本文選題：預(yù)應(yīng)力張拉 + 智能控制��； 參考：《長安大學(xué)》2017年碩士論文

【摘要】：預(yù)應(yīng)力張拉在預(yù)應(yīng)力梁的生產(chǎn)過程中起到至關(guān)重要的作用。本文針對傳統(tǒng)預(yù)應(yīng)力張拉技術(shù)存在的張拉控制精度不高、張拉同步性誤差較大、人工因素不可控等眾多問題,應(yīng)用自動控制技術(shù)、傳感器技術(shù)和無線通信技術(shù)設(shè)計了一套橋梁預(yù)應(yīng)力智能張拉控制系統(tǒng)。該系統(tǒng)能夠?qū)崟r采集監(jiān)測張拉力和鋼絞線伸長量,自動精確控制張拉作業(yè)以及張拉過程的同步性。本文首先在對預(yù)應(yīng)力張拉施工技術(shù)規(guī)范、質(zhì)量控制要求及系統(tǒng)功能需求研究分析的基礎(chǔ)上,設(shè)計了橋梁預(yù)應(yīng)力智能張拉控制系統(tǒng)的總體方案,主要包括智能張拉從控控制系統(tǒng)和智能張拉主控控制系統(tǒng)兩部分。接著,對智能張拉從控控制系統(tǒng)和智能張拉主控控制系統(tǒng)分別進行了硬件設(shè)計。智能張拉從控控制系統(tǒng)主要包括單片機最小系統(tǒng)、電源模塊、數(shù)據(jù)采集模塊、執(zhí)行模塊、顯示模塊以及主從控制系統(tǒng)無線通信模塊。智能張拉主控控制系統(tǒng)主要包括單片機最小系統(tǒng)、電源模塊、存儲模塊、USB接口模塊、顯示模塊、報警模塊以及主從控制系統(tǒng)無線通信模塊。最后,應(yīng)用AMESim仿真軟件根據(jù)系統(tǒng)工作原理圖從張拉負載環(huán)節(jié)、變頻器電機環(huán)節(jié)和液壓系統(tǒng)環(huán)節(jié)三個環(huán)節(jié)建立AMESim仿真模型,并進行開環(huán)控制和PID控制仿真實驗。根據(jù)仿真結(jié)果分析可以得出,PID控制算法能夠有效地提高預(yù)應(yīng)力張拉控制精度。本文的研究成果在預(yù)應(yīng)力張拉施工中可以有效克服傳統(tǒng)張拉技術(shù)的缺點,提高張拉過程的施工質(zhì)量,為今后在預(yù)應(yīng)力張拉的進一步研究提供參考依據(jù)。
[Abstract]:Prestress tensioning plays an important role in the production of prestressed beams. In this paper, the automatic control technology is applied to solve the problems existing in the traditional prestressing tensioning technology, such as low tension control precision, large tension synchronization error, uncontrollable artificial factors, and so on. Sensor technology and wireless communication technology design a set of bridge prestressing intelligent tension control system. The system can collect and monitor tension force and wire elongation in real time, and automatically and accurately control the synchronism of tension operation and tensioning process. Based on the research and analysis of the technical specifications, quality control requirements and system function requirements of prestressed tensioning construction, the overall scheme of intelligent tension control system for bridge prestressing is designed in this paper. It mainly includes two parts: intelligent tension slave control system and intelligent tension master control system. Then, the hardware design of the intelligent tension slave control system and the intelligent tension master control system are carried out. The intelligent tension slave control system mainly includes the MCU minimum system, the power supply module, the data acquisition module, the execution module, the display module and the master-slave control system wireless communication module. The intelligent tensioning master control system mainly includes single chip microcomputer minimum system, power supply module, storage module and USB interface module, display module, alarm module and master-slave control system wireless communication module. Finally, according to the working principle diagram of the system, the AMESim simulation software is used to establish the AMESim simulation model from the three links of stretching the load link, the inverter motor link and the hydraulic system link, and carries on the open loop control and the PID control simulation experiment. According to the analysis of simulation results, it can be concluded that pid control algorithm can effectively improve the precision of prestressing tension control. The research results of this paper can effectively overcome the shortcomings of the traditional tensioning technology and improve the construction quality of the tensioning process in the prestress tensioning construction, and provide a reference basis for the further study of the prestressing tensioning in the future.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U445.57;TP273

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