hull girder 中文意思是什麼
hull girder
解釋
船體梁-
The plating in ships is generally subjected to combined in - plane and lateral pressure loads. in - plane loads include biaxial compression / tension and in - plane bending and edge shear, which are mainly induced by overall hull girder bending and / or torsion of the vessel. lateral pressure loads are due to water pressure and cargo
面內載荷分為軸向壓應力或拉應力、邊緣剪切應力以及面內軸向彎曲應力。實際的船舶結構中面內載荷通常由船體梁的總縱彎曲或者船體梁的扭轉引起。側向壓應力則由水壓力和貨物壓力引起。 -
The reliability analysis of ultimate strength of fpso hull girder under towing condition
的船體梁極限強度可靠性分析 -
The ship ' s hull is a thin - walled box girder structure composed of stiffened panels. the overall failure of a ship hull girder is normally governed by buckling and plastic collapse of the deck, bottom, or sometimes the side shell stiffened panels. therefore, the analysis of buckling and ultimate strength of ship panels in deck, boltom, and side shells is very important and necessary for the safety assessment of ship structure. in stiffened panels, local buckling and collapse of plating between stiffeners is a basic failure mode, and thus it would also very important to evaluate the buckling and ultimate strength interaction of plate elements under combined loads
船體梁的總體失效通常取決于甲板、船底板，有時候是舷側加筋板的屈曲和塑性破壞。因此，對于衡量船體結構的安全性而言，對甲板、底板、舷側板進行屈曲和極限強度分析是十分重要且必須的。對于加筋板而言，加強筋間的板格之局部屈曲和失效是最基本的失效模式。 -
With this understanding, this paper chooses the longitudinal strength of hull girder as the disabled mode, by the calculation of fpso, predicts the ultimate strength and effective lifetime of the hull. expected results of examples are obtained, which provide the analysis data for the further risk assessment
在此前提下，本文選擇了船體梁縱向強度失效模式，通過fpso實船計算，分析消化了理想單元法程序軟體，預報了船舶極限強度和安全有效壽命期，並用一階二次矩方法對完整受損船體的結構安全性進行了可靠性的評估，取得了預想的結果，為進一步實施綜合安全評估提供了分析數據。 -
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。 -
The author ' s program can resolve the following problems : ultimate strength of hull girder, the panel ' s curve of stress - strain
作者的程序可解決如下問題：船體梁的極限承載能力以及加筋板單元的平均應力-應變關系曲線。 -
The panels of hull girder may collapse or buckle before it reaches the yield stress. the curve of the stress - strain is usually constituted by stable zone -, non load - shedding zone and load - shedding zone
並且船體截面的組成單元（一般是加筋板單元）在達到材料屈服應力之前還可能發生多種形式的屈曲。 -
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。 -
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。 -
Taking " nanhai fenjin " fpso as example, the analyses show that the loading / unloading courses of the fpso have marked effects on the longitudinal strength of hull girder and safety
通過對15萬噸「南海奮進」號浮式生產儲油船分析表明，該fpso營運過程中裝卸載風險對船體梁縱向強度和安全性具有顯著影響。 -
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 。 -
Study on hull girder strength calculation methods of large naval ship
大型艦船總縱強度計算方法研究 -
It shows that the degradation effects of fatigue and corrosion have important influence on the safety of ship structure, especially after the ship has put into service for 10 years. and the detailed inspection should be done at this time to maintain the reliability level of ship hull girder
計算結果表明：疲勞裂紋和環境腐蝕在船舶服役10年之後對船體梁可靠性有顯著的影響，此時開展詳細的船體結構檢驗對保證船舶營運的安全性具有重要意義。 -
The ferry - borges load combination method is applied to combine the stochastic processes of stillwater and wave bending moments, and the failure of ship hull girder occurs when the combined value of stillwater and wave bending moments exceeds the first yield bending moment
另一方面，船舶在服役期內要定期接受檢驗，一旦發現船體構件嚴重受損，則要對其進行修理。遭受損傷的構件在維修后能恢復其對船體強度的貢獻，從而提高船體梁的可靠性水平。 -
For a naval ship with a long strength superstructure and a lot of hatch, it is difficult to evaluate the hull girder ' s strength by general beam theory because of the complexity of the hull structure
摘要當艦船設有長度較長但開口較多的上層建築時，其船體結構的復雜性使船體總強度很難用常規的梁理論方法確定。 -
The formulation has been applied to a bulk carrier which sails in the north atlantic ocean. furthermore, the effects of maintenance actions in increasing the reliability level of ship hull girder are analyzed
由此可見，對存在疲勞和腐蝕損傷的船體梁進行時變可靠性分析時，必須考慮維修因素的影響才能更加符合實際情況。 -
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。
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