靜失穩 的英文怎麼說
中文拼音 [jìngshīwěn]
靜失穩
英文
static buckling-
A statically indeterminate structure will usually sustain loads in excess of that at first yield before instability occurs.
超靜定結構通常在失穩之前,既使超過第一個屈服點還能承受載荷。The interactions between particles were discussed based on dlvo and edlvo theories. experiment results show the effect of the ph on the dispersion is due to the repulsion interactions of electrical double layer ; and addition suitable inorganic dispersant or organic macromolecule dispersant results in improvement the stabilization of the dispersion. the main action of the inorganic dispersants is to increase the repulsion interactions of electrical double layer and the main action of organic macromolecule dispersant is to increase hydration shell and steric hindrance
研究表明: ph對顆粒分散的影響主要體現在對顆粒間雙電層靜電排斥力的改變;添加合適分散劑可以改變顆粒在水中的分散性;無機電解質的分散機制主要是增加顆粒表面的雙電層靜電排斥作用能,而高分子分散劑的分散機制主要是增加顆粒的水化膜排斥能和位阻排斥能;復合分散劑的分散效果要優于單一分散劑;提出了用經時損失性來評價分散穩定性。Critical voltage of thin beam drived by electrostatic force
靜電力作用下的微梁失穩臨界電壓分析With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly
四川電網的二灘水電站和500kv輸變電系統投入運行后,由於二灘水電站的大量電力遠距離輸送至負荷中心,迫使負荷中心的火電機組在豐水期大量停機,使負荷中心失去電壓支撐,大大降低了電網的電壓穩定水平;同時,因為四川電網中的無功補償裝置全為靜態無功補償電容器(或電抗器) ,這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用,而在電網出現事故時,不但不能起到電壓支撐作用,反而會促使電網電壓崩潰事故的發生。The work on seasonal dynamics of litter input and decomposition and the relationship between them and environmental factors was studied through the method of harvest and weight loss. soil respiration rate was measured by alkali - absorption method and the contribution from soil microorganism respiration and from root respiration was determined through trendline method of linear regression between soil respiration rate and belowground biomass. mathematical models were established between the seasonal dynamics of main components of soil total respiration including soil respiration, root respiration, soil microorganism respiration, litter respiration and environmental factors
應用收獲法和重量損失法對枯枝落葉輸入與分解的季節動態及其與環境因子的關系進行了研究;應用靜態氣室法測定了土壤總呼吸和凋落物呼吸,應用土壤呼吸量與地下生物量線性回歸趨勢線法測定了土壤微生物呼吸及根呼吸的貢獻量,運用相關分析法建立了土壤總呼吸、根呼吸、土壤微生物呼吸及其凋落物呼吸季節動態與環境因子之間的數學模型;應用灰色分析比較了兩群落土壤呼吸季節動態產生差異的原因;應用干重換演算法對土壤微生物能量積累量的季節動態進行了測定,建立了土壤微生物能量積累量與環境因子的數學模型;應用系統分析方法,利用分室模型,對兩群落枯枝落葉與微生物之間的能量流動進行了定量測定和穩定性分析。The second one discusses the rules of dynamic instability regions of serial system with different static load factor and different column cross - section size
算例二討論了隨靜力載荷因子及柱截面的不同,串聯體系動力失穩區間的變化規律。Meanwhile, in this dissertation the measure of urgent control of power system against occurs of the voltage instability was presented
此外,論文還研討了一些關于防止系統靜態失穩的緊急控制方案。The paper also investigates the influence of stalling of induction motor to pv curves and voltage static stability, and studies the method for selecting the critical point
同時分析了感應電動機失穩對pv曲線和靜態電壓穩定的影響,並研究了電壓穩定臨界點選擇的方法。The patient was begun on intravenous heparin, and his neurologic status remained stable with mild improvement in aphasia
治療首先靜脈滴注肝磷脂,患者的神經系統癥狀穩定,失語有輕微好轉。In the stability analysis were used typical longitudinal and lateral - direction stability index, while in the control analysis were estimated the control power requirements for trim, stabilization and maneuverability
穩定性分析包括靜穩定性和失速偏離判據以及模態特性分析;操縱性分析包括考慮平衡、增穩和機動性余量三方面的要求。Too early switch can not present the advantage of fuzzy controller and even lead to integral saturation, while too late switch can not turn into pid control because of the static state error of fuzzy - ped control. at last, the choice principle of the threshold is analyzed and simulated
當過早地切換會體現不出模糊控制的優點而使超調量增大,甚至造成積分飽和現象使系統失穩;當過遲切換,如果模糊控制器有較大的靜差,則有可能根本無法進入pid控制。What could be more valuable than the serene and peaceful atmosphere in the center ? we have this paradise for us to hold grand group meditations on the holidays and to pray for the stability of world s situation and for world peace. this kind of brotherhood in which we support and help each other is the affinity most worthy for us to cherish in this world
