零差制 的英文怎麼說
中文拼音 [língchāzhì]
零差制
英文
zero-balanced system-
It is one of the pivotal factors to measure and control the geometrical size, shape error and positional error in order to ensure the device quality. so the online measurement of their geometrical size and shape error and positional error is the problem to be solved
大型工件幾何尺寸、形位誤差的測量和控制,是保證整套設備質量的關鍵因素之一,因而,大型零部件及組裝件的整體幾何參數和形位誤差的測量、零部件加工的在線測量,就成為急需解決的問題之一。The thesis developed the optimization design software of geometric parameter for the worm gear including strength check module, the drawing contact lines module, the change lines of tooth thickness of worm, and the parametric modelling software for the reducer which includes parametric modelling of parts and assembly. the cad prototype system is very convenient because of its accessible interfere, simple operation and written in chinese. by input design parameters , the cad system can make optimization design and strength check for the worm gear , draw contact lines of tooth flank of worm - gear and change line of tooth thickness of worm , judge if the tooth flanks of worm undercut and if the sideward tooth of worm - gear hob come to a point , make project design and structure design for the reducer and draw its 2d parts and assembly
研究和開發了平面二次包絡環面蝸桿傳動的參數優化設計和校核軟體系統:包括幾何參數設計計算模塊,強度校核模塊,繪制齒面接觸線模塊,蝸桿齒厚變化曲線模塊和蝸桿根切判別模塊;開發了平面二次包絡環面蝸桿減速器外形與結構尺寸數據庫以及傳動效率數據庫,建立了平面二次包絡環面蝸桿傳動公差及極限偏差數據庫;開發了平面二次包絡環面蝸桿減速器參數化建模軟體:包括零部件的參數化建模模塊和裝配圖的參數化建模模塊,其中零部件的參數化建模包括蝸桿軸系的參數化建模、蝸輪軸系的參數化建模、箱體的參數化建模、端蓋的參數化建模、軸承的參數化建模和其它零部件的參數化建模軟體模塊。Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail
針對一維單脈沖雷達體制,分析了地形目標回波特性;建立了地形跟隨雷達空地測距的幾何關系;利用雷達收發信號,導出了地形跟隨雷達和差接收通道的回波信號表達式,進行了波形模擬,得到了地形跟隨雷達的地面散射產生回波在時域中的特性;根據和差回波特性,闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用,並給出了真實雷達對外輻射試驗的結果,驗證了文中的模擬。Considering the advanced business mode and huge capital strength, we must renew our business conception and management to shorten the gap with foreign companies
針對外資零售業成熟的經營模式和龐大的資本實力,必須更新經營觀念和管理體制,縮小與外資零售企業的差距。With the software of simulating low - pressure vacuum carburizing process and computer control system, carburizing process parameters are controlled accurately. the minimum error of carburizing layer depth, the optimal distribution of carbon concentration in carburizing layer and the minimum distortion are insured
均勻布置鼠籠狀加熱元件和多組滲碳氣氛噴嘴,並對滲碳參數進行精確控制,可保證零件最小的滲層深度誤差最佳的滲層碳濃度分佈。When the accelerating time of frequency is equal to zero, this paper discusses the gain of inventer - induction motor under the vector controlled and non - vect or c ontrolled. at the same time, this paper discusses it while the time of slope is no t zero. the m othod of the slippery and difference is introduced in this papaer for designing the system contained inv - m
討論了頻率加速時間為零時,矢量控制和非矢量控制兩種情況的通用變頻器異步電動機的傳遞函數,同時也討論了斜坡給定時間不為零的通用變頻器異步電動機傳遞函數,介紹了滑差限定的方法,為設計含有inv - m的系統提高提供了理論依據Abstract : when the accelerating time of frequency is equal to zero, this paper discusses the gain of inventer - induction motor under the vector controlled and non - vect or c ontrolled. at the same time, this paper discusses it while the time of slope is no t zero. the m othod of the slippery and difference is introduced in this papaer for designing the system contained inv - m
