variable boundary中文是什么意思

發(fā)音:

中文翻譯
造句

[數(shù)] 可變邊界

boundary variable 邊緣變量
variable-boundary layer 變界層
boundary n. 邊界，疆界，限界 (between);(球場)邊線；界標(biāo)；界限，范圍，分野。 aboundary dispute 邊界糾紛。 the boundary between Canada and the United States 美加國界。 boundaries on all sides 四方輻輳之所，四通八達(dá)。
variable adj. 1.易變的，變化無常的，無定的 (opp. constant, steady)。 2.可變的，能變的；變換的。 3.【數(shù)學(xué)】變量的；【天文學(xué)】變光的；【生物學(xué)】變異的。 Prices are variable according to the exchanges. 物價跟著匯率變動。 a man of variable character 反復(fù)無常的人。 a rod of variable length (伸縮)如意棒。 a word of variable construction 可以作種種解釋的詞。 variable capital 可變資本。 a variable budget 臨時預(yù)算。 n. 1.易變的東西。 2.【數(shù)學(xué)】變量，變數(shù)，變項，變元 (opp. constant)；【天文學(xué)】變星 (＝variable star)；【航?！?方向不定的)變風(fēng)，不定風(fēng) (opp. trade wind); 〔pl.〕 (貿(mào)易風(fēng)帶中的)變風(fēng)帶。 adv. -ably ,-ness n.
boundary mark， boundary point 界址點
hidden variable implicit variable 隱變量
logic variable logical variable 邏輯變量
a boundary revision 邊界的修正
a cut to the boundary 切至邊線的一擊
acceleration boundary 加速度邊界
acceptance boundary 接收范圍
accessible boundary 可達(dá)邊界
accretionary boundary 增生邊界
acquitted boundary 弱透水邊界
address boundary 地址界
administrative boundary 行政區(qū)劃界
ageing boundary 老化界限
aging boundary 老化界限
air boundary 空氣邊界
airspace boundary 空域邊界
anatomical boundary 解剖介標(biāo)
antecednt boundary 先定境界
antiphase boundary 反相邊界; 反相界
approximate boundary 概略界線
aquifer boundary 含水層邊界

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例句與用法

variable boundary layer solution is applied to eliminate chattering on the sliding surface and pi speed identifier of mras is used to replace traditional speed sensor to monitor the speed
應(yīng)用可變邊界層法削弱滑模面上的抖振，用模型參考自適應(yīng)速度辨識器取代傳統(tǒng)速度傳感器監(jiān)測電機(jī)速度。
Simulation and experimental results show that the effect of variable boundary layer solution in eliminating chattering is better than the equal near rate control law, and the robustness against parameter change of induction motor is improved and the static and dynamic performance is desirable
通過仿真表明：可變邊界層法削弱抖振效果優(yōu)于等速趨近率法，系統(tǒng)在參數(shù)變化情況下能表現(xiàn)出較強(qiáng)的魯棒性，改善了電機(jī)的動態(tài)和靜態(tài)性能。
The dissertation refers to comparatively full literatures in the field of vsc, and the development history and characteristics of vsc are summarized, and the elementary concepts, elementary definitions, elementary properties, elementary principles and design methods are particularly introduced, and the causes of the chattering phenomenon are systematically analysed, and the study status of the chattering phenomenon and the main methods to eliminate the chattering are elaborated . for the deficiencies of traditionary methods, three improved methods are developed, which are improved exponent reaching law solution, variable boundary layer solution and the solution by adding an auxiliary continuous control term . for uncertain linear systems, an adaptive fuzzy integral variable structure control stategy ( afivsc ) is put forward to eliminate the chattering around the sliding plane, which introduces fuzzy logic to soften the non-linear discontinuous sig nal in the control variable and utilizes adaptive theory to adjust output membership function according to how much the uncertainty of the system is
比較全面地查閱了關(guān)于變結(jié)構(gòu)控制理論的文獻(xiàn)，總結(jié)了滑模變結(jié)構(gòu)控制的發(fā)展歷史和特點，詳細(xì)介紹了變結(jié)構(gòu)控制的基本概念、基本定義、基本性質(zhì)、基本原理以及設(shè)計方法；系統(tǒng)分析了變結(jié)構(gòu)控制系統(tǒng)抖振產(chǎn)生的機(jī)理，并闡述了國內(nèi)外目前對抖振問題的研究現(xiàn)狀以及消除抖振的主要方法；針對傳統(tǒng)抑制和消除抖振方法的不足，改進(jìn)了傳統(tǒng)方法，得到了三種新的消除抖振的方法??即改進(jìn)的指數(shù)趨近律法、可變邊界層法和附加連續(xù)項法；針對不確定性線性系統(tǒng)，在變結(jié)構(gòu)控制策略中引入模糊邏輯和自適應(yīng)理論來消除滑動平面上的抖振，提出了一種自適應(yīng)模糊積分變結(jié)構(gòu)控制方案(afivsc)，利用模糊邏輯來柔化控制量中非線性不連續(xù)部分，采用自適應(yīng)理論，根據(jù)系統(tǒng)不確定性大小在線調(diào)整模糊輸出量的隸屬函數(shù)，另外，鑒于模糊控制本質(zhì)上是有靜差的，所以本文選擇了帶積分項的切換函數(shù)，由于積分項的存在使系統(tǒng)較正為無靜差系統(tǒng)。

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