壓注性能 的英文怎麼說
中文拼音 [yāzhùxìngnéng]
壓注性能
英文
injection properties-
People now pay much attention at porous aerostatic bearing which has obviously higher load capacity and better damping characteristic and stability. there are two kinds of porous aerostatic bearing : the whole porous and partial porous
多孔質氣體靜壓軸承能明顯提高軸承的承載能力,具有更優越的阻尼特性和穩定性,故得到廣泛的關注。2 ) the structure elements should be laid out symmetrically and uniformly when designing steeve - arch structure, what ' s more, the reasonable selection of section geometric size near the arch foots of first beams is paid attention to and the arrangement difficulties of steel bar due to the big eccentric pressures 2, the analyses of anti - seismic features on transverse direction of the aqueduct l ) the method of adjusting the elements " mass can be harnessed in order to even the layout of seismic loads
2 )設計吊桿式拱架支承結構時,各部分構件應當均勻對稱布置。另外,還應注意頭道梁拱腳附近截面的尺寸擬定,克服地震內力造成的大偏心受壓狀態給結構配筋設計增加的困難。 2 、橫槽向抗震性能分析1 )可利用調整構件質量的方法,使得結構的某些構件的地震荷載分佈均勻一些。Ramjet has been widely used in all kinds of supersonic and high - supersonic aircraft. it has caught more and more attention recently because there is no need for rotating impeller machine
而沖壓發動機不需轉動的葉輪機械,結構簡單,高速性能優良,被廣泛用於各類超音速和高超音速飛行器,愈來愈受到人們的關注。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。Effects of injection pressure on the microstructures and mechanical properties of short glass fiber injection - moulded reinforced polypropylene
短玻纖增強聚丙烯注射壓力對微觀結構和力學性能影響The sensitivity algorithm is a knowledge of research on the affection of parameters varies to system performance. combination with pressing force and infuse time predicted model, by using sensitivity algorithm, the affection of cast temperature, mould temperature and infuse pressure on infuse time is researched deeply, and the affection of cast temperature, infuse time and infuse pressure on the pressing force in the origination stage of extrusion process. the sensitivity analysis has huge instructing significance to the selection of parameters
靈敏度演算法是分析參數變化對系統性能影響的一種有效工具,所以本文引入靈敏度演算法,結合壓制力和浸滲時間預測模型,深入研究了澆注溫度、模具溫度和浸滲壓力對浸滲時間的影響關系,以及澆注溫度、模具溫度、浸滲時間和浸滲壓力對擠壓過程起始階段壓制力的影響,對于參數的選取,具有一定的指導意義。It is suitable for injection molding and easy process
適宜於注塑成型,工藝性能良好傳遞模壓成型,工藝性能較好。It is suitable for injection process. injection best transfers better
適宜於注塑成型,工藝性能良好傳遞模壓成型,工藝性能較好。Based on several actual cases, the temperature control measures for roller compacted concrete ( rcc ) gravity dam and arch dam such as structural jointing for construction ; lowering of concrete placing temperature ; water pipe cooling ; surface insulation ; inclined - layer placing etc., the measures to improve the material properties i. e. the application of micro - expanding concrete ; enhancement of material crack - resistance property and the requirement for the simulative analysis on both the temperature field and stress field as well as some problems concerned are summarized herein on the basis of the analysis on the material properties ; construction characteristics and the changing characteristics of the thermal stress of roller compacted concrete
摘要從碾壓混凝土的材料特性、施工特點、溫度場溫度應力的變化特點入手,結合幾個工程總結了碾壓混凝土重力壩、拱壩的分縫方式,降低澆築溫度、水管冷卻、表面保溫、施斜層碾壓等溫控措施,採用微膨脹混凝土、提高材料抗裂性能等改善材料性能措施及碾壓混凝土溫度場、應力場模擬分析的要求和應注意的問題。The voltage transformer is fully enclosed type the iron core is piled up of the cold roll silicon steel sheet. the iron core, primary and secondary windings are casting resin by advanced vacuum carting equipment. it has a good ability of antipollution and moisture proof. the secondary outlet is wrapped by outlet box with three exits with different directions. it, s convenient. it can prevent from stealing electricity