文摘:討論了頻率加速時間為零時,矢量控制和非矢量控制兩種情況的通用變頻器異步電動機的傳遞函數,同時也討論了斜坡給定時間不為零的通用變頻器異步電動機傳遞函數,介紹了滑差限定的方法,為設計含有inv - m的系統提高提供了理論依據As the new generation product replacing j53 - 1600a model, it adopts accessories of j53 - 1600a excepting some accessory such as machine frame. in addition to its standard parts are mostly universal and wearing parts are completely universal, its platform, brake and balance cylinder are improved and designed to be more convenient for maintaining. j53 - 1600c model machine frame guide rail adopts wear - proof paneling, radically solving the problem that j53 - 1600a model press owns poor abrasion resistance and has bad effect on kinematic accuracy during application owing to no paneling on its integrated body
J53 - 1600c型是在j53 - 1600a型基礎上的改進型,是j53 - 1600a型換代產品,除機架等個別零件外,其它件採用了j53 - 1600a型的零件,而且標準件基本完全通用易損件完全通用,另外平臺制動平衡缸改進設計使設備維護更為方便, j53 - 1600c型機架導軌採用耐磨鑲板從根本上解決了j53 - 1600a整體機身無鑲板耐磨性差,使用后影響運動精度的問題。For these reasons, we can apply the theory of the model reference self - adaptive control syetem design based on the theorem of balance point stabilization in the force system of asymmetric cylinder controlled by symmetric valve. the main idea of model reference self - adaptive controller is to make the self - adaptive control error incline to zero as time passed. the task to design adaptive controller is to find the control input that can make the output of the controlled system to follow that of the reference model
因此將基於平衡點穩定定理的模型參考自適應控制系統設計理論應用於閥控非對稱缸力系統中,其基本原理是使自適應控制誤差隨時間的推移而趨向于零,自適應控制器設計的目的是尋找使被控系統的輸出漸近一致的跟隨參考模型的輸出的控制輸入,以此來改善被控系統的性能。Along to the set - up of social democracies " commodity circulation, our country ' s retailing trade developed very quickly. compared with multinational retailing group, we still have great gap on basic conditions. our internal retailers are facing strong competition from more and more foreign retailers entering
隨著社會主義商品經濟流通體制的建立,國內零售業得到了空前的發展,但是與國際上的零售跨國集團相比,還有巨大的差距,隨著外資零售企業的大量湧入,國內零售業正面臨著嚴峻的挑戰。To effectively control and manage engineering expense to contribute favorable or zero manufacturing variations
有效地控制和管理工程費用,爭取製造成本差異控制在零或節余Technical drawings - dimensioning and tolerancing - non - rigid parts
技術制圖.尺寸和公差.非鋼性零件In this paper, a new control strategy based on the adaptive deadbeat voltage space vector is presented. this control scheme has a lower sample frequency and a smaller difference between switch frequency and sample frequency. it has many advantages, such as producing zero vectors organically, tracing exactly, non - shaking, etc. and its dynamic response is better
對于電能質量調節器來講, pwm跟隨指令參考信號的控制性能在很大程度上影響著裝置的補償效果,本文選擇無差拍電壓空間矢量控制為系統控制策略,這種控制方法具有采樣頻率低,開關頻率與采樣頻率的差距小,能有機地產主零矢量、跟蹤精確以及無抖振等優點,動態響應快。The mrafc scheme employs a reference model to provide closed - loop performance feedback for generating or modifying a fuzzy controller ' s knowledge base. the adaptive compensation term of optimal approximation error is adopted. by theoretical analysis, the closed - loop fuzzy control system is proved to be globally stable, with tracking error converging to zero
該方案利用參考模型作為閉環系統的反饋信號來產生、調節模糊控制器的規則庫,並通過引入最優逼近誤差的自適應補償項來消除建模誤差的影響,不但能保證閉環系統穩定,而且可使跟蹤誤差收斂到零。Firstly, based on backstepping and the supervisory control strategy, a robust adaptive fuzzy controller is designed for a class of nonlinear systems. the first type fuzzy logic system is used to approximate the unknown part of the process. the adaptive compensation term of the optimal approximation error is adopted
