針型閥 的英文怎麼說
中文拼音 [zhēnxíngfá]
針型閥
英文
needle-type valve-
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一般壓力表氣壓表抗震壓力表充油壓力表全不銹鋼壓力表膜盒微壓表電接點壓力表冷媒壓力表真空壓力表壓力真空表隔膜壓力表微型壓力表差壓表微差壓表絕壓表精密壓力表耐高溫壓力表蒸氣壓力表汽車燃氣壓力表醫用壓力表遠傳壓力表衛生型壓力表壓力表緩沖管壓力表冷凝散熱器壓力表翅片散熱器壓力表開關不銹鋼連接彎管不銹鋼連接軟管轉換接頭油壓連接頭壓力表針閥節流閥及過壓保護附件濾油網加油口油溫油麵計雙金屬溫度計等。Stainless steel corrosion - resistant needle valve
不銹鋼防腐針型閥The thesis roots in the item supported by " fifteen " aviation funds, - new type aeronautic linear dc motor ( ldcm ), study its classes characteristics and work principle, mainly researches the drive and control technique of aeronautic linear dc step motor ( ldcsm ) using in emergency discharging oil valve on airplane
本文源於「十五」航空支撐基金項目-新型航空用直線直流電動機。論文研究了直線直流電動機的分類、特點及其工作原理，重點針對飛機應急放油閥用航空直線直流步進電動機驅動控制技術進行了研究。Through consulting lots of relevant references, present research of direct drive volume control hydraulic servo system is summarized in this paper, the principle and character of this system are expatiated, the principle of vector control is introduced. at the same time, the mathematical model of ac asynchronous motor is set up based on the vector control theory. the mathematical models of both the pump controlled motor and pump controlled cylinder are set up and simulated in this paper
在查閱大量國內外相關文獻的基礎上，本文綜述了國內外對該系統研究概況，闡述了該類系統原理和特點;闡述了矢量控制的基本原理，並基於這一原理建立交流異步電動機的數學模型;分別建立了泵控馬達系統和泵控缸系統的數學模型，並給出了模擬分析;設計了用於泵控馬達系統的集成閥塊，加工了密閉壓力油罐;針對現有直驅式電液伺服裝置所存在的問題，本文主要針對系統工作過程中所產生的噪音與爬行問題進行了一定的研究。In this paper, according to the need of developing new style column, new style fixed - valve tray - rectangular fixed - valve tray with fold edges and common rectangular fixed - valve tray were studied from experiments and cfd simulation
本文針對開發塔設備新類型的需要，從實驗和cfd模擬兩方面對新型的固定閥塔板-帶折邊矩形固定閥塔板以及普通的矩形固定閥塔板進行了研究。Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc
本文根據大量的國內外文獻，對研配液壓機的工作原理及設計結構進行了簡介；對位置同步的控制方法進行了比較分析，提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案；在此基礎上著重對比例閥控非對稱缸建模，最後得到位置控制系統的總體數學模型，從理論上對同步系統動態特性進行了分析，並用pid控制器進行參數整定，減小雙缸同步誤差、提高系統的動態響應性能；其中控制性能的分析藉助于matlab軟體中的simulink工具箱，由已建立的數學模型形成模擬模型，得到可視化的模擬結果，從而利於交互方式下調整參數，了解不同的參數對系統的影響，優化同步系統的動態性能；在深入了解系統的動作特性后，對plc控制研配液壓機的原理進行了探討，針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃，編制出研配液壓機動作控製程序，在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。Aimed at the high - efficiency and high - credibility of great precious vacuum resin dosing equipment and with the help of engineering practice of vcd - 800, the metric pump, metric valve and fault - auto - diagnosis system were studied, which were key parts of the equipment
本課題針對大型精密樹脂灌注機的高效、高可靠要求，結合vcd - 800型灌注機的工程實踐，在前人工作的基礎上對灌注機的計量泵、灌注強制閥和故障自診斷系統等關鍵部件、關鍵技術進行了深入的研究。Xh rubber slowly - closing cut - off vavle is a new water supply and drainage vavle with full rubber structure, duck - mouthed appearance and functions or positive flow - in and reserve cut - off. according to thrust analysis and calculation as well as different operation mechanism and different rubber products by special processing. all will be open at weak hydraulic pressure is higher, the vavle gate will open more greatly and the water flow is greater. at reserve operation, the vavle gate closes naturally and seals tightly cut - off vavle ; the back pressure is higher, the vavle gate closes more tightly and the seal effect is better. it is used widely in various drainage exit to prevent from pouring backwards and flowing backwards in city planning, water conservancy and sewage disposal etc. it is the ideal productto replace flap vavle
