forward control pressure 中文意思是什麼
forward control pressure
解釋
向前的桿力-
First this paper describes the composing and technics of drillers ; then the composing of control system based on s7 - 300plc is described ; then thinking of such characteristics of oil driller as complexity and long delay, this paper brings forward the control strategy of combining the fuzzy control with smith estimate control algorithm, and sets down the way of auto - driller based on discal hydraulic pressure brake. at last the experiment based on matlab by computer shows that the effect of this control mode is very good and all performance are famous
首先本文闡述了鉆機的組成與工藝特點，然後描述了基於西門子s7 - 300plc的控制系統組成，然後針對傳統鉆機自動送鉆控制策略落後的缺陷，同時考慮到鉆機的復雜性、大滯后等特點，提出了模糊控制演算法與施密斯（ smith ）預估控制演算法相結合的控制策略，給出了基於液壓盤式剎車的自動送鉆智能控制策略， matlab的模擬實驗證明該控制方式控制效果良好，各方面性能指標都達到理想要求。 -
By analyzing and experimentally verifying the model, new ways of improving mixer performance were put forward. ( 1 ) heat water should be used in the mixer ' s temperature control to make the mixer work with optimal parameters. ( 2 ) the surface materials of the mixing chamber and rotors should be chosen rationally to change material surface energy and increase friction on them. ( 3 ) when the compound was processed under higher pressure of floating weight, shallow groovers or stripes parallel to the axle of the rotor should be made on the mixing chamber internal wall to increase the real contact area and improve mixing effect
通過對模型的分析和實驗驗證，提出了提高密煉機混煉效果的新途徑： （ 1 ）密煉機溫度控制採用溫水冷卻，使密煉機處于最佳工作狀態； （ 2 ）通過合理選擇密煉室和轉子表面材料以改變材料表面能來增大膠料與它們之間的摩擦力； （ 3 ）在上頂栓壓力較大的條件下，在密煉室內壁與轉子軸線同方向加工淺的光滑槽可明顯改善混煉效果。 -
One robust compensation adjustment is presented, based on which and h ? mixed sensitivity control method, then a new h - control method is brought forward and is applied in the pressure - adjusting loop of this system. h mixed sensitivity control method is applied in the position - adjusting loop. system simulation and experiments prove that using these two control methods, performance of close - loop system is very good and excellent robustness is obtained too
在此基礎上，針對h _控制混合靈敏度優化策略的特點，提出了一種新的h _控制方法，並將其應用到卷取機步進控制系統的壓力控制環節，同時首次將h _控制混合靈敏度優化策略應用於卷取機步進控制系統的位置控制環節，系統模擬和物理系統模擬實驗證實這兩種控制方法不僅保證了閉環系統特性，還具有良好的魯棒性。 -
Based on the analysis of current control programs of the connecting and dismounting rods ? coupling for the down - the - hole, the automatic control program is put forward for the propulsion floated by rotation pressure controlling, and the program is tested
分析了新型液壓碎石機液壓系統的特點及要求，研究設計了新型的液壓控制系統，並介紹了其組成與工作原理，以及流量和壓力的調節與控制原理.該新型液壓控制系統可在操縱臺上直接控制碎石沖擊器的工作參數和性能參數，系統效率高，操縱控制舒適方便，能適應不同工況的需要 -
Due to the low mechanical efficiency and long circulating period of the down - charging system of cold bed in bar production line, this paper puts forward the improving project, which adopts ethernet supplemented by dp network, applies the fm350 - 2 advanced counter and suitable maths model and combines the technique of the transducer and hydraulic pressure drive control to realize auto - control
摘要針對棒材生產線上冷床下卸鋼系統機械效率低、運行周期長，不能適應快節奏生產的現狀，採用以工業以太網為主、 dp網為輔的網路通訊，應用西門子fm350 - 2高速計數器，通過有效的數學計算模型，結合變頻器和液壓傳動控制技術，實現網路自動化控制。 -
