縱搖運動 的英文怎麼說
中文拼音 [zōngyáoyùndòng]
縱搖運動
英文
pitching motion-
The strip method was applied to the motion prediction of the monohull. the time range solutions of heave and pitch were obtained in the condition of head sea to provide the primary data on panoramic simulation
本文利用切片法對0371g艇加裝縱向組合減搖附體前後的運動進行預報，取得了迎浪狀態下升沉和縱搖的時歷解，為視景模擬提供原始數據。On the basis of cybernetics through forecast roll and pitch of a ship and by adjusting the object ' s space position and keep its horizontal state without limit of actual sea state according to the control rules with the predictive value of ship ' s roll angle and pitch angle
應用控制理論通過預測隨機海浪擾動下船舶的橫搖、縱搖運動的搖角值，按照所設計的控制規律實現在不受實際海況限制的情況下調整船上物體的空間位置，使此物體保持水平狀態的目的。The theoretical calculation and the model experimental result both have confirmed that the built - up stabilizing appendage is able to reduce pitching n heaving motions and especially bow acceleration considerably
理論計算和模型試驗結果均證明了組合減搖附體能夠減小船的縱搖運動、升沉運動，尤其是大幅度降低首部加速度。This paper applies ittc single - parameter ocean wave spectrum to simulate a random long - crested ocean wave according to statistics superposition theory and real - time simulate disturbance on the ship by random wave. it simulates roll and pitch of the ship in random wave in the time domain and gains roll angle ( t ) and pitch angle ( t ) signal of ship rolling movement
本文根據統計疊加理論，採用ittc單參數標準海浪譜模擬模擬實際的長峰波隨機海浪，進而實時模擬長峰波隨機海浪對船舶的隨機擾動，對船舶在海浪中的橫搖和縱搖運動進行了時域模擬，得到船舶搖蕩運動的橫搖角信號（ t ）和縱搖角信號（ t ） 。For the dynamic process of ship rolling movement, this paper analyses its dynamic date with time series analysis method and brings up this system ' s the most excellent autoregressive model ( ar model ) according to least aic criterion ( akaile, information criterion ). it reveals the regular pattern of ship rolling movement and forecasts the future value of roll angle and pitch angle, then transforms it to adjusting value of object and adjusting it according to appropriate control rules
對于船舶搖蕩運動這一動態過程，採用時間序列分析的方法，建立系統的自回歸模型（ ar模型） ，並根據最小aic信息量判定準則保證建立的系統模型為最優化模型。利用參數模型的方式對船舶橫搖、縱搖運動的動態數據進行分析處理，揭示船舶搖蕩運動的規律，預測船舶橫搖角、縱搖角的未來值。The results are of more precision by adopting the latest achievements. conclusions are drawn by a large number calculation. 1. to large extent, the magnitudes of sway and yaw are affected by the depth of water, so is that of anchor chain tension ; the magnitudes of sway and yaw are smaller in the shallows than in the deep, so is that of anchor chain tension ; 2. to small extent, the magnitude of heave and pitch is affected by the depth of water
該數學模型突破了以往數學模型的局限性，不僅考慮了縱蕩、橫蕩、首搖運動，還考慮了垂蕩、縱搖運動；在該數學模型中還考慮了淺水的影響，對模型中受淺水影響較大的部分作了淺水修正；在計算各外力時，採用最新研究成果，使計算結果更加準確；通過大量計算得出一些很有意義的結論： 1Using 2 - d strip method and the high - speed slender body theory, the heaving motion responses in regular wave of ship with combined appendage are computed. the results are compared with the results of naked ship hull, and the anti - pitching effect of combined appendage is validated. a method of optimizing the seakeeping is provided from the aspect of the ship hull
因此本文針對船舶耐波性能的優化，提出了一種減縱搖組合附體，將半潛艏和艏鰭安裝在常規單體船上，初步闡述了半潛艏和艏鰭的水動力作用機理，並按照二維切片法和高速細長體理論計算了加裝組合附體后，船舶在規則波中的垂向穩態運動響應，與裸船體的結果進行了比較，驗證組合附體的減搖效果，從船體本身出發提供了?種優化船舶耐波性的方法； 3In the end the predicting model is used in watercraft motion modeling and predicting, and the auhor analyzes the result of simulating. the result indicates that this ap $ j $ ifgx9 @ 1 % & itx means is reasonable and feasible and gains the satsfactory pmpose
最後將此模型應用於艦船縱搖運動的極短期預報，並從統計理論的角度對模擬結果進行了分析，分析結果表明該方法是合理可行的，確實提高了預報精度，加長了預報時間。The self - tuning fuzzy control algorithm including a back - propagation - based fuzzy controller and the gradient descent method is applied to reduce the pitch motion of the swath ship with control stabilizing fins
控制模式為一自調模糊控制，包括應用一類神經倒傳遞觀念的模糊控制器及梯度下降法來減少縱搖運動。The simulation system design of 3 - d panorama of ship motion will be discussed in this paper. the technical research on the generation of boday view animation was carried out, and the results of motion prediction were verified comparied with build - up stabilizing appendage of 0371g monohull or not
本文將探討艦船三維視景模擬系統的設計，對體視動畫的自動生成作一定技術性探討，並用0371g艇加裝縱向組合減搖附體前後的運動預報結果進行對比驗證。Chapter 2 exposits the principle of the airborne isar imaging of ship targets in detail using the concept of image projection plan and effective rotating vector. and some imaging results under every ship sway ( roll, pitch and yaw ) are presented
論文第二章藉助成像投影面和有效旋轉矢量的概念，詳細闡述了機載isar對艦船成像的機理，並分別對艦船橫搖、縱搖、偏航運動成像進行了模擬。The airborne isar imaging of ship target depends on the ship ’ s rotation relative to the radar line of sight ( rlos ). this rotation has two sources : one originates from the relative movement between the radar and the ship. the other comes from the ship sway ( roll, pitch and yaw )
機載isar對艦船成像依靠艦船與雷達視線（ rlos ）之間的相對轉動，它由飛機與艦船航行引起的相對運動和海浪作用下艦船自身搖擺（橫搖、縱搖、偏航）產生的轉動組成。分享友人