本文選題：鉆機(jī) + 電控系統(tǒng)��； 參考：《石家莊鐵道大學(xué)》2015年碩士論文

【摘要】：隨著國(guó)民經(jīng)濟(jì)高速發(fā)展,交通建設(shè)進(jìn)入了新的快速發(fā)展階段,其中公路和鐵路建設(shè)需要穿越大量隧道。在隧道施工中常會(huì)發(fā)生圍巖變形塌方、涌突水、瓦斯爆炸等嚴(yán)重地質(zhì)災(zāi)害,造成重大人員傷亡和財(cái)產(chǎn)損失。通常的解決辦法是采用鉆機(jī)超前鉆探,進(jìn)行地質(zhì)預(yù)報(bào)。電控系統(tǒng)是鉆機(jī)的重要組成部分,因此研究多功能鉆機(jī)電控系統(tǒng),對(duì)提高鉆機(jī)自動(dòng)化水平和保證施工安全具有重要意義。本文主要設(shè)計(jì)了多功能鉆機(jī)的油門控制電路、電源電路、啟動(dòng)電路、監(jiān)控電路、安全保護(hù)電路、液壓鎖電路、預(yù)熱電路、水泵控制電路及遙控電路,重點(diǎn)研究了油門控制電路。分析了多功能鉆機(jī)油門系統(tǒng)的組成結(jié)構(gòu)和工作原理,建立了控制系統(tǒng)數(shù)學(xué)模型,并進(jìn)行了仿真研究,結(jié)果表明:系統(tǒng)穩(wěn)定,但存在振蕩、超調(diào)和穩(wěn)態(tài)誤差,需進(jìn)行控制策略研究。首先采用經(jīng)典PID控制算法,經(jīng)PID參數(shù)整定后,消除了系統(tǒng)穩(wěn)態(tài)誤差、調(diào)整時(shí)間縮短,但仍然存在超調(diào),不能滿足系統(tǒng)在不同工況下穩(wěn)定運(yùn)行的要求,進(jìn)而提出了模糊控制策略研究。設(shè)計(jì)了模糊PID控制器,分析了系統(tǒng)在階躍和方波輸入信號(hào)下的響應(yīng)曲線,同時(shí)進(jìn)行了系統(tǒng)優(yōu)化。經(jīng)數(shù)字仿真證明:模糊PID控制器的效果優(yōu)于經(jīng)典PID控制器,并能實(shí)現(xiàn)參數(shù)在線調(diào)整,滿足了設(shè)計(jì)要求。設(shè)計(jì)了以PLC為核心的硬件控制電路、傳感器電路和相關(guān)接口電路,編寫了系統(tǒng)控制軟件程序和觸摸屏程序,給出了程序流程框圖。搭建了油門控制實(shí)驗(yàn)系統(tǒng),對(duì)系統(tǒng)程序在軟件和實(shí)驗(yàn)環(huán)境下進(jìn)行了運(yùn)行、調(diào)試和優(yōu)化,完成了實(shí)驗(yàn)和設(shè)計(jì)任務(wù)。仿真和部分實(shí)驗(yàn)證明本文設(shè)計(jì)的油門電控系統(tǒng)性能可靠,運(yùn)行穩(wěn)定,可應(yīng)用于鉆機(jī)電控系統(tǒng)。
[Abstract]:With the rapid development of national economy, traffic construction has entered a new stage of rapid development, in which highway and railway construction need to pass through a large number of tunnels. Serious geological disasters such as deformation and collapse of surrounding rock, water gushing and gas explosion often occur in tunnel construction, resulting in heavy casualties and property losses. The usual solution is to use drilling rigs ahead to carry out geological forecasting. Electronic control system is an important part of drilling rig. Therefore, it is of great significance to study the electronic control system of multi-function drilling rig to improve the level of automation of drilling rig and ensure the safety of construction. In this paper, the throttle control circuit, power supply circuit, startup circuit, monitoring circuit, safety protection circuit, hydraulic lock circuit, preheating circuit, pump control circuit and remote control circuit of the multifunctional drilling rig are designed, and the throttle control circuit is studied emphatically. The composition and working principle of the throttle system of the multifunctional drilling rig are analyzed. The mathematical model of the control system is established, and the simulation results show that the system is stable, but there are oscillations, over-harmonic steady-state errors. It is necessary to study the control strategy. Firstly, the classical pid control algorithm is adopted. After the pid parameters are adjusted, the steady-state error of the system is eliminated and the adjustment time is shortened, but there is still overshoot, which can not meet the requirements of stable operation of the system under different operating conditions. Furthermore, a fuzzy control strategy is proposed. The fuzzy pid controller is designed, the response curve of the system under step and square wave input signal is analyzed, and the system optimization is carried out. The results of digital simulation show that the fuzzy pid controller is better than the classical pid controller, and the parameters can be adjusted online to meet the design requirements. The hardware control circuit, sensor circuit and related interface circuit based on PLC are designed. The system control software program and touch screen program are written, and the flow chart of the program is given. The throttle control experiment system is built, and the system program is run, debugged and optimized in the software and experimental environment, and the experiment and design tasks are completed. The simulation and some experiments show that the throttle electronic control system designed in this paper is reliable in performance and stable in operation, and can be applied to the electric control system of drilling rig.
【學(xué)位授予單位】：石家莊鐵道大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U455.3

【參考文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 彭勇剛;模糊控制工程應(yīng)用若干問(wèn)題研究[D];浙江大學(xué);2008年

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本文編號(hào)：2057042