The two schemes those are the hydraulic control and the electromotor control of the pitch - controlled system were developed and a high pressure redundancy electro - hydraulic proportional pitch - controlled design was put forward
具體設計了變槳距機構液壓控制方案和電機控制方案，並提出了高油壓冗餘式電液比例變槳距機構的設計思路。 -
Key issues including water plugging types, waterproof board spreading methods, drop of external water pressure and lining design for resisting hydraulic pressure, etc. were studied, thus the composite waterproof and drainage system to control drainage were put forward, including grouting sphere for water plugging, primary support, grid sysytem for waterproof and drainage and lining to resist hydraulic pressure
重點就堵水方式、防水板鋪掛形式、外水壓力的折減以及抗水壓襯砌設計等技術問題進行了研究，提出了可通過注漿堵水圈、初期支護、防排水網格和抗水壓襯砌形成綜合防排水體系，它可以達到控制排放的目的。 -
Based on investigating and technical testing, this paper researches the electric upsetting process comprehensively, puts forward a over - all parameters control system, a intelligent upsetting project, a " spherically upsetting method " and a detecting pressure ? ontrolling temperature method innovatively. it is the first time to use the intelligent control theory in electric upsetting, put forward a defect removing experts system and temperature control fuzzy experts system, as following : 1. method of reconstructing intelligent upsetting machine from a traditional one, changing the parameters to controllable
本文在理論分析、調研和工藝實驗的基礎上深入研究電熱鐓粗工藝，提出了電熱鐓粗工藝全參數控制系統、智能型電鐓機的硬體框架，提出了具有創新性的「球形鐓粗法」及檢測變形阻力? ?控制變形溫度的方法，並首次把智能控制技術運用於電熱鐓粗工藝，提出了電熱鐓粗產品缺陷消除專家系統和溫度控制模糊專家系統。 -
According to the work principle, mechanical model theory and simulation analysis of the hydraulic control valve of the drilling tool, the optimal design parameters of the angle of center of circle of the high pressure hole of upside valve are proposed ; the influence of the charging and discharging lag times on palm supporting capacity is discussed ; and the theoretic basis of designing the control valve of the drilling tool is put forward in the paper
通過對調制式旋轉導向鉆井工具液壓盤閥機構的工作原理、力學模型的理論和模擬分析，給出了上盤閥高壓孔圓心角的最優設計參數；討論了充液、泄液滯后時間對巴掌支撐力的影響，提出了調制式旋轉導向鉆井工具控制閥機械設計和控制的理論依據。 -
Ground behaviour occured in mining of maluping ore block by new room - pillar with bolting in kaiyang phosphate mine are analyzed and control measures of ground pressure are put forward
對開陽磷礦馬路坪礦段延伸開采工程中採用新型錨桿護頂房柱法出現的地壓顯現問題進行了詳細的分析，並提出了地壓控制措施。 -
In order to test resistance parameters and general properties of the idler automatically and continuously, by using " the rotating inertia method " to construct mechanical drive control system, theory of realizing double parameters measurement of the idler was discussed, and by using pressure transducer parts to control the experiment pressure, method of examining the idler was also put forward
摘要為實現對托輥阻力參數及綜合性能的自動化、連續化的測試，論述了利用理論力學中「轉動慣量法」構建機械傳動控制系統，實現托輥阻力雙參數測量的原理，闡明了採用壓力傳感器部件控制試驗壓力，達到托輥產品在規定壓力下跑合要求的檢測方法。 -
This dissertation put forward a new control scheme to improve the control performance of load simulator. this control scheme which can bring the merit of the two kinds of servo valves into full play, use a pressure servo valve and a flow servo valve to control loading system
本文提出了壓力伺服閥和流量伺服閥雙閥控制方案，通過與壓力伺服閥單閥控制方案的對比，指出其特點，為減搖鰭加載臺的設計提供了新方法。 -
