lift of fin 中文意思是什麼
lift of fin
解釋
垂直尾翼側力-
Based on the " fangsheng - i " robot fish of harbin engineering university auv lab, at first the analysis of the relations of pectoral fin ' s attack angle and lift in vertical plane is done in this paper, using the robot fish ' s hydrodynamic results by the panel method ' s, then setting up the motion model in vertical plane is done. finally animation the robot fish ' s motion in horizontal plane is finished
論文以哈爾濱工程大學軍用智能水下機器人國防重點實驗室的「仿生? 」號仿魚機器人為對象，利用面元法計算的仿魚機器人水動力結果，並分析了垂直面內胸鰭的攻角與升力的關系，建立了垂直面內的模型，根據軸變形模擬了仿魚機器人水平面內的直航和偏航。 -
Fin stabilizer is a kind of active stabilizer, which is designed on the principle of torque counteraction. fin stabilizer applied at present is an angle feedback system which calculate the controlling torque through the fin angle. because the relationship between the lift produced by fin and the fin angle is mainly determined by the hydrodynamic experiment, so there are some defects
目前使用的減搖鰭是一個角度反饋系統，它通過鰭的轉角來計算控制力矩，這樣就存在一些不足之處，因為鰭上產生的升力和鰭角的對應關系主要靠鰭模的水動力試驗來求得。 -
The results show that the frame of the grid fin has the greatest effect on the grid fin drag characteristics, reducing the drag levels and enhancing the lift - drag ratio for grid fin may be obtained by selecting appropriate frame cross - section shape and thickness of grid fin
計算結果顯示，格柵翼的幾何結構參數對格柵翼的氣動力特性影響很大，格柵翼的邊框剖面形狀和厚度對格柵翼的阻力影響最大，所以選擇合適的邊框厚度和剖面形狀可以有效地減少格柵翼的阻力，提高陞阻比。 -
Big error exists in the hydrodynamic experiment, especially on dynamic state ; it is more difficult to test the hydrodynamic property of fin stabilizer. so the lift comes from this kind of control method ca n ' t counteract the wave torque perfectly, thereby affecting the stabilizer ' s function
由於鰭的水動力試驗有很大的誤差，特別是在動態條件下鰭的水動力特性測試更是困難，所以這種控制方法產生的鰭升力不能很好地抵消波浪力矩，從而影響了減搖效果。 -
This task is the core constructive item of national " 211 project ". the ultimate result is to equip lift - feedback fin stabilizer experiment equipment in laboratory
本課題來源於國家「 211工程」重點建設項目，最終在實驗室內裝備一臺升力控制減搖鰭實驗裝置。 -
Measure the lift - force of stability fin by using the force transducer between the bearings
軸承負荷法用於鰭軸升力的測量 -
In this paper, in order to find the approaches to reduce the drag levels and enhance the lift - drag ratio for grid fin, the aerodynamic characteristics of the grid fin are calculated with tvd finite volume scheme and wind tunnel tests. according to the complex flow field, a curve - long parameter grid generation technique is applied, and the density of the grid is processed
為適應復雜流場的數值計算，對網格生成方法進行了研究，採用弧長網格生成法進行貼體網格生成，並對網格進行了加密處理，使物面附近網格盡量密些，而在遠場使網格盡量稀疏些。 -
It is necessary to design robust controllers based on the normal plants so that the controlled systems have satisfactory properties by considering the existence of uncertainties. based on lyapunov stability theory, geometry theory for nonlinear systems, dissipative theory and etc, the robust hk control for uncertain nonlinear systems and the reliable h control problem of uncertain nonlinear systems are studied, and the control laws are proposed correspondingly for several typical nonlinear systems in this paper. the robust controller design methods are presented and the proposed method is applied to design the control system of lift feedback fin stabilizer by considering the linear model, nonlinear model and coupled nonlinear model of ship motions
本文研究了不確定非線性系統的魯棒控制問題，以lyapunov穩定性理論、非線性系統幾何理論、耗散理論等為基礎，對非線性系統的魯棒h _控制、非線性系統的魯棒h _可靠控制進行了深入的研究，針對幾類典型非線性系統，提出了相應的魯棒控制方法，對于升力控制減搖鰭系統（本文中簡稱為力控鰭系統） ，考慮船舶運動的線性模型、非線性模型和非線性耦合運動模型，提出了相應的控制方法。 -
Lift fin stabilizer is a new kind of perfect stabilizer, whose control theory is improved on the basis of classical one
升力控制減搖鰭是一種全新的減搖鰭，它從控制原理上對傳統的減搖鰭作了改進，具有很多的優點。
分享友人