【摘要】：隨著中國的迅速發(fā)展,高等級高速公路在發(fā)展中占據(jù)越來越重的承載作用,根據(jù)國家公路相關規(guī)劃,預計到2030年公路交通運輸需求將會在現(xiàn)階段基礎上提高一倍。當瀝青路面工作一段時間后,由于自然環(huán)境與頻繁負載的原因會導致高等級高速公路出現(xiàn)坑槽、裂縫、龜裂、擁包與裂塊等不同形式的病害現(xiàn)象,這就導致了其需要合理的修復與養(yǎng)護服務,以保證其對運輸需求的承載工作。本文在研究瀝青路面微波熱再生技術的作用機理基礎上,通過設計合理的瀝青路面微波加熱裝置,從而對瀝青路面進行合理的修復與養(yǎng)護工作,用以延長瀝青路面的工作壽命。論文首先研究瀝青路面再生技術概況,然后研究微波熱再生機理,分析瀝青路面微波加熱的特點以及效率等關鍵問題,為提高瀝青微波加熱技術的加熱區(qū)均勻度與加熱區(qū)工作效率提供理論依據(jù);本文研究喇叭了輻射器,根據(jù)微波加熱原理設計合理參數(shù)并進行初步分析。論文對加熱裝置的工作原理、系統(tǒng)組成與優(yōu)化參數(shù)進行相關的研究,并在此基礎上進行了對應的實驗。從而得出了喇叭輻射器與加熱裝置的加熱區(qū)均勻度特性。為了進一步改善加熱均勻度,本文提出了徑向螺旋天線輻射器。詳細介紹了徑向螺旋行的設想、優(yōu)化方案與優(yōu)化參數(shù),研究分析了徑向螺旋天線輻射器的特點,從加熱區(qū)均勻度、加熱效率等角度對兩種輻射器進行了相關對比研究與實驗,獲得了比喇叭輻射器更好的均勻加熱區(qū)與更高的工作效率。本文為了對輻射器加熱區(qū)的均勻度與轉換效率問題進一步的優(yōu)化,提出采用電磁超材料結構提高有效熱轉換效率。論文對EBG結構的設計進行了詳細說明,給出了新型輻射器的模型結構,并研究分析了新型輻射器的工作特性。與前兩種輻射器相對比,得到了更好的加熱區(qū)均勻度與更高的能量轉換效率。本文優(yōu)化了喇叭天線設計、提出徑向螺旋天線輻射器,采用電磁超材料結構等方法有效提高了微波瀝青路面加熱的均勻度和效率。為了進一步縮短加熱時間,達到大規(guī)模工程使用化的目的,結合多種技術,需要進行下一步研究。
[Abstract]:With the rapid development of China, high-grade highways play a more and more important role in the development. According to the national highway related planning, it is expected that the demand for highway transportation will double on the basis of the present stage by 2030. When the asphalt pavement works for a period of time, due to the natural environment and frequent load, different forms of diseases, such as potholes, cracks, bags and cracks, will occur in the high-grade expressway. This led to the need for reasonable repair and maintenance services to ensure its transport needs to carry the work. Based on the study of the mechanism of microwave thermal regeneration technology of asphalt pavement, this paper designs a reasonable microwave heating device for asphalt pavement, so as to carry out reasonable repair and maintenance of asphalt pavement in order to prolong the working life of asphalt pavement. This paper first studies the general situation of asphalt pavement regeneration technology, then studies the mechanism of microwave thermal regeneration, analyzes the characteristics and efficiency of microwave heating of asphalt pavement, and so on. It provides a theoretical basis for improving the uniformity of heating zone and the working efficiency of heating zone of asphalt microwave heating technology. In this paper, the horn radiator is studied, and the reasonable parameters are designed according to the principle of microwave heating and the preliminary analysis is carried out. In this paper, the working principle, system composition and optimization parameters of the heating device are studied, and the corresponding experiments are carried out on this basis. Thus, the uniformity of heating zone between horn radiator and heating device is obtained. In order to improve the uniformity of heating, a radial spiral antenna radiator is proposed in this paper. This paper introduces in detail the assumption, optimization scheme and optimization parameters of the radial spiral antenna radiator, studies and analyzes the characteristics of the radial spiral antenna radiator, and makes a comparative study and experiment on the two kinds of radiator from the point of view of the uniformity of the heating zone and the heating efficiency. Better uniform heating zone and higher working efficiency are obtained than horn radiator. In order to further optimize the uniformity and conversion efficiency of the radiator heating zone, this paper presents an electromagnetic supermaterial structure to improve the effective heat conversion efficiency. In this paper, the design of the EBG structure is described in detail, the model structure of the new radiator is given, and the working characteristics of the new radiator are studied and analyzed. Compared with the former two radiators, better uniformity of heating zone and higher energy conversion efficiency are obtained. In this paper, the design of horn antenna is optimized, and the radial spiral antenna radiator is proposed. The uniformity and efficiency of microwave asphalt pavement heating are improved by using electromagnetic supermaterial structure and so on. In order to further shorten the heating time and achieve the purpose of large-scale engineering usage, combined with various technologies, the next step needs to be studied.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U415.52

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