本文選題：振動(dòng)系統(tǒng) + 頻率檢測(cè)��； 參考：《長(zhǎng)安大學(xué)》2015年碩士論文

【摘要】：攤鋪機(jī)熨平板振動(dòng)系統(tǒng)振動(dòng)頻率和攤鋪機(jī)攤鋪密實(shí)度有著很密切的聯(lián)系,針對(duì)很多類(lèi)型的攤鋪機(jī)不能實(shí)時(shí)反饋熨平板振動(dòng)系統(tǒng)振動(dòng)頻率,對(duì)攤鋪機(jī)熨平板振動(dòng)系統(tǒng)振動(dòng)頻率的控制是一開(kāi)環(huán)控制這一情況,為了進(jìn)一步提高攤鋪機(jī)攤鋪密實(shí)度,本文提出并且開(kāi)發(fā)出一個(gè)能實(shí)時(shí)檢測(cè)攤鋪機(jī)熨平板振動(dòng)系統(tǒng)振動(dòng)頻率的多頻測(cè)試系統(tǒng)。對(duì)攤鋪機(jī)熨平板振動(dòng)系統(tǒng)振動(dòng)頻率與攤鋪密實(shí)度之間的關(guān)系進(jìn)行了理論和實(shí)驗(yàn)研究,得到了攤鋪機(jī)熨平板振動(dòng)器振動(dòng)頻率、振搗裝置振搗頻率以及攤鋪速度與攤鋪密實(shí)度之間的關(guān)系曲線圖。測(cè)量頻率的方法很多,對(duì)比分析了檢測(cè)頻率的各種方法,提出了采用基于離散型傅里葉變換的軟件測(cè)頻法來(lái)實(shí)現(xiàn)對(duì)攤鋪機(jī)熨平板振動(dòng)系統(tǒng)振動(dòng)頻率的檢測(cè)。對(duì)多頻振動(dòng)測(cè)試系統(tǒng)的總體方案進(jìn)行了設(shè)計(jì),給出了多頻振動(dòng)測(cè)試系統(tǒng)的基本組成。對(duì)攤鋪機(jī)熨平板多頻振動(dòng)測(cè)試系統(tǒng)的硬件部分進(jìn)行了設(shè)計(jì),設(shè)計(jì)出了加速度信號(hào)和速度信號(hào)的調(diào)理電路原理圖以及測(cè)試系統(tǒng)的底板電路原理圖。對(duì)攤鋪機(jī)熨平板多頻振動(dòng)測(cè)試系統(tǒng)的軟件部分進(jìn)行了設(shè)計(jì),搭建了測(cè)試系統(tǒng)的軟件工作平臺(tái),設(shè)計(jì)了信號(hào)采集模塊驅(qū)動(dòng)程序以及應(yīng)用程序,提出了一種采用基于基二時(shí)分的傅里葉變換法來(lái)減少計(jì)算機(jī)運(yùn)算量的方法。對(duì)攤鋪機(jī)多頻振動(dòng)測(cè)試系統(tǒng)進(jìn)行了實(shí)物設(shè)計(jì),在實(shí)驗(yàn)室及施工現(xiàn)場(chǎng)進(jìn)行了相關(guān)的實(shí)驗(yàn)驗(yàn)證,實(shí)驗(yàn)結(jié)果表明,通過(guò)攤鋪機(jī)熨平板多頻振動(dòng)測(cè)試系統(tǒng)測(cè)出來(lái)的測(cè)量值是正確的,通過(guò)攤鋪機(jī)調(diào)節(jié)裝置調(diào)節(jié)出來(lái)的調(diào)節(jié)值存在一定的誤差,并不能代表攤鋪機(jī)熨平板振動(dòng)系統(tǒng)振動(dòng)頻率的實(shí)際值。
[Abstract]:The vibration frequency of paver ironing plate vibration system is closely related to the spreading density of paver. For many kinds of pavers, they can not feedback the vibration frequency of ironing plate vibration system in real time. The control of vibration frequency of paver ironing plate vibration system is an open-loop control. In order to further improve the spreading density of paver, This paper presents and develops a multi-frequency measuring system which can detect the vibration frequency of paver ironing plate vibration system in real time. The relationship between vibration frequency and spreading density of paver ironing plate vibration system is studied theoretically and experimentally, and the vibration frequency of paver ironing plate vibrator is obtained. The curve diagram of the relation between the frequency of vibrating and spreading speed and the degree of spreading density. There are many methods to measure the frequency. This paper compares and analyzes the various methods of detecting the frequency, and puts forward the software frequency measurement method based on discrete Fourier transform to detect the vibration frequency of the paver ironing plate vibration system. The overall scheme of the multi-frequency vibration testing system is designed, and the basic composition of the multi-frequency vibration testing system is given. The hardware part of the testing system for multi-frequency vibration of paver ironing plate is designed. The circuit schematic diagram of acceleration signal and velocity signal and the circuit diagram of bottom board of test system are designed. The software part of the testing system for multi-frequency vibration of paver ironing plate is designed. The software working platform of the testing system is built, and the driver program and application program of signal acquisition module are designed. In this paper, a method of reducing computer operation by Fourier transform based on basis 2 time division is proposed. The multi-frequency vibration testing system of paver is designed and verified in laboratory and construction site. The experimental results show that the measured value of multi-frequency vibration test system of paver ironing plate is correct. There is a certain error in the adjustment value by the paver regulating device, which can not represent the actual value of vibration frequency of the paver ironing plate vibration system.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：U415.521

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