本文選題：重載鐵路 + 車輪廓形　； 參考：《西南交通大學(xué)》2017年碩士論文

【摘要】：眾所周知,鐵路運(yùn)輸相較于其他交通運(yùn)輸?shù)闹饕獌?yōu)點(diǎn)在于運(yùn)量大、速度快、單位運(yùn)量耗能少等方面。雖然鐵路運(yùn)輸耗能少是其自身存在的優(yōu)勢,但鐵路運(yùn)輸過程中依然消耗了很大一部分的能量,為了順應(yīng)國家發(fā)展的需要,響應(yīng)國家節(jié)約能源、減少排放的號召,研究鐵路運(yùn)輸中能耗的影響因素不可或缺。鐵路運(yùn)輸較其他運(yùn)輸方式最大的特點(diǎn)在于它的輪軌關(guān)系,因此從輪軌關(guān)系的方向去研究列車能耗的影響因素是非常具有現(xiàn)實(shí)意義的。首先,實(shí)地考察了朔黃線黃驊港車站區(qū)段的鐵路實(shí)際磨損情況,并測量了不同磨耗時期的LM型車輪踏面,結(jié)合線路上不同半徑曲線數(shù)量的統(tǒng)計(jì)圖,初步了解了朔黃線上的輪軌關(guān)系的主要參數(shù)。另外,通過閱讀文獻(xiàn)、查閱相關(guān)資料,得到了添加摩擦改進(jìn)劑后,輪軌關(guān)系變化的參數(shù)。在掌握這些原始數(shù)據(jù)的基礎(chǔ)上,進(jìn)一步完善了能耗計(jì)算理論模型,具體是從摩擦改進(jìn)劑模型的完善、摩擦功的計(jì)算方法、自旋蠕滑力矩的計(jì)算方法以及能耗計(jì)算模型的完善等方面展開分析的。最后利用動力學(xué)分析軟件和數(shù)值計(jì)算軟件進(jìn)行詳細(xì)的分析,探究不同磨耗時期的車輪廓形以及不同表面狀態(tài)的鋼軌對重載鐵路能耗的影響。論文的主要工作和結(jié)論如下:1.使用Simpack軟件仿真建立了 C80車輛的動力學(xué)模型后,查閱相關(guān)文獻(xiàn),確定了在實(shí)際工況中添加摩擦改進(jìn)劑不但會影響輪軌摩擦系數(shù),還會影響對應(yīng)的Kalker權(quán)重系數(shù)。依據(jù)這一事實(shí),為后續(xù)的動力學(xué)分析提供相關(guān)參數(shù)依據(jù),修正了原有的動力學(xué)、能耗分析方法,在此基礎(chǔ)編寫了相應(yīng)的數(shù)值計(jì)算程序。2.調(diào)查了朔黃線黃驊港車站區(qū)段輪軌關(guān)系,具體工作可以分為三個部分。第一,調(diào)查了朔黃線上鋼軌表面的磨損情況,對比實(shí)測的不平順頻譜圖,了解到線路上存在波長為80mm左右的波磨且鋼軌表面存在嚴(yán)重的磨損和損傷;第二,挑選不同磨耗里程的車輛測量他們的車輪踏面,得到了 0～30萬千米不同磨耗時期的車輪踏面廓形;第三,結(jié)合線路上不同半徑曲線數(shù)量統(tǒng)計(jì)表,確定了本文計(jì)算的各種工況曲線半徑。3.通過分析C80車輛模型在改變車輪踏面廓形和鋼軌表面狀態(tài)時的車輛動力學(xué)性能變化,得出添加摩擦改進(jìn)劑和不同磨耗時期的車輪踏面廓形對車輛動力學(xué)性能的影響。計(jì)算結(jié)果顯示:隨著車輪磨耗里程的增加,在兩種不同表面狀態(tài)的鋼軌上,最大輪軌橫向力、最大輪軌垂向力、最大輪重減載率、最大脫軌系數(shù)均呈現(xiàn)先增大再減小的趨勢。添加摩擦改進(jìn)劑后能夠改善最大垂向輪軌力、最大輪重減載率、車輛垂向平穩(wěn)性等動力學(xué)性能,整體上來看添加摩擦改進(jìn)劑不會影響車輛通過的安全可靠性。4.研究了不同磨耗的車輪廓型、通過速度、不同曲線半徑以及不同角度的軌底坡等參數(shù)對添加摩擦改進(jìn)劑后車輛通過時能耗節(jié)省量的影響,還據(jù)此分析了能耗經(jīng)濟(jì),分析結(jié)果表明:速度對能耗節(jié)省量的影響比較大,能耗節(jié)省量隨著通過速度的增大而增大;不同角度的軌底坡也對能耗節(jié)省量有較大影響,車輛通過時的的能耗節(jié)省量隨著軌底坡角度的增大而增大;磨耗經(jīng)濟(jì)性分析表明,當(dāng)摩擦改進(jìn)劑運(yùn)用在朔黃線上的小半徑曲線上時,每年節(jié)省電能約1.59×107kWh,節(jié)省的等效燃煤約7.95×106kg,減少的等效二氧化碳排放量約2.33×107kg。
[Abstract]:As we all know, the main advantage of railway transportation is that the main advantages of railway transportation are large volume, fast speed and less energy consumption per unit volume. Although the energy consumption of railway transportation is the advantage of its own existence, it still consumes a large part of the energy in the process of railway transportation. In order to comply with the needs of national development, it responds to the national economy. It is indispensable to study the influence factors of energy consumption in railway transportation. The largest characteristic of railway transportation is its wheel rail relationship than other transport modes. Therefore, it is of great practical significance to study the influence factors of train energy consumption from the direction of wheel rail relations. First, the Huanghua port station of the Shuo Huang line is inspected on the spot. The actual wear of the section of the railway, and the measurement of the LM wheel tread in different wear period, combined with the statistical graph of the number of different radius curves on the line, preliminarily understand the main parameters of the relationship between the wheel and rail of the Shuo Huang line. In addition, through reading the literature and referring to the relevant data, the parameters of the wheel rail relation are obtained after the friction modifier is added. On the basis of mastering these original data, the theoretical model of energy consumption calculation is further perfected. It is concretely analyzed from the perfection of the model of the friction modifier, the calculation method