浪载荷,wave load
1)wave load浪载荷
1.It also simulates the oceanwave load on the ship body by the five basic excitations of swaying,surging,heaving,rolling and pitching.参照建筑学中地震分析的方法,将该机载体船的横荡、纵荡、升沉、横摇和纵摇比拟成5个自由度的基础激励来模拟海浪载荷。
2.Finite element models of quayside complete machine and diagonal brace are established respectively by adopting ANSYS,then it has been found that the link failure occurs during the complete machine shipping of the quayside container crane is caused by the axial force effects resulted from windwave load.利用ANSYS分别建立岸桥整机和斜撑杆有限元模型,得到岸边集装箱起重机整机船运中连接失效的原因主要是受风浪载荷产生的轴力影响。
英文短句/例句
1.A COUPLED ELEMENT ANALYSIS OF WAVE LOAD ON BODY WITH ARBITRARY SHAPE任意形状物体波浪载荷的耦合元分析
2.Wave Loads and Strength Assessment of Minimum Offshore Platform;近海简易平台波浪载荷及其强度评估
3.Mooring System and Wave Forces of Spar Platform;Spar平台系泊系统计算及波浪载荷研究
4.Numerical Calculation of Wave Loads on a 3-D Body Based on NURBS;基于NURBS的三维物体波浪载荷数值计算
5.The comparative analysis of wave-induced loads to the series deck transport ships系列甲板运输船波浪载荷比对性研究
6.NONLINEAR STOCHASTIC RESPONSE OF JACK-UP PLATFORMS SUBJECTED TO WAVE LOADS自升式平台的非线性随机波浪载荷响应
7.Nonlinear Method for the Computation of Ship Motions and Wave Loads;船舶运动与波浪载荷计算的非线性方法研究
8.TLP Research of Nonlinear Wave Force and Response;张力腿平台非线性波浪载荷和运动响应研究
9.Damaged Ship Motions and Wave Loads Based on 3-D Hydrodynamic Theory;破损船舶运动与波浪载荷的三维计算方法研究
10.The Research of Extreme Response of Ocean Riser Subjected to Nonlinear Wave Loads;海洋立管在非线性波浪载荷下的极值响应研究
11.Low-frequency Liner Wave Loads and Motion Response of TLP;张力腿平台低频线性波浪载荷及响应研究
12.Ship Motions and Wave Loads Considering Initial Transverse Inclination;可计及初始横倾的船舶运动与波浪载荷预报
13.Study on the intra-domain numerical calculation at the 3D linear wave loads全航速三维线性波浪载荷时域内数值计算研究
14.The Effect Analysis of Ocean Wind & Wave Load on 7500 t Floating Crane Configuration海洋风浪载荷对7500t浮式起重机结构影响分析
15.Investigation on Bottom Slamming Load for FPSO in Waves;FPSO在波浪中的底部砰击载荷研究
16.The Response of Longitudial Motions and Loads of Ship in Wave;船舶在波浪中的纵向运动响应及载荷
17.Analysis of Integral Wave Load Acting on Truss-Type Offshore Structure桁架式近海结构物整体波浪荷载分析
18.Dynamic Response of Seabed and Pipeline Due to Wave Loading;波浪荷载作用下海床及管线的动力响应研究
相关短句/例句
wave load波浪载荷
1.Calculation and analysis of motion characteristics andwave load for two types of deepwater semi-submersible drilling rig with different configuration;两种典型深水半潜式钻井平台运动特性和波浪载荷的计算分析
2.Verticalwave load forecast for trimaran;三体船垂向波浪载荷预报
3.Study on the intra-domain numerical calculation at the 3D linearwave loads全航速三维线性波浪载荷时域内数值计算研究
3)wave loads波浪载荷
1.The analysis and proposal of!computation methods ofwave loads acting on offshore platform;海洋平台波浪载荷计算方法的分析和建议
2.Experimental research on thewave loads on the cross-structure of a catamaran;双体船连接桥波浪载荷的试验研究
3.3-D hydroelastic method for analysis of motion andwave loads of an FPSO ship;FPSO运动与波浪载荷三维水弹性分析方法研究
4)wave loads波浪荷载