( 2 ) the method of finite element discrete and optimal parameter back analysis is adopted. ( 3 ) concentrated on the question of high external water pressure of the deep - lying tunnel, the basic theory and method calculating external water pressure are systematically studied. ( 4 ) based on jinping cascade 2 hydropower station, numerical simulation rain infiltration of seepage field under different drainage pattern and grouting pattern are studied, also, the high external water pressure is analyzed and studied and some seepage control measures are put forward
（ 2 ）採用有限元離散?優化法進行參數的反演分析； （ 3 ）針對深埋隧洞的高外水壓力問題，進一步分析和研究了襯砌水荷載及外水壓力的作用機理和計算方法； （ 4 ）以錦屏二級水電站深埋長引水隧洞作為本文的主要研究對象，採用考慮降雨入滲滲流場分析的方法對排水方案和灌漿封堵方案不同情況下的滲流場的水頭分佈進行了數值模擬，並對其外水壓力進行了分析和研究，提出了滲流控制的具體措施。 -
What ' s more, the methods of using external code in labview are elaborated. in addition, an input - optimizing design method is put forward. the simulation result shows that this algorithm produces a marked effect finally, a new design of the control system of adjustable pressure casting is proposed
然後，提出一種在測試計算機實現的輸入信號設計演算法，對輸入的期望信號進行處理，在不增加控製程序計算量和控制迴路周期時間的前提下，使系統的實際輸出符合設計要求。 -
Theoretical and experiment researches of transmission mechanism and control strategy of the cvt have been carried out under the project ( 59835160 ) financed by national natural science foundation which includes follow content : 1 ) the kinematic relation of the metal pushing v - belt type transmission is analyzed. the relation among oil pressure of pulley cylinder, transmission ratio and input torque under load condition is studied. optimal design method for metal pushing v - belt type continuously variable transmission is put forward
本文在國家自然科學基金重點項目（資助號： 59835160 ）資助下，對金屬帶式無級變速傳動系統的傳動機理、匹配及控制策略等進行了系統深入的理論分析和實驗研究，具體研究內容如下： 1 ）系統地分析了金屬帶無級變速傳動的基本運動規律，研究了在負載狀態下，帶輪油缸壓力與速比和輸入轉矩的關系，提出了對金屬帶式無級變速傳動系統進行優化設計的方法。 -
The factors influencing the regular and irregular longitudinal and transverse misregister were analyzed, and the corresponding solutions to the problems on plate, printing pressure adjustment, tension control of paper tape, printing technology, the machining precision, and installation precision of press were put forward
摘要針對柔版印刷中有規律性和無規律性的周向套印不準、橫向套印不準故障的影響因素進行了詳細的分析，並從印版、印刷壓力調整、紙帶的張力控制、印刷工藝、印刷機的加工精度和安裝精度等方面提出相應的解決方法。 -
This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively, control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change
本文重點討論、分析提出負荷指令前饋作用可以提高汽輪發電機快速響應特性；負荷指令的導前功能對鍋爐主控有超前控製作用，能顯著提高主蒸汽壓力的穩定性；採用預測及狀態空間法能有效改進鍋爐蒸汽溫度控製品質，在大幅度工況變化下仍有效控制蒸汽溫度在額定范圍內，提高鍋爐、汽輪機壽命及其效率；汽輪發電機組的快速響應性與汽輪發電機組負荷振蕩問題間的平衡關系，採用線性補償可以有效抑制在負荷變化梯度較大情況下發電機負荷振蕩問題。 -
In order to solve this problem better, we put forward a new - type pressure control program of high - speed train by using the experience of airplane ' s pressure control system
本文借鑒飛機座艙壓力控制的成熟經驗，提出了解決高速列車車廂壓力變化的新型壓力控制方案。 -
Abstract : the seriousness of the actuating medium pollution at hydraulic pressure system is introduced, the importance conducting analysis of pollution and the harmfulness of pollution are explained, and some measures to control the pollution are put forward
文摘:介紹了液壓系統工作介質污染的嚴重性，說明了進行污染分析的重要性和污染帶來的危害，並列出控制污染的幾種措施。 -
This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination
本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
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