U - undulatory 中文 - EN166

undulatory adj.波動的；起伏的；波浪形的。 the undula...

unduly
Then this dissertation discusses the flagellum - like oscillating propulsion , describes the types and characteristic of fish in details , analyses the configuration and force of fish and the undulatory propulsion mechanism , builds up the kinematic model of fish . and this dissertation systematically summarizes up the reference and suggestion to swimming micro robot ' s design and study by the aquatic animal for the first time . this dissertation discusses how to design the swimming micro robot which is based on flexible hinge and driven by pzt 本文闡述了鞭毛類水生生物的推進機理，重點闡述了魚類推進模式的分類及特點、魚的形態描述及受力分析、魚類波狀推進機理，分析了魚類游動過程中魚體和尾鰭的運動，建立了月牙尾推進模式穩態游動的運動學模型，并且在國內首次系統總結了水生動物對泳動微機器人設計加工和理論研究的借鑒和啟發作用。
In order to accurately understand & realize the electrical elasticity coefficient and its variety rule ， this paper calculate annual electrical elasticity coefficient of yunnan province and china since 1950 especially nearly 30 years ， analysis the undulatory property 、 limitation of time and the factors which affect the electrical elasticity coefficient ， synthetically evaluate the load forecast method based on electrical elasticity coefficient ， and propose the value of electrical elasticity coefficient 為了正確全面理解和認識電力彈性系數及其變化規律，本文對1950年以來特別是近30年來全國和云南省逐年電力彈性系數進行了計算，對電力彈性系數的波動性、時段局限性以及影響電力彈性系數變化的因素做了深入分析，對用電力彈性系數預測電力需求的方法做了綜合評價，并對電力彈性系數取值提出了建議。
Based on bionic experiments in gymnarchus niloticus and rhinecantbus aculeatus , this paper presents a parameterized description of undulatory dorsal / median fin propulsion modes . by referring to large - amplitude elongated body theory and computational fluid dynamics simulation , this paper also provides an explanation of the external morphological and kinematic phenomena that are closely related to propulsion characteristics 本文以“尼羅河魔鬼”和“鴛鴦炮彈”為仿生實驗對象,建立背鰭/背臀鰭波動推進模式的參數化描述,對與推進性能密切相關的若干形態學及運動學特征進行研究。
Fish undulatory mechanism is deeply investigated , besides the kind and specialty of fish swimming mode , fish morphologic description and force - acting analysis . in addition , the dissertation reviews the current situation , fundamental characterization and application forehead for underwater biomimetic robot , so the above contents bring great reference for micro mobile robot in liquid 主要闡述了魚類推進模式的分類及特點、魚的形態描述及受力分析，并重點論述了魚類波狀推進機制，并對當前仿生魚型水下機器人的研究現狀、基本特性和應用前景進行了分析。
Since these theoretical analyses are based on inviscid potential flow theory , theoretical calculation and computational simulation may complement each other . the hydrodynamics and undulating propulsion of specimens were studied using three dimensional computational fluid dynamics ( cfd ) modeling . the cfd analysis using kinematic model of undulatory dorsal / median fin draws a series of conclusions , which include that the body drag increases significantly with the lateral body oscillation ; the body drag is minimum while the start point of 計算結果表明游動過程中的形體阻力隨側向周期性擺動而增大;當背鰭前端位于身體側向最寬處時,形體阻力具有局部最小值,結論與實驗觀測結果相吻合;在實驗觀測的典型運動參數下,波動面的運動方程中的非對稱因素的出現使推進力增大約1 . 10倍。
Finally , the values of kinematic parameters in typical swimming are estimated for theoretical calculation and computational simulation . based on the kinematic formulation , this paper applies large - amplitude elongated body theory to propulsive performance of undulatory dorsal / median fins and establishes a set of equations for estimation of the propulsive force and the propeller efficiency . the calculations based on experimental data coincide with blake ’ s result in 1980 從波動運動的參數方程出發,本文基于大擺幅伸長體理論對背鰭/背臀鰭波動模式的推進性能進行了分析,推導推進力和推進效率的計算公式,利用實驗觀測典型運動參數對仿生對象的推進力和推進效率進行了理論估算,結果與blake的計算結果相吻合,從而驗證了所建運動學模型的有效性。
The undulatory dorsal / median fin propulsion modes as represented by amiiform and balistiform fish are of great significance for bionic propulsion research , particularly for the design and control of underwater vehicles , which are generally employed at slow speeds , offering greater maneuverability and better propulsive efficiency 以弓鰭目和鱗?科魚類為代表的背鰭/背臀鰭波動推進模式對于水下仿生推進器研制具有相當重要的參考價值。
First , an experimental apparatus for undulatory dorsal / median fin propulsion modes is established . based on morphological and kinematic data of the body and the dorsal / median fins of specimens , the analysis shows that the slender body is well streamlined , symmetrical 本文的實驗觀測首先建立了背鰭/背臀鰭波動推進研究的生物實驗裝置,進行仿生對象形態學和運動學觀測,提取了仿生對象的形態學和運動學特征。
The locomotor hypotheses about the kinematics of undulatory swimming are experimentally tested , while the parameters describing wave form are discussed with respect to some constrained conditions that must be satisfied during undulatory swimming 隨后定義了表征形態和運動特征的參數化運動描述,結合方程中參數的物理含義,討論可能存在的約束以及參數的一些典型性質。
The undulatory biomimetic propulsor is a new - style underwater propulsor which is basedontheswimmingmodeofgymnarchusniloticus . itachievesitsforwardorbackwardmovementby undulatory controlof the flexible fin 波動仿生推進器是一種模仿“尼羅河魔鬼”的游動方式設計的新型水下推進裝置。
The undulatory control of the flexible fin is one of thekey techniques for the research of the undulatory biomimetic propulsor , and it is the base ofpropulsion 柔性長鰭的波動控制技術是波動仿生推進器研究的關鍵技術之一,它是實現柔性長鰭波動推進的基礎。
To realize the undulatory control of the flexible fin , a locomotory model is analyzed and a distributed control structure is designed 針對柔性長鰭特有的波動控制問題，本文分析了柔性長鰭的運動模型，并設計了一種分布式控制系統結構。
It combines the fuzzy controller and the self - adaptive unit , achieving the undulatory control of the flexible fin in uncertain environments 它將模糊控制器和自適應單元相結合，解決了不確定環境下柔性長鰭的波動控制問題。
The undulatory biomimetic propulsor is a new underwater propulsor which emulates the swimming mode of gymnarchus niloticus 摘要波動仿生推進器是以“尼羅河魔鬼”為仿生對象設計的新型水下推進裝置。
It can move forward , backward or brake depending on the undulatory motion of the flexible fin 它依靠柔性長鰭的波動運動來實現載體的前進、后退、制動等各種機動動作。
The main contents of the paper as follows : chapter 1 : undulatory theory of real estate economy 本文研究的主要內容如下:第一章:房地產經濟波動理論。
Ceramic components for electrical purposes ; mounting places for insulators ; undulatory profile 電工陶瓷件.絕緣子安裝部位.皺紋面