1.Based on the results of a 3-D wave model test and referring to the achievements in literature,the effects of wave obliquity and multi-directionality onwave loads acting on vertical wall are investigated.基于三维波浪物理模型实验研究的结果,参照国内外已有的研究成果,探讨了波浪斜向性和多向性对不规则波作用于直墙堤上波浪荷载的影响,表明波浪是否在堤前破碎其影响波浪荷载的规律是不同的。
2.Based on the computational methods of wave statistic characteristics in the long-term distribution,viscous resistance in waves for hull,and Green function in the frequency for motion and loads a procedure to select sea-state,to determine the transition drag of hull,and to predict motion andwave loads for FPSO transition is developed and used to a FPSO transit work.应用作业海域波浪短期统计特征长期分布计算法、粘性阻力和风浪中阻力增加计算以及运动与荷载的频域Green函数的计算方法,提供了FPSO迁航海况选择、迁航阻力确定和船体运动与遭遇波浪荷载预报的计算方法和应用实例。
5)wave loading波浪载荷
1.Analysis and calculation ofwave loading on 7500 t ultra-large-scale floating cranes;7500t特大型浮吊波浪载荷分析与计算
2.This model is based on the non-linearity between soil and piles, in consideration of dynamic sensitivity and load randomness ofwave loading.该模型采用改进的NewWave模型描述随机波浪 ,借助非线性弹簧模拟平台结构的桩—土之间的相互作用 ,综合考虑了影响平台结构动力响应的动力敏感性、非线性以及波浪载荷的随机性因素 ;同时以波面极值出现前后的若干载荷循环作用下的结构响应结果作为对平台结构响应的估计 ,大大节省了计算时间。
3.The acquisition of ship motion andwave loading is based on the linear response of ship in harmonic wave and calculated by ship with no speed running beam sea, which is believed the most dangerous loading condition for SWATH ship according to the ship model testing results.确定船体运动和波浪载荷的方法是以谐波中船舶的线性响应为基础 ,按零航速横浪来计算的。
6)wave load波浪荷载
1.Experimental study on dynamic strain and strength of silt underwave load;波浪荷载下粉质土动应变和动强度的试验研究
2.The irregular distribution of thewave load along the erect riser makes the computation of equivalent wave nodal force difficult when applying Finite Element Method to analyze riser s strength.波浪荷载沿垂直立管的分布是不规则的,这对工程中用有限元法分析立管强度进行等效波浪结点力的计算带来困难。
3.Cyclic pore water pressure could be produced by the action of thewave load in the offshore sand foundation.波浪荷载的作用会在近海砂体基础中产生循环孔隙水压力,研究循环孔隙水压力作用下砂床土体的力学行为对海岸和近海工程有重要意义。
延伸阅读
波浪具有自由表面的液体的局部质点受到扰动后，离开原来的平衡位置而作周期性起伏运动，并向四周传播的现象。波浪形成后，可以看到液体表面作此起彼伏的波动。研究波浪运动规律在国民经济建设中，特别是对航运、港口、海洋等工程，有重要的理论意义和应用价值。按引起波浪的原因，波浪分为风成波、潮汐波、地震波、船行波等。海洋、湖泊、水库中发生的波浪多属风力引起的风成波。若波形向前移动，为推进波；若波形不向前移动，只在原处作起伏运动，为立波。若水深H与波长λ之比H/λ≥1/2，水底对波浪运动无影响,为深水波；若H/λ＜1/2，水底对波浪运动有影响，为浅水波。图1所示为波浪纵剖面图。在静水面以上部分的最高点为波峰，静水面以下部分的最低点为波谷。波峰与波谷间的铅直距离为波高h,两相邻波峰或波谷之间的水平距离为波长λ，h/λ为波陡。平分波高的水平线为波浪中线。因波形上下不对称，波峰处的波形曲线较尖突，波谷处较平坦，波浪中线与静水面不重合，波浪中线超出静水面的高度为超高 ζ。推进波波形移动一个波长或立波波形起伏一次的时间为波周期 τ。推进波波形移动的速度为波速C,C＝λ/τ。h、λ、ζ、τ、C等决定波浪形态的物理量统称为波浪要素。波浪问题主要是求解波速、波周期、超高、质点运动速度、波压力、波能量等。研究波浪的理论有摆线波理论、微幅波理论、斯托克斯波理论等。摆线波理论假定：深水推进波质点运动轨迹为圆,浅水推进波质点运动轨迹为椭圆,且轨迹圆和椭圆均随深度的增大而迅速减小(图2);深水推进波的波形为圆余摆线，浅水推进波的波形为椭圆余摆线；立波波形为推进波与反射波波形叠加，其质点轨迹为抛物线。在上述假定基础上，应用理想液体拉格朗日连续方程、运动方程并结合边界条件求解。微幅波理论是在波高、波陡、质点运动速度都很小的假定条件下应用无旋运动基本方程，并将边界条件线性化后求解。其波形为余弦曲线。斯托克斯波理论是在波陡为小量的条件下将边界条件的非线性方程展开为逐级近似方程，再逐级求解。参考书目天津大学水力学及水文学教研室编：《水力学》，下册，人民教育出版社，北京，1980。易家训著，章克本等译：《流体力学》，高等教育出版社,北京，1983。 (Chia-shun Yih, Fluid Mechanics, McGraw-Hill, New York, 1969.)
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