本文首先針對一類不確定非線性系統,基於backstepping方法,利用監督控制,引入最優逼近誤差的自適應補償項,並利用型模糊邏輯系統逼近系統的未知部分,提出了一種魯棒自適應模糊控制器設計方案,運用李亞普諾夫第二方法,先證明了閉環模糊控制系統全狀態有界,再證明了跟蹤誤差收斂到零。In the production of the copperplate rolling, the fluctuation with thickness of supplied materials, the disparity of the material performance, the deviation of actually used apparatus, external interference and apparatus change of spare part, etc. can not make traditional pid control set up accurate mathematical model, reach the ideal control result. thus, the precision of copperplate products can ’ t meet the demands far away
在銅板軋制生產中,由於帶材來料厚度的波動和材料性能的不均勻性,實際使用的設備偏差性、外界的干擾和設備零部件的變化等都會使傳統的pid控制很難建立其精確的數學模型,達不到理想的控制效果,這樣會使銅板加工成品的精度遠遠達不到要求。A nonlinear visual mapping model of the 2d eye - in - hand robotic visual tracking problem is proposed and a new visual tracking controller based on artificial neural network with bp - ga mixed algorithms is designed. simulation results show that this method can drive the static tracking error to zero quickly. moreover, a new nonlinear visual mapping model of the 3dof eye - in - hand robotic visual tracking problem is studied and a new visual tracking
( 5 )針對基於圖像雅可比矩陣的機器人手眼平動視覺跟蹤問題,建立了新的視覺映射模型,提出了基於bp一ga混合學習演算法的人一神經網路機器人平動視覺跟蹤方法,模擬結果表明該方法控制下系統跟蹤誤差快速趨近於零。Based on the specilized production of interim products, this paper mainly focuses on the study of two aspects, dealing with the problems such as incompleteness and improperness of costing, inefficient cost controlling, etc. this paper also introduces the delimitation cost calculation method consisting with the characteristics of interim products to facilitate the items of costing ; discusses the demand of financial management development and accounting information quality in the era of knowledge economy ; puts forward a viewpoint that business credits are the excess value in human recourses ; conducts a study on the characteristics of shipyards ’ production organization and management requirements in the view of the features of specialized production of interim products and of the problems in cost calculation concerning ill objectivity, pertinence and poor readability ; and brings out delimitation cost calculation method in terms of batch parts method, thereby enrichs the contents of human resource capital calculation and quality costing of shipbuilding in accordance with the characteristics and requirements of specified interim products production in modern shipbuilding industries, this paper carries out the research of the
因此,本文基於中間產品專業化生產,針對中國船廠成本核算內容不完整、核算方法不適應,成本控制效果差等問題著重進行了兩方面的研究工作。提出適應中間產品特徵的分層成本計演算法,完善成本核算內容。探討知識經濟時代財務管理發展要求和會計信息質量要求,提出商譽是人力資本超額使用價值的觀點,針對現代造船中間產品專業化生產所具有的特點,以及成本核算中客觀性和相關性差,可讀性不強等問題,研究了船廠生產組織特點和管理要求,提出了延伸于分批零件法的分層成本計演算法,拓展了造船人力資本和質量成本的核算內容。We have also researched the supervision functions of china ' s government over the medicine retail market through comparing those medicine retail markets in developed countries. the positivist study shows that mere are many drawbacks in china ' s medicine retail market owing to the stagnant circulation of medicine, the disordered macro - control by the government, imperfect laws and rules in supervision, superficial management by the government and the poor performance of different retailers and so on. the reasons are as follows : a
實證研究表明,由於我國藥品流通體制不順、政府宏觀管理職能失調、藥品監督法律法規不健全、政府監督管理力度不夠及零售藥房經營者素質參差不齊等原因,我國藥品零售市場存在著許多問題,主要表現在:零售藥房的布局不合理;進貨渠道混亂;執業藥師短缺;零售藥房經營管理不善;藥品連鎖經營不規范; otc制定不完善等方面。A system of tolerance is necessary to allow the variations in accuracy that should occur during manufacture, and to provide interchangeable possible of the parts
必須有一種公差制來考慮製造過程中必然會產生不同的精度誤差,並且保證零部件的可互換性。分享友人