Xf型橡膠緩閉逆止閥是一種全橡膠結構外形呈「鴨嘴狀」 ，具有「正向流入反向逆止」功能的新型給排水閥門產品。它根據受力分析和受力計算，針對不同的工況，採用不同的設計機理，選用不同的橡膠配方，並按特殊工藝製作而成。正向工作時，水由進水口流入，微小的水壓，便能打開閥門，水壓越大，閥門開啟越大，水流量越大。Genetic algorithm is used to optimize the parameters of pid controller that is used to control the plant lon ( local operating network ) is designed to control vav air - conditioning system. by this means the static pressure control and minimum total supply air volume control are experimented. the paper analyzes the coupling among loops, the whole system ' s stability and energy saving effect under the two control methods
針對目前變風量空調系統的模型都是用機理建模方法建立的情況，本論文用最小二乘法對機組部分進行系統辨識，建立了水閥?送風溫度、變頻風機?靜壓兩個迴路的模型，經驗證比較接近實際系統；採用遺傳演算法對pid控制器的參數進行尋優，尋優結果令人滿意；設計了變風量空調系統的lon控制網路，以此為實現手段，進行了定靜壓控制和最小總送風量控制，並在兩種控制方式下，分析了各個迴路的耦合情況、兩種控制方式的穩定性和節能效果。To prevent from the errors on the voltage - mode switching power supply for electromagnetic valve of fuel system, a new current - mode switching power supply is designed
針對電壓型開關電源在燃油系統電磁閥使用中存在的問題，本文設計了新型電流型開關電源。Finally, being aimed at a certain machine model, a experiment research about the means of relief valve to reduce hydraulic impact is carried out, which prove the founded prove founded mathematics model. also, some pending coefficient are amended and the optimum pressure of relief valve is determined. at the same time, a experiment and emulation research about the means of accumulator to decrease hydraulic impact is carried put, in which the optimum pneumatic pressure and the optimum primitive capacity of accumulator were determined
最後針對某一具體機型，對用溢流閥方式減小液壓沖擊進行了實驗研究，驗證了所建立的數學模型並修正了待定系數，確定了溢流閥的最優調定壓力；對用蓄能器方式減小液壓沖擊進行了實驗和模擬研究，確定了蓄能器的最優充氣壓力和最優初始容積。Yoke sleeve ? aluminum - bronze yoke sleeve minimizes operating torque. larger sizes have needle bearing type thrust bearings
軛架套管?鋁青銅軛架套管最大程度減少操作扭矩。較大通徑的截止閥配置針形軸承類型的止推軸承。Following the development trend of valve cad, according to the requirements of the chengdu chengfeng valve limited company and based on mdt, this article develops the 3d parametric valve design system. the main work and achievements are as follows : based on the 2d engineering drawing of the several different valves the company provided, the 3d parametric basic drawing - base is set up using mdt which is a 3d design platform, including all the parts drawings and the general assemblage drawings of the valve models ; in accordance with the common steps of the valve design, the parameter editors are designed to edit, import and export the valve parameters and are provided with the function of double synchronization on parameters displaying for convenience in use ; in order to meet demands of users and make the design more accurate, reliable and practical, the assistant formula calculators are developed, which can automatically do all types of structure calculation in the procedure of valve design, and export the calculation manual of valve design ; in order to make designers more rivalries, taking full advantage of internetmntranet technology, the virtual design center is developed, which integrate netmeeting, terminal service and super links, so that the designer can directl y use applications on remote server, communicate with other designers on intranet / internet, share software resources and realize long - distance cooperative design