雖然許多建築物都消失無蹤,但同修已了解世事無常的功課,道場內恬靜安詳的氣氛,才是人間最可貴的資產,有一處世外桃源可供假日大共修,祈禱世局安穩世界和平,這種互相提攜扶持的手足親情,才是人間最值得珍惜的緣分。A new approach to truss topology optimization, i. e topology group concept, is introduced. it may consider many kinds of constraint, including stress, euler buckling, static displacement and frequency constraints
提出了桁架結構拓撲優化設計的一種新方法?拓撲組方法,可同時考慮應力,失穩,靜動位移響應以及固頻約束。But the traditional static design method is based on statics and seldom contains guidelines for incorporating the dynamic behavior of the moving belt. large safety factors are employed to accommodate most dynamic stresses in the belt. this can not only increase total cost but also give rise to system instability and higher dynamic stresses that can damage the belt, drums, idlers, bearings and other parts of the conveyor
在高速情況下,帶式輸送機存在的主要問題之一是起制動過程中輸送帶的動張力問題,而傳統的靜態設計方法將輸送帶視作剛體,並且在靜力學基礎上按靜止或勻速運行狀態對輸送機系統進行受力分析和參數設計,將動張力以一定系數計入,用加大安全系數方法提高設計可靠性,這不僅會使帶式輸送機的成本提高,還可能引發起制動過程中較大的輸送帶動應力及運行過程中的不穩定性,從而導致輸送帶接頭的失效及滾筒、托輥、軸承乃至其它部件的損壞。Relatively reliable suction goods drop should pass the explore below a few diving in share price, be far from all valence 3 above, float of short that day line prepares this position to already did not wish again shipment, even if cast sheet greatly to also be done not have new low, banker also discovers the chip prediction of a person ' s luck in a given year that makes small conference cause certain level to go up again, so this position should be in the relatively reliable suction in washing dish of movement goods is nodded, even if won ' t turn over a body that day up, also be that day area of an opposite low, calm view of ok and easy ground its change, enjoy the short poor profit in washing pan zhen to swing
較為穩妥的吸貨點應在股價經過幾波跳水下探,遠離均價3以上,此位置當日短線浮籌已不願再出貨,即使是大的拋單也沒新低,莊家也發現再打低會造成一定程度上的籌碼流失,所以這個位置應該是在洗盤動作中較為穩妥的吸貨點,就算當日不會反身向上,也是當日一個相對低價區,可以從容地靜觀其變,享受在洗盤震蕩中的短差利潤。Forming the strategy of control against the voltage instability would relays on the principles of the preventive control and the informations obtained from the advancing analysis program. so that, these measures against occurs of the voltage instability had more objective and more effective effect
防止系統發生靜態失穩的預防控制策略將依據預防控制的原理和穩定性預測分析得到的相關信息,從而使得這些控制措施有的放矢,對防止系統失穩起到事半功倍的作用。In this dissertation, three contents are refered : ( 1 ) in this paper, we analyze the characteristics of seismic disaster of grottoes and discuss the calculation methods of four reinforcement conditions respectively. meanwhile, though the discussing probe into seismic stability of the reinforcement
本文的研究內容主要涉及以下三個方面: ( 1 )本文分析了石窟的震害特徵和所在邊坡的失穩影響因素,採用靜態理論分別對沒加固的、擋墻加固的、錨桿加固的石窟巖體進行了抗震性能分析,並且對不同加固類型石窟的抗震穩定性分析方法進行了探討。After load fiow study in each sample, distance to static voltage stability boundary is calculated. when static voltage instability will occur, load curtailment with optimum location and amount is executed
在每個抽樣樣本執行潮流計算后,判斷系統距離靜態電壓失穩的距離,當可能發生靜態電壓失穩時,執行切負荷控制措施,尋找最優切負荷位置及切負荷量。The current research on the steady - state operation of grid - connected wind farms is introduced, including the power flow calculation models for power systems which contain wind farms, the analytic methods and models for the static voltage stability of wind farms, the voltage static stability indices and measures to control the voltage stability, the factors influencing the maximum power injection of wind farms and main relevant analytic methods, indices for wind farm scale, and the capacity credit
摘要介紹了風力發電並網的穩態運行的研究現狀,包括含風電場的電力系統潮流計算及模型,風電場的靜態電壓穩定性的分析方法與模型,電壓靜態穩定性指標和控制電壓失穩措施,風力發電最大注入功率的影響因素及主要分析方法,衡量發電規模的指標及容量可信度等。The impact of load characteristics and on load tap changer on static voltage stability is analyzed with the methods based on v - q and v - p curves, and the phenomenon of voltage stability voltage instability and voltage collapse are studied with steady - state simulation. finally the thesis presents the essential explanations of both voltage stability and the mechanism of voltage collapse. xu yonghua ( electrical engineering ) directed by prof
通過電壓?功率曲線分析法定性分析了不同負荷特性和有載調壓變壓器對靜態電壓穩定性的影響,並通過靜態模擬法從物理現象上研究了電壓失穩和電壓崩潰現象,最後針對這些現象給出了關于電壓穩定、以及電壓崩潰的本質解釋。分享友人