of the friction work, the calculation method of the spin creep moment and the consummation of the energy consumption calculation model. Finally, the dynamic analysis software and the numerical calculation are used. The main work and conclusion of the paper are as follows: 1. after the Simpack software simulation was used to establish the dynamic model of the C80 vehicle and the relevant articles were consulted, and the improvement of the friction improvement in the actual working conditions was determined. The agent not only affects the wheel rail friction coefficient, but also affects the corresponding Kalker weight coefficient. According to this fact, it provides the relevant parameter basis for the subsequent dynamic analysis, modifies the original dynamics and energy consumption analysis method. On this basis, the corresponding numerical calculation program,.2., has been compiled to investigate the wheel rail relationship of the Huanghua port section of the Shuo Huang line. The specific work can be divided into three parts. Firstly, the wear of the rail surface on the Shuo Huang line is investigated, and the measured irregularity spectrum is compared. It is found that there is a wave mill with a wavelength of about 80mm on the line and there is a serious wear and damage on the rail surface; and second, the vehicles with different mileage are selected to measure their wheel tread. The wheel tread profile of 0~30 thousand kilometers in different wear period; third, combined with the statistical table of different radius curves on the line, the radius.3. of various working conditions calculated in this paper is determined by analyzing the change of the dynamic performance of the car when the wheel tread profile and the rail surface state are changed by the C80 vehicle model, and the improvement of the friction is improved. The influence of the wheel tread profile on the vehicle dynamic performance during the different wear period shows that the maximum wheel rail lateral force, the maximum wheel rail vertical force, the maximum wheel load reduction rate and the maximum derailment coefficient increase first and then decrease with the increase of the mileage of the wheel wear, the maximum wheel rail vertical force and the maximum wheel load reduction rate. The friction modifier can improve the maximum vertical wheel rail force, the maximum wheel load reduction rate, the vehicle vertical stability and other dynamic properties. On the whole, adding friction modifier will not affect the safety reliability of the vehicle passing through.4. research on the wheel profile of different wear, through the speed, the different curve radius and the different angles of the rail bottom slope and other parameters. The energy consumption economy is analyzed by the influence of friction modifier on the energy consumption of vehicles passing through. The analysis results show that the influence of speed on energy saving is larger and the energy saving amount increases with the increase of speed. The energy saving amount increases with the increase of the angle of the rail bottom slope. The analysis of wear economy shows that when the friction modifier is used on the small radius curve of the Shuo Huang line, the energy saving is about 1.59 * 107kWh a year, the equivalent coal burning is about 7.95 * 106kg, and the equivalent carbon dioxide emission reduction is about 2.33 * 107kg.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U211.5;U268.6

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本文編號：2057196