分析了在各种边界条件下的圆柱壳,给出了极限载荷、应力场和速度场的全部公式以及长壳和短壳的判断公式。
The cylindrical shell with various boundary condition are considered. The formulae of collapse load, stress field and velocity field and the judgement equations for long or short shells are given.
鉴于有矩理论的复杂性,本文在作极限分析时,采用了无矩理论和半无矩理论的平衡方程分别作为中短壳和长壳的平衡方程。
Since normal plastic theory is too complex, the membrane theory and the semi-membrane theory are adopted to establish the equilibrlm equations in plastic limit analysis.
面包虫长约一英寸,用大蒜和酱油调味,口感让我想起松脆的带壳坚果。
The inch-long larvae, flavored with garlic and soy sauce, reminded me in texture of delicate, nutty seedpods.
霍姆斯曾把荷兰榆病害的致病因子,长喙壳的两个亲和小种杂交。
Holmes crossed two compatible races of ceratocystis ulmi, the causal agent of Dutch elm disease.
卵形身体的十肢头足类动物,窄的鳍和身体一样长,钙质内壳大。
Ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell.
运用结构振动的波动方法对有限长的材料不连续区域在圆柱壳中的能量流传播特性进行了研究。
The propagation characteristics of vibrational energy flow in circular cylindrical shell with finite region of material discontinuity are investigated by wave motion approach.
从理论上分析了各向同性弹性介质中有限长充液圆柱壳的自由振动特性。
The axisymmetric vibration characteristics of finite length fluid-filled cylindrical shells in elastic medium are analyzed systematically in theory.
足丝的浓集团子与贻贝整体湿重(或壳长)呈负幂函数关系。
The relationship between concentration factor of byssus and whole body wet weight (or shell length) is a negative power function.
基于夹层壳理论和三维弹性动力学理论,研究了无限长夹层圆柱壳在移动内压作用下的临界速度。
The critical velocity of the infinite long sandwich shell to moving internal pressure is studied using sandwich shell theory and elastodynamics theory.
对水下由环形肋板连接的有限长双层柱壳在点激励下的稳态振动特性进行了研究。
The characteristics of vibration in a submerged double shell connected by annular plate drived by a point force in inner shell is studied.
任一种海栖软体动物,如滨螺,长有螺旋形的壳。
Any of various Marine gastropods, such as a periwinkle, having a spiral shell.
对大多数的油底壳放油螺栓我能用长的扳手做几次引体向上式操作直至螺栓开始转动。
I can practically do chin-ups with a long wrench on most drain plugs before they'll turn.
利用长度待定法,得到壳体在任意边界条件下固有频率与壳长关系的精确解。
Using the length-determination method, an analytical solution of the relation between natural frequencies and shell lengths with arbitrary boundary conditions is obtained.
DLZ1系列电磁离合器制动由离合器部分、动器部分、动轴、壳、座等组成。无空载力矩、用寿命长、作灵敏、能稳定、装调整方便。
DLZ1 series consist of a clutch, a brake, a transmission axis, a hood and a base. They feature no racing torque, durable, adaptable, reliable and easy to install.
对于所有给定壳长、壳厚、半径及封头厚的组合结构,均找到了完全解。
The exact solutions have been found for all configurations with different parameters of shell length, shell thickness, radius and plate thickness.
用解析法求得了无限长园柱壳一边固定,另一边受力偶作用的精确解。
The exact solution of infinitely long circular cylindrical shell with one end fixed, the other end loaded by a couple is obtained.
为准确获得大型石油储罐的壁板应力分布,提出了一种长-短圆柱壳解析方法。
For accurately obtaining the stress distributions of large oil storage tanks shell, an analytical method for solving the long-short cylindrical shells was proposed.
早期居民吹响它是打信号表明近海发现一沉船,土生土长的岛民被称为海螺壳。
Early settlers blew blasts to signal that a sinking ship had been spotted offshore, and native-born islanders are commonly called Conchs.
壳长与体重、软体部重呈幂函数相关。
Shell height was power function to live body weight and tissue weight.
以浸没在流体声介质中的无限长弹性薄圆柱壳为研究对象。
An infinite thin cylindrical shell immersed in acoustic medium is studied.
杂交鲍苗的壳长和存活率明显大于我国的皱纹盘鲍自交鲍苗。
The survival rate and growth rate of crossbred abalone juveniles were significantly higher than those of H. discus hannai Ino.
分析了壳体的固有模态、激励力和声辐射三者之间的关系,这为用主动控制方法降低有限长加筋双层圆柱壳的振动噪声,提供了理论依据。
The vibration and sound radiation from a finite stiffened double cylindrical shell driven by a point force on the shell surface in the radial direction are studied in this paper.
在考虑管道长度特征的前提下,把管道近似地看作长梁或薄壳,然后以“含裂纹零维度单元”模型(即垂直于裂纹面方向的单元尺度为零)计算出裂纹对管道动态特性的影响。
This paper treats a pipe as a beam or as a thin shell. Then, the effect of cracks on the dynamic characteristics of pipes is calculated by means of the model of zero dimension element with crack.
结果表明该动态测长装置的方法和原理是可行的,在单根包壳管的装管中采用这种测量方法,是较为理想和先进的。
The results are as expected and show that the method and principle used in the measuring device are feasible. It is an ideal and advanced method for the pellet loading of single cladding tube.
由于海水中碳酸钙浓度降低,贝壳类 动物也许再也长不出保护壳,珊瑚礁可能会变成碎石。
Shellfish may no longer be able to create their protective shells due to falling levels of calcium carbonate in the water, while coral reefs could be reduced to rubble.
本文采用半解析法分析了弹性介质中有限长双层圆柱壳的动力响应。
In this paper, the dynamic response of a finite doubled-ecker cylindrical shell buried in elastic medium has been studied by a semi-analytic method.
结果表明:壳长、壳宽、壳高、韧带长与软体部质量相关极显著P。
Shell length, shell width, shell height, ligament length, and edible part weight of each of 200 Perna viridis individuals were measured.
选取了几种几何尺寸不同的单层柱面网壳,分析了矢跨比和长跨比对单层柱面网壳动力稳定性能的影响。
With considering various geometric sizes of single-layer cylindrical reticulated shells, the effects of rise-to-span and length-to-span to the structural dynamic stability are also analyzed.
罗布·因尼斯和丹·皮萨罗一起用废弃的美军战机座舱壳建造了这艘长15英尺的海豚船。
Rob Innes and Dan Piazza built the 15ft long Seabreacher using the discarded canopies of us fighter jets.
罗布·因尼斯和丹·皮萨罗一起用废弃的美军战机座舱壳建造了这艘长15英尺的海豚船。
Rob Innes and Dan Piazza built the 15ft long Seabreacher using the discarded canopies of us fighter jets.
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