根据随机振动试验的有关理论,确定产品局部应变载荷的概率密度函数。
The probability density function of partial strain loading of product is defined in accordance with the relevant theory of random vibration test.
推导了交变载荷下弹塑性随机有限元的迭代格式,计算了局部多轴应力应变的随机响应。
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
对滑块局部应力采用对称均布载荷与对称非均布载荷两种方式进行计算。
Local stresses on bearing blocks are calculated as symmetrically as well as asymmetrically loaded with evenly distributed loads.
在承受载荷时,其局部范围大多产生弹-塑性变形。
When the load is applied, some local area will yield elastic - plastic deformation.
局部减薄弯头与直管的极限载荷不同。
The limit load of local thinning elbow is different from the straight pipe.
摩擦力大小和方向的改变,将使因高温高压产生的较大载荷无法向远处扩散,从而引起油管局部严重变形。
The fiction can prevent large loads caused by high pressure and high temperature from spreading, which can result in severe deformation in a short part of tubing.
根据汽轮机低压叶片所受载荷的特点,建立了一种基于三维有限元法和改进局部应力应变法的叶片疲劳寿命预测模型。
According to the characteristics of loads on blades, a model for estimating fatigue life of blades is presented based on three-dimensional finite element method and improved local strain method.
考虑零构件的随机因素,将随机有限元方法引入到交变载荷下弹塑性有限元的迭代格式中,得到局部应力应变的随机响应,为低周疲劳可靠性分析提供了更精确的依据。
The component randomness is considered. The SFEM is introduced in the iterative formulas of EFEM under cyclic loading to obtain the random response of local stress and strain.
本文推导了在任意载荷激励下直角三角形板单元局部动力效应修正公式。
In this paper, the local dynamic effect modification formulation of rightangled triangle plate element under arbitrary excitation is presented.
由于局部挠曲和破裂的相互斗争,石板的冲击凿入载荷-侵深曲线为双驼峰形。
Because of the struggle between local bend and failure, the percussive fore-penetration curves have two peaks.
通过局部模型的有限元分析,总结出一些螺栓载荷的变化规律。
The regulation of bolts' load distribution is given out by the finite element analysis of the local model.
文章研究了受初始静载荷作用下夹芯复合材料曲梁的面板的局部自由振动问题,并给出一种相应的理论分析方法。
A theoretical approach is provided to investigate the problem of local free vibration of an initially stressed curved sandwich beam in this paper.
采用有限元计算编码abaqus模拟了钨合金圆台试件在冲击载荷下的变形和剪切局部化行为。
The deformation behavior and shear localization in truncated conic specimens of tungsten heavy alloys under impact loading are simulated by the finite element code ABAQUS.
对大型直立设备安装过程中的现场焊接热处理过程中在轴向载荷和局部热载荷共同作用下的屈曲问题进行数值研究。
The buckling of large vertical cylindrical shells with welds subjected to local thermal action and axial loads was studied with numerical method by using ANSYS code.
某舰的螺旋桨尾轴长期处在恒定载荷作用下,虽然尾轴应力在弹性极限范围内,但是尾轴局部还是很容易发生微量的塑性变形。
Tiny deformation will appear in the local of the propeller shaft of certain ship which is endured an invariableness load, although the shaft stress is within the elastic limit range.
在组合载荷下机匣局部出现塑性,在1.5倍组合载荷作用下机匣可能发生破坏。
Some part of the casing reaches plastic range in the combined load state and the casing may be cracked under 1.5 times of the combined load.
本文通过四点弯曲试验研究了含脱层的蜂窝夹芯板在纯弯载荷作用下的局部屈曲模式和破坏模式,指出局部屈曲模式是跳跃失稳模式。
The modes of local buckling and general failure for honeycomb sandwich plates under pure bending loads are studied through four-point bending tests.
对不同的脱层损伤尺寸,层合板分别有整体、混合和局部三种屈曲模态,穿透脱层和埋藏脱层的层合板其临界载荷的变化规律是相同的。
The change in critical load value of both composite laminate plates with embedded and through-width delamination shows the same pattern for various delamination size.
本文以大客车车身典型零件为研究对象,采用局部应力应变法预测承受高周载荷零构件的疲劳寿命。
In This paper, the method of local stress and strain was used to predict the fatigue life of bus body parts under high cycling load.
根据扁壳中心局部产生微凹痕的临界外载荷作为汽车扁平类零件在轻量化过程中的一项重要指标。
The critical loads resulting in the local trivial dent in the center of the shallow shell is regarded as the important index for the lightweight of the automobile parts.
非线性屈曲分析结果较之特征值屈曲分析结果更能反映实际情况,得出当吊篮载荷分别为12058N和10126N时,臂节4和伸缩臂会发生局部失稳现象。
The nonlinear buckling analysis is sufficient to simulate the actual situation, draw telescopic arm section 4 and the overall buckling load when the hanging baskets were 12058N, and 10126N.
将自由参数摄动法与样条函数拟合法结合起来,研究了碟形扁壳在均布载荷作用下的非线性局部稳定问题,即壳体的起始失稳区域,以及该区域与几何参数的关系等问题。
The Free-Parameter Perturbation Method together with Spline-Method are applied to study the nonlinear local stability of the dished shallow shell under uniformly distributed loads, i.
提出了减振器环形节流阀片受局部变载荷作用时挠曲变形量的一种研究方法。
A research method for the deflection of throttle slice under the local distribution of variable load is presented.
设计了局部精整模具,并应用有限元数值模拟方法分析了局部精整成形过程中的充填情况、成形载荷以及弯曲变形的规律。
The finishing die was designed. According to finite element numerical simulation method, the filling state, load prediction and bending deformation of the local finishing process were obtained.
夹板固定是以固定带、夹板、纸压垫、牵引等装置所组成的局部外固定力学系统,固定带的约束力是夹板固定骨折的动力来源和外载荷。
Splint fixation is an external fixation system, composed of retainer, splint, paper pad and traction. Pressure under retainer is the power source of splint fixation in treatment of fractures.
通过有限元模拟,进一步研究了整形温度、摩擦系数对最大载荷的影响规律,为此类零件的局部精整工艺制定提供了理论参考。
Then the FEM simulation was applied to study the influence of friction factor and initial forging temperature on maximum forming force, which provided reference on finishing process for similar parts.
通过有限元模拟,进一步研究了整形温度、摩擦系数对最大载荷的影响规律,为此类零件的局部精整工艺制定提供了理论参考。
Then the FEM simulation was applied to study the influence of friction factor and initial forging temperature on maximum forming force, which provided reference on finishing process for similar parts.
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