【摘要】：水壓伺服控制技術(shù)作為水壓傳動(dòng)領(lǐng)域的一個(gè)重要研究方向,近年來(lái)得到迅速發(fā)展,而水壓伺服控制閥在整個(gè)水壓伺服控制系統(tǒng)中起著關(guān)鍵作用,其性能優(yōu)劣直接影響著整個(gè)系統(tǒng)的性能。基于超磁致伸縮材料的優(yōu)越性能提出了一種雙相對(duì)置超磁致伸縮自傳感驅(qū)動(dòng)器新概念,并結(jié)合水壓伺服控制技術(shù),研究和探討了其在水壓伺服控制元件中的工作機(jī)理及應(yīng)用特性。開(kāi)展了與其相適應(yīng)的水壓伺服控制閥的結(jié)構(gòu)設(shè)計(jì)及性能參數(shù)匹配和實(shí)驗(yàn)研究。 開(kāi)展了雙相對(duì)置超磁致伸縮自傳感驅(qū)動(dòng)器的設(shè)計(jì)研究,在對(duì)GMM自傳感驅(qū)動(dòng)器、彈簧管以及滑閥進(jìn)行結(jié)構(gòu)分析和力學(xué)分析基礎(chǔ)上,研究了GMM自傳感驅(qū)動(dòng)器位移以及力輸出特性�；贕MM的磁致伸縮效應(yīng)和預(yù)壓力效應(yīng),設(shè)計(jì)出雙相對(duì)置超磁致伸縮自傳感驅(qū)動(dòng)器,同時(shí),進(jìn)行了GMM自傳感驅(qū)動(dòng)器預(yù)壓力鎖緊微調(diào)裝置的研究。提出了雙相對(duì)置超磁致伸縮自傳感驅(qū)動(dòng)器的設(shè)計(jì)理論和方法。 針對(duì)雙相對(duì)置超磁致伸縮自傳感驅(qū)動(dòng)器的結(jié)構(gòu)特點(diǎn),運(yùn)用ANSYS仿真軟件對(duì)該自傳感驅(qū)動(dòng)器進(jìn)行了靜、動(dòng)態(tài)特性分析,探討了其力、位移輸出特性以及模態(tài)振型；研究了水壓伺服控制閥反饋桿剛度計(jì)算方法,并分析了驅(qū)動(dòng)器位移與滑閥兩端液壓力、滑閥開(kāi)口度的關(guān)系以及反饋桿剛度與滑閥開(kāi)口度的關(guān)系,提出了水壓伺服控制閥反饋桿設(shè)計(jì)方法。 基于靜壓支承理論,探討了水壓功率級(jí)滑閥的靜壓支承結(jié)構(gòu)設(shè)計(jì)方法,并通過(guò)仿真分析提出了具有靜壓支承結(jié)構(gòu)的水壓伺服控制閥滑閥的靜態(tài)特性。通過(guò)運(yùn)用液阻理論,并引入靜壓結(jié)構(gòu)參數(shù)、環(huán)縫—噴嘴結(jié)構(gòu)參數(shù),建立了水壓伺服控制閥流量—壓力控制特性、負(fù)載壓力控制特性方程；通過(guò)研究靜壓結(jié)構(gòu)最佳結(jié)構(gòu)系數(shù)、最優(yōu)控制壓力特性,建立了滑閥中靜壓結(jié)構(gòu)設(shè)計(jì)的關(guān)系方程,提出了具體的靜壓支承結(jié)構(gòu)設(shè)計(jì)方法；提出了水壓伺服控制閥深海壓力平衡裝置的設(shè)計(jì)方法。 通過(guò)分析水壓伺服控制閥關(guān)鍵零件的材料性能以及加工制造與裝配工藝,并通過(guò)成組、磨配、壓裝等工藝保證伺服閥加工精度的方法,提出了最佳的加工制造精度和裝配精度及加工工藝方法；研制了GMM自傳感驅(qū)動(dòng)力反饋二級(jí)和直接力反饋兩種水壓伺服控制閥樣機(jī)�；谒畨核欧y性能測(cè)試實(shí)驗(yàn)裝置和測(cè)試系統(tǒng)實(shí)現(xiàn)了新型水壓伺服控制閥樣機(jī)的靜態(tài)性能測(cè)試,提出了水壓伺服控制閥性能測(cè)試技術(shù)和方法。
[Abstract]:As an important research direction in the field of hydraulic transmission, hydraulic servo control technology has been developed rapidly in recent years, and the hydraulic servo control valve plays a key role in the whole hydraulic servo control system. Its performance directly affects the performance of the whole system. Based on the superior performance of giant magnetostrictive material, a new concept of double relative giant magnetostrictive self-sensing actuator is proposed, and the hydraulic servo control technology is combined. The working mechanism and application characteristics of the hydraulic servo control element are studied and discussed. The structure design, performance parameter matching and experimental study of the hydraulic servo control valve are carried out. The design and research of double relative giant magnetostrictive self-sensing actuator are carried out. Based on the structural analysis and mechanical analysis of GMM self-sensing driver, spring tube and slide valve, the displacement and force output characteristics of GMM self-sensing driver are studied. Based on the magnetostrictive effect and pressure-pressured effect of GMM, a double-relative giant magnetostrictive self-sensing actuator is designed. At the same time, the pre-pressure-locking and fine-tuning device of GMM self-sensing driver is studied. The design theory and method of double-relative giant magnetostrictive self-sensing actuator are presented. According to the structural characteristics of dual-relative giant magnetostrictive self-sensing actuator, the static and dynamic characteristics of the self-sensing actuator are analyzed by ANSYS simulation software, and its force, displacement output characteristics and modal mode are discussed. In this paper, the calculation method of feedback rod stiffness of hydraulic servo control valve is studied, and the relationship between the displacement of the driver and the pressure at both ends of the slide valve, the opening degree of the slide valve, and the relation between the stiffness of the feedback rod and the opening degree of the slide valve are analyzed. The design method of feedback rod for hydraulic servo control valve is presented. Based on the theory of hydrostatic support, the design method of hydrostatic support structure for hydrostatic power level slide valve is discussed, and the static characteristics of hydrostatic servo control valve slide valve with hydrostatic supporting structure are proposed through simulation analysis. By applying the theory of hydraulic resistance and introducing the structure parameters of hydrostatic pressure and annulus nozzle, the flow-pressure control characteristics and load-pressure control characteristic equations of hydraulic servo control valve are established. By studying the optimum structure coefficient and the optimal control pressure characteristic of the hydrostatic structure, the relation equation of the hydrostatic structure design in the slide valve is established, and the concrete design method of the hydrostatic supporting structure is put forward. The design method of deep-sea pressure balance device for hydraulic servo control valve is presented. By analyzing the material properties of the key parts of the hydraulic servo control valve and the machining, manufacturing and assembling process, the machining accuracy of the servo valve is ensured by the process of grouping, grinding and pressing, etc. The best machining and manufacturing accuracy, assembly precision and machining process method are put forward. Two kinds of hydraulic servo control valve prototype of GMM self-sensing driving force feedback and direct force feedback are developed. The static performance test of a new hydraulic servo control valve prototype is realized based on the performance test device and test system of the hydraulic servo valve. The performance testing technology and method of the hydraulic servo control valve are put forward.
【學(xué)位授予單位】：北京工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH137

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