同时也分析了冲头对圆管碰撞时，导致圆管由弹性变形向塑性变形转化学的临界速度值。
We also analyse the critical velocity, at which elastic deformation translate to plastic deformation when the bullet impact the tube.
在圆管与圆管的爆炸复合研究中，需要对管的动态参数做定量的估计。
In the research of explosive welding between tubes, it is necessary to evaluate quantitatively the parameters of the moving tube.
根据试验结果和建立的运动方程，获得阻力系数与圆管形状的关系，并计算了圆管所受到的拖曳力。
Based on the test results and movement equation established, the relationship between drag coefficient and tubular shape is obtained and the drag force imposed on pipe is calculated.
围绕圆管带式输送机的输送机理，分析了圆管带式输送机的等效转动惯量，对于软起动装置的设定有一定意义。
According to the conveyance mechanism of pipe belt conveyor, the paper analyzed the equivalent rotary inertia of pipe belt conveyor, which has certain sense for setting the soft start device.
简要分析了连铸连轧圆管坯表面缺陷的类别和形成原因，提出了改进圆管坯质量的措施。
Types of and causes for the surface defects of the CC round billet for pipe - rolling with mandrel mill are analyzed, and quality improvement measures proposed.
分析内爆炸圆管膨胀破碎过程的应力，提出确定内爆炸圆管断裂半径的复合判据，从理论上预测不同材料圆管的破片初速度。
Stresses of the in-explosive cylinder were analyzed, compound criteria for determinating the fracture radius was put forward to calculate the initial velocity of cylinder fragment.
用数值方法分析了涡产生器式圆管管片式换热板芯单个圆管翅片区域内的传热与阻力性能。
To find the basic heat transfer performance of fin-tube heat exchanger, the numerical analysis is carried for heat transfer element with single round and related fin area.
首次采用间隙元法求解金属圆管在爆炸焊接时的二维弹粘塑性大变形的接触问题，对圆管内包爆炸焊接的全过程作了详细分析。
The gap element method is used to analyse two-dimensional elastoviscoplastic contact problem of circular tubes under explosive welding for the first time.
钢管因其端部外形又分成圆管、方管、矩形管、扁圆管、P形管、异型管。
Pipe end its shape is divided into tube, square tube, rectangular tube, oblate tube, P-shaped pipe, rectangular pipe.
采用ANSYS/LS-DYNA软件对空圆管和泡沫铝填充圆管受轴向压缩时的吸能特性进行数值模拟研究。
Using ANSYS / LS-DYNA software, based upon the test results, the axial crash behaviors of the aluminum foam-filled circular tubes are analyzed.
在圆管与圆管的爆炸复合研究中，需要对管的动态参数做定量的估计。
For the research of explosive welding between tubes, it is necessary to evaluate quantitatively the parameters of the moving tube.
在此基础上，导出了适用于圆管的运动微分方程序。据此研究了非牛顿流体圆管紊流流场及两种非牛顿流体在圆管中的顶替规律。
Then, based on that, the turbulent motional differential equation for a pipe is made out From that, the turbulent flow and displacement laws for non-Newtonian fluids in a pipe have also been studied.
对比分析了在同等条件下微尺寸圆管和宏观尺寸圆管内流动的差别，得出微尺寸圆管内流动的优势。
Comparative analysis under the same conditions in the micro-tube and macro-size pipe flow differences, come to flow advantage of micro-size pipe.
同时利用直圆管柱模型，模拟计算出了圆管螺旋流的理论分布结果。
The theoretical distributions of the cylindrical spiral flow were simulated and calculated using the straight cylindrical model.
本文对圆管型材制品，给出了一种切线分流桥的结构，能够减轻甚至避免圆管表面出现明显焊合线；
In this paper, a new design of tangent bridge structure was proposed, which can reduce or even avoid welding line.
本发明涉及一种圆管对焊快速找正定位装置及圆管对焊方法。
The invention relates to a circular duct butt-welding rapid spotting and locating device and a circular duct butt-welding method.
文中分析了圆管流转过程中，交替系数与紊动强度随雷诺数的变化规律及圆管内紊动强度随径向位置的变化规律。
The variation laws of intermittent factor and turbulent intensity with Reynolds number in transition to turbulence in pipe flow and the...
文中分析了圆管流转过程中，交替系数与紊动强度随雷诺数的变化规律及圆管内紊动强度随径向位置的变化规律。
The variation laws of intermittent factor and turbulent intensity with Reynolds number in transition to turbulence in pipe flow and the...
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