gravity curve 中文意思是什麼
gravity curve
解釋
拋物曲線-
The program includes the infrasonic signal data acquisition of three channels, 3 - d dynamic spectrum analysis, correlation analysis of 3 channel infrasonic signals, the calculation of wave direction, the wave speed, the spectrum analysis at any length and a real - time infrasonic gravity wave pressure - time ( p - t ) curve
本程序支持3路次聲波傳感器信號的數據採集、動態譜分析及次聲信號的相關分析、能計算波源的方位角、波速以及任意時間段的譜分析，並實時給出次聲重力波的壓力?時間曲線（即p ? t曲線） 。 -
In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll
研究表明：在某些頻率范圍內相關水動力系數基本不隨吃水變化，只有超過某一頻率后水動力系數的值才會出現差異；在橫搖方向，水動力系數並沒有隨著吃水的變化發生規則變化，而是出現了波動現象；近船首剖面的水動力系數計算表明，水動力系數的波動非常大，並遠遠偏離了平均位置的水動力系數值，值的變化速率也不盡相同，總的看來，上振幅曲線曲率較大，變化較快，下振幅曲線曲率較小，變化較慢；外飄力和波面運動的速度的平方項有關，導致其振動頻率和相應運動方向的頻率不同；外飄力使升沉向下運動的幅值減小；船速對三個計算量的峰值影響甚微，但對振動頻率有明顯影響；波幅對船舶運動的影響是明顯的，船舶運動的幅值基本上和波幅成線性關系。 -
When cable interacted under the load both of gravity and inertia force, derivative equation of cable ' s defection curve in space is deduced to study cable ' s rigidity movement, and flexible deformation is also determined by finite element method
分析了懸索上各離散點的位置、速度、加速度和慣性力。推導了在重力和慣性力共同作用下懸索的空間撓曲線微分方程，並研究了懸索的剛體位移和彈性變形。 -
The interaction mechanism of atomic force between tip and sample was unveiled more clearly with the analysis of the change regularity of force - distance curve. the theoretical research about the light pressure of laser and the gravity exerting on the micro - cantilever was first conducted in this paper : setting up the interacting model and formula of the light pressure, investigating the effects of these factors on the interaction mechanism of atomic force and the performance of afm, conceiving a method to remove these effects and so on. all of these were the theoretical foundation of developing the new atomic force microscopy and the new type of horizontal afm system
本文在全面分析掃描探針顯微鏡（ spm ）技術，特別是afm技術的國內外發展歷史、現狀及存在的主要問題的基礎上，進一步揭示了afm的原子力作用機理，著重分析了力?距離曲線的變化規律；對作用在微懸臂上的光壓力和微懸臂本身的重力進行了系統的理論研究和計算分析，建立了激光束對afm微懸臂的光壓作用模型及計算公式，考察了這些因素對原子力作用機理及afm性能的影響；提出克服或消除這些影響的理論構想，為發展新的afm技術、研製新型afm系統提供了重要的理論依據。
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