[Abstract]:In order to reveal the mechanism of the influence of surface structure of asphalt mixture on the performance of anti-skid and noise reduction, the (HMA) surface structure level of asphalt mixture with the center frequency of octave course corresponding to the wavelength is calculated by means of spectrum analysis. Through indoor tests (two-dimensional surface construction test (2D-ITAM), dynamic rotating friction coefficient tester (DFT) and indoor tire acceleration roll-down noise test), The correlation between surface structure level and distribution characteristics, surface friction coefficient of asphalt mixture and noise level of tire / road surface is analyzed. The results show that the surface structural characteristic wave level can be used to characterize the surface macro-structure and short-band large structure level and distribution characteristics of asphalt mixture. There is a good correlation between the anti-skid performance of vehicles equipped with ABS anti-lock system on the surface of asphalt mixture and the noise level of tire / road surface.
【作者單位】： 西南交通大學(xué)土木學(xué)院;西南交通大學(xué)高速鐵路線路工程教育部重點(diǎn)實(shí)驗(yàn)室;長(zhǎng)安大學(xué)特殊地區(qū)公路工程教育部重點(diǎn)實(shí)驗(yàn)室;長(zhǎng)安大學(xué)公路學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51578076,5178467,51408287);國(guó)家自科學(xué)基金青年基金資助項(xiàng)目(2682016CX009) 中央高校基本科研業(yè)務(wù)費(fèi)科技創(chuàng)新資助項(xiàng)目(2682016CX009) 中央高�；究蒲袠I(yè)務(wù)專項(xiàng)費(fèi)“特殊地區(qū)公路工程教育部重點(diǎn)實(shí)驗(yàn)室”開放基金項(xiàng)目(310821171103)
【分類號(hào)】：U416.217
本文編號(hào)：2453498
[Abstract]:In order to reveal the mechanism of the influence of surface structure of asphalt mixture on the performance of anti-skid and noise reduction, the (HMA) surface structure level of asphalt mixture with the center frequency of octave course corresponding to the wavelength is calculated by means of spectrum analysis. Through indoor tests (two-dimensional surface construction test (2D-ITAM), dynamic rotating friction coefficient tester (DFT) and indoor tire acceleration roll-down noise test), The correlation between surface structure level and distribution characteristics, surface friction coefficient of asphalt mixture and noise level of tire / road surface is analyzed. The results show that the surface structural characteristic wave level can be used to characterize the surface macro-structure and short-band large structure level and distribution characteristics of asphalt mixture. There is a good correlation between the anti-skid performance of vehicles equipped with ABS anti-lock system on the surface of asphalt mixture and the noise level of tire / road surface.
【作者單位】： 西南交通大學(xué)土木學(xué)院;西南交通大學(xué)高速鐵路線路工程教育部重點(diǎn)實(shí)驗(yàn)室;長(zhǎng)安大學(xué)特殊地區(qū)公路工程教育部重點(diǎn)實(shí)驗(yàn)室;長(zhǎng)安大學(xué)公路學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51578076,5178467,51408287);國(guó)家自科學(xué)基金青年基金資助項(xiàng)目(2682016CX009) 中央高校基本科研業(yè)務(wù)費(fèi)科技創(chuàng)新資助項(xiàng)目(2682016CX009) 中央高�；究蒲袠I(yè)務(wù)專項(xiàng)費(fèi)“特殊地區(qū)公路工程教育部重點(diǎn)實(shí)驗(yàn)室”開放基金項(xiàng)目(310821171103)
【分類號(hào)】：U416.217
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