船體彎矩 的英文怎麼說
中文拼音 [chuántǐwānjǔ]
船體彎矩
英文
hull bending moment- 船 : 名詞1. (水上的運輸工具, 船舶的通稱) boat; ship; vessels 2. (姓氏) a surname
- 體 : 體構詞成分。
- 彎 : Ⅰ形容詞(彎曲) curved; bent; crooked; flexuous; tortuous Ⅱ動詞1 (使彎曲) curved; bend; flex 2 ...
- 矩 : 名詞1. (畫直角或正方形、矩形用的曲尺) carpenter's square; square2. (法度; 規則) rules; regulations 3. [物理學] moment
- 船體 : the body of a ship; hull; body; bottom
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Midship section design is a vital step among ship ' s design. this section endures most bending load, and materializes the structure of the whole ship
船舯所受彎矩最大,是全船結構主要矛盾之所在,組成了船體結構的全局性構想,因而是船舶設計的重中之重。In the full of research, the thesis constructed the dynamic equations of the simplified model, then programmed and computed the feedback gains using lqr method. moreover, the thesis plotted pictures of displacement, velocity, acceleration, bend and shearing force of ship ' s head and middle part in the condition of using cable and not using cable
在研究工作中,首先對船舶的簡化模型建立了動力學方程,然後採用線性二次型最優控制方法,編寫程序並計算出船體垂向振動固有頻率和最優反饋矩陣,得到控制前後船艏以及船舯部的位移、速度、加速度、彎矩和剪力歷程圖。From the study results it is showed that turret hole position near the forward of the midship has less effect to the ship girder strength and it is more reasonable using probabilty statistics method to estimate the extreme value of wave bending moment, by which the first approximate value of hull midship section modulus can be determined
研究結果表明:轉塔開孔位置在舯前附近對船體總強度影響不大;波浪彎矩極值用概率統計方法估算更為合理;船體結構剖面模數的第一近似值可用波浪彎矩設計極值等來確定。Then, a step - by - step increase of vertical bending curvature is applied to the hull girder assuming that the plane cross section remains plane. at each incremental step, the stress of the cross section is evaluated using the average stress - strain curves of the elements as well as the incremental bending moment due to the curvature increment
船體總縱極限彎矩的計算,由於要計及材料的和幾何的非線性因素而變得十分復雜,必須用增量的方法逐步計算,獲得完整的彎矩?曲率曲線后,才能得到總縱極限彎矩值。Abstract : in this paper, the ship structure is analyzed by using 3d overall structure finite element method and the longitudinal strength is calculated when the hydro - static bending moment, wave bending moment, horizontal bending moment and torsion moment are considered. we compare the calculating result with the one based on the theory of thin - walled box girders and discuss the future of application of the two methods
文摘:本文對3800箱集裝箱船進行了整船有限元分析,計算了在設計靜水彎矩、波浪彎矩、水平彎矩和扭矩作用下的船體總縱強度,並與基於薄壁梁扭轉理論的總縱強度計算結果進行了比較,對兩種方法的應用前景作出評論。Then comparative study of bending moments and shearing forces is performed with the results calculated by traditional design loads method for the same assumption and the changes of wave loads are discussed in this paper
在一定假定條件下,將切片法計算的波浪彎矩與剪力同靜置法計算結果進行了比較,分析了破損后的載荷變化,為船體總縱剩餘強度研究提供依據。For this purpose, a simple method was proposed to simulate the progressive collapse behavior of a ship ' s hull girder subjected to longitudinal bending. in this method the cross section of hull girder is divided into small elements composed of a stififener and attached plating
傳統上,船體總縱強度是通過比較許用應力和在名義垂向波浪彎矩作用下甲板或船底上距中和軸最遠點的彈性應力來進行評估的。A time - variant reliability formulation is presented in this paper to account for the effects of fatigue, corrosion and maintenance actions on the first yield reliability of midship section modulus. a probabilistic model for long - term distribution of wave - induced fatigue stress range is established. for the purpose of obtaining the performance of structure that stands random fatigue load, the concept of stress parameter and equivalent stress range are introduced
船舶在由波浪彎矩引起的交變應力作用下,船體構件焊接點處的微小裂紋逐漸擴展;同時,隨著船齡的增加,眾多結構構件遭受腐蝕的作用;從而使船體梁剖面模數減小,船體梁承載能力衰減,船舶結構的安全性將受到相當大的影響。Then, a step - by - step increase of vertical curvature is applied to the hull girder assuming that the plane cross section remains plane. at each incremental step, the stress of the cross section is evaluated using the average stress - strain curves of the elements as well as the incremental bending moment due to the curvature increment. performing sample calculations on existing girder models tests under pure bending, the rationality of the proposed method was examined
假設船體橫向框架材足夠強,因而板架的整體破壞不會發生;基於梁?柱理論、理想彈塑性假設、平面假設,建立了拉伸和壓縮加筋板單元的平均應力?應變關系曲線,應用船體結構總縱極限強度的簡化逐步破壞分析方法計算船體總縱極限彎矩,並據此開發了計算程序sus 。Abstract : the dynamic characteristics of unsymmetric ship structure with consideration of bending - bending - twisting coupled vibration and shear deformation are investigated, and the transfer matrices and a computing example are presented
文摘:分析不對稱船體結構的雙向橫彎曲和聖維南扭轉耦合振動並考慮了剪切變形影響,給出了傳遞矩陣及算例Firstly, it needs to separate the girder hull into many elements - pulled one and pushed one. secondly, when the ship is in hogging or sagging, you should assume one curvature value so you can get the moment value of every element at this curvature. and then you may add up all the moment of every element
當船體梁在中垂或中拱狀態下時,假定一個初始曲率,根據各個單元對瞬時彈性中和軸彎矩的貢獻,累加得到相對于這個曲率的總彎矩,然後判斷彎矩是否達到極值,如未達到,則增加曲率,重復上述過程,直到彎矩為極值為止。分享友人