本系列電壓互感器為全封閉式結構,鐵芯採用優質冷軋硅鋼片繞制,並經嚴格的熱處理,鐵芯與一次繞組和二次繞組一起以先進的真空澆注工藝用環氧樹脂澆注成型,互感器耐污穢,耐潮濕性能好二次出線端子有出線端子盒,端子盒有三個不同出線方向接線方便,並可實現防竊電措施。Applied to cast - in - situ pile, the technology of pressure grouting under pile ' s tip can increase pile ' s bearing capacity largely and the utilization ratio of material, and decrease its settlement. furthermore, this technique is better adaptable to various soil stratum and can make magnificent economic efficiency with simple facilities and construction method
樁端壓力灌漿技術用於灌注樁,能大幅度提高承載力,減小沉降,提高材料的利用率,並且設備簡單,施工工藝不復雜,經濟效益顯著,對各種地層有較好適應性。The endurance function of the insulation field is widely concerned in the power system. according to the equality between the two dimensional weibull distribution and the law of electrical aging, after the method for estimation of the voltage endurance coefficient is presented by the maximum likelihood estimation and the minimum square estimation of the two dimensional weibull distribution parameters, on the basis of the analysis of the test disadvantages under invariable voltage, the method of obtaining the voltage endurance coefficient under the intension increased by degrees is considered
電氣絕緣電老化性能是電力系統普遍關注的問題,由於二元weibull分佈與電老化定律在評價絕緣老化特性上存在等價性,本文首先介紹了二元weibull分佈參數採用極大似然法和最小二乘法估計獲得電壓壽命指數的方法,同時在分析其在恆定電壓下試驗容易出現,由於電壓選擇不當導致試驗時間過長現象的基礎上,討論了利用場強遞增方式確定電壓壽命指數的方法。In this paper, the performance of a multi - spool axial - flow compressor with a fan during operation with water ingestion is investigated
本文主要研究了多級軸流風扇壓氣機在有水或者其它液相注入時的性能特性。The results were summarized as follows : ( 1 ) diamond - like carbon films could be fabricated by plasma source ion implantation ; it was found that different parameters such as the negative voltage, frequency, gas flux influenced sp3 bond ratio of dlcs, the paper described the effect in details and showed that diamond - like carbon films with increasing negative voltage, reducing frequency, appropriate gas flux got high proportion of sp3 bond ; dlcs prepared by psii contained a good deal of sic, the composition affected its properties ( such as the films hardness ) ; psii method could offer good adhesion to dlcs, but it caused the surface morphology to become asperity
研究結果表明: ( 1 )用全方位離子注入技術能夠制備出類金剛石膜。在全方位離子注入技術中,不同的偏壓、頻率、氣體流量都對薄膜中sp ~ 3鍵比例有所影響,文中對具體的影響進行了分析,發現偏壓增加、頻率降低和適中的氣體流量可以制備出含sp ~ 3鍵較多的類金剛石膜;同時發現用全方位離子注入技術制備的類金剛石膜含有大量的sic成份,這對薄膜的性能(例如硬度)影響很大;用全方位離子注入制備的薄膜其結合力得到增強,但薄膜的表面形貌差。Ea - 7504j is a type of amino molding compound modified by phenol, which is added fiberglass as reinforcement. it is suitable for injection process with good performance, and also for transfer or compression process
本產品是以苯酚改性的三聚氰胺-甲醛樹脂為基體樹脂,以有機纖維增強的改性氨基模塑料,適宜於注塑成型,工藝性能良好同時適用於傳遞模塑成型或壓製成型。Ea - 7502j is a type of amino molding compound modified by phenol, which is added fiberglass as reinforcement. it is suitable for injection process with good performance, and also for transfer or compression process
本產品是以苯酚改性的三聚氰胺-甲醛樹脂為基體樹脂,以有機纖維增強的改性氨基模塑料,適宜於注塑成型,工藝性能良好同時適用於傳遞模塑成型或壓製成型。Some main factors which have influenced the cementing quality of adjustment wells in henan oil region include high pressure water injection wells, large pressure differences inter - zones, and mud property, etc
在河南油區影響調整井固井質量的主要因素有注水井高壓,層間壓差大以及泥漿的性能等。The voltage transformer is fully enclosed structure. the primary and secondary windings and iron core are insulated by epoxy resin. it has a good ability of insulation and moisture proof
本型電壓互感器為全封閉結構。一、二次繞組及鐵芯均澆注在環氧樹脂內,絕緣性能優良,耐潮濕。Abstract : this paper introduces the improving process of outside pour type hydraulic prop. it can reduce labour strength, raise pressure text safety and work efficiency
文摘:介紹了外注式單體液壓支柱試壓頭的改造過程,對其進行改進可以降低勞動強度,提高試壓安全性能和勞動效率。Plastics piping systems. injection - moulded thermoplastics fittings for elastic sealing ring type joints for pressure piping. test method for resistance to a short - term internal pressure without end thrust
塑料管道系統.壓力管道用彈性密封圈型接頭的注模熱塑配件.耐無端推力短暫內壓力性能的試驗方法分享友人