根據閥門cad發展趨勢，針對成都乘風閥門有限責任公司閥門設計現狀，本課題基於mdt三維設計平臺開發了閥門三維參數化設計系統，主要完成的工作和成果如下：根據公司提供的幾種不同結構閥門的二維工程圖紙，利用mdt三維設計平臺建立了三維參數化基本圖形庫，其中包括所有零部件和總裝配模型圖及二維工程圖；依照閥門設計的一般步驟設計了參數編輯器，用來對閥門尺寸參數進行編輯、輸入、輸出等，具有參數雙向同步顯示功能，使用十分靈活方便；根據用戶的需求，為了使設計達到精確、可靠、實用的要求，設計開發了輔助計算器，能自動完成閥門設計過程中所需的各種結構計算，並可以輸出閥門設計計算說明書；為了使設計人員更具有競爭力，本系統利用internet intranet技術設計開發了虛擬設計中心子模塊，虛擬設計中心集成了網路會議、終端服務、超級鏈接等功能，可以讓設計師直接使用服務器上的應用程序，與intranet internet上的其他設計專家進行交流、共享軟體資源，實現遠程協同設計。This paper discussed the relationship of the flow capacity and the inner structure, completed the numerical simulation of flow field and the characteristic of resistance, set up the finite element model and done the finite element calculation of the existing component and the improvement component of the cleaning valve, and done the experimentation manner
對清洗液閥門現在的型號和改進的型號的流道形狀建立有限元模型，進行有限元分析計算，獲得相應的過流能力的值，並進行比較，提出提高過流能力的新方案，並針對理論計算提出實驗系統方案。( 1 ) wave shape is analysed by excel, and mathematic module is built
（ 1 ）利用excel對針閥升程信號的波形進行回歸分析，建立針閥升程曲線的數學模型。In this paper, we also put forward a incremental learning algorithm for such a model. when the number of new samples attains or exceeds the valve, we use these samples to make a model, and merge this model with current model, thus get a new current model
針對這個問題，論文提出了一種增量學習方法:當新樣本集的樣本數達到或超過閥值時，用新樣本集建立一個模型，與當前的模型合併，得到最新模型。The authors carry out data collection and calculation for fuel injection pressure and needle valve lift signals measured on the fuel pump test bed by using self - developed software. on the basis of experiments, four criteria for analysing fuel injection process are proposed and the comparison of performances between au and nu type fuel outlet valves is made
作者用自行開發的軟體對在油泵試驗臺上測得的噴油壓力、針閥升程信號進行了數據採集和計算，在試驗的基礎上提出了分析噴油過程的四個判據，給出了au型和nu型出油閥的性能比較結果。After completing the static and dynamic experiments on the5 electro - hydraulic component & system test unit, the author made further experiment research in the close loop system of hydraulic elevator, and get satisfying testing results. to sum up, the author build a set of theories and formulary for the design of integrated valve, change the traditional methods for the structure design of hydraulic elevator valves by the tools of pro / e, carry out a lot tests of the integrated valve on the special test platform
縱觀全文，作者對針對液壓電梯專用集成閥建立了一套比較完整的設計計算的理論依據；採用三維造型軟體對集成閥進行實體建模，改變了液壓電梯專用集成閥的傳統結構設計方法，使集成閥的結構設計達到了更好的效果；利用專門的電液元件測試平臺和液壓電梯臺架對集成閥進行了比較全面的實驗，拓展了新元件的實驗研究手段。After that, a complete solution to design the pipe rupture valve of the hydraulic elevator with fluent and matlab simulation software ; deserting the traditional method, gives a solid modeling for the pipe rupture valve with the 3 - d cad software which offers greater effects for the structure design of the pipe rupture valve ; using special electro hydraulic and hydraulic elevator experiment rig, the pipe rupture valve is completed test. the pipe rupture valve has important significance for the utilization and production of the hydraulic elevator technique
然後針對液壓電梯專用限速切斷閥，通過fluent流場模擬軟體和matlab模擬軟體的分析，建立了一套比較完整的設計計算的方法；採用三維造型軟體對限速切斷閥進行了實體建模，改變了傳統的結構設計方法，使限速切斷閥的結構設計達到了更好的效果；利用專門的電液元件測試平臺和液壓電梯臺架對限速切斷閥進行了比較全面的實驗，拓展了新元件的實驗研究手段。Small medical gas cylinders - pin - index yoke - type valve connections
小型醫用氣瓶.針導軛式閥連接分享友人