在负刚度条件下，该法是收敛的和条件稳定的。
In the case of negative stiffness, the method is convergent and conditionally stable.
除强度条件外，环境刚度条件是发震的另一必要条件。
Besides the strength condition, the environmental stiffness condition is another one necessary for shock-generation.
在保证强度、刚度条件下，应尽量减轻破碎机机架的重量。
During the guarantee strength, stiffness condition, should try to reduce crusher frame weight.
以岩层控制中的关键层理论为指导，应用弹性板理论建立了关键层的刚度条件和强度条件。
Under the guidance of key layer theory in strata control, the conditions of stiffness and strength for key layer are established by using elastic slab theory.
化学反应器不仅要满足强度条件，以保证在使用中不发生断裂破坏；也要保证刚度条件，使设备在正常操作时的弯曲变形不超过规定的许可范围。
Reactors used in chemical industry must satisfy rigidity requirements to ensure the bending distortion to be controlled within the tolerated range as well as strength requirements to prevent breakage.
形成不稳定的充分条件是结构的质量轻、刚度小、阻尼小、或是高度(长度)大、长细比大。
The sufficient conditions to an instable structure are heavy mass, small stiffness and damping and tall with high aspect ratio.
双万向轴的优化数学模型必须满足强度、刚度、振动条件、稳定性及边界条件的约束。
The optimal mathematical model of the double universal spindle must satisfy the constraints of strength, rigidity, vibration condition, stability and boundary condition.
应用虚位移原理和结合考虑材料交界面上的约束条件，文章建立了接触单元的刚度矩阵和等效荷载向量。
Employing the virtual displacement principle and considering constraint conditions of material interface, the stiffness matrix and equivalent load vector for this element are established.
本文根据桥梁的振动原理，引入简支桥梁的边界条件，推导简支桥梁的振动方程，求解出桥梁刚度、振型的实际运用公式。
According to principle of bridge vibration, this paper lead through boundary condition of free beam and deduce vibrational equation of free beam to solve rigidity and model of vibration.
有限元模型用质量和刚度参数表示，这些参数由正交条件和特征方程的加权欧氏范数取极小值来确定。
The finite element model is expressed by mass and stiffness parameters, which are determined by minimization of weighted Euclidean, norms of orthogonality conditions and characteristics equations.
此外，边界条件对模型刚度的影响随着模型尺度的增加而逐渐减小。
Furthermore, the effect of boundary condition on the rigidity of model is decreased gradually with increase of model sizes.
分析了升力矩系数和扭转刚度的非线性特性对于稳定条件、失稳点以及失稳机理的影响。
The effect of nonlinearity of pitch moment coefficient and module of rigidity of torsion on conditions of stability, instability points and instability mechanism is analyzed.
主要研究了进行微小力测量时所需的重要参数——光阱刚度与实验条件的依赖关系。
In this paper, the results of the experimental study on the regulation are reported that the trap stiffness changes with experimental conditions.
由结构刚度矩阵行列式值为零的失稳条件导出结构失稳特征方程，从而精确地确定系统临界力值。
The precise critical force of a system can be deduced from the fact that the determinant of stiffness matrix of the system is equal to zero in the critical condition.
以满足刚度等效为条件，求得一个能方便算出多种截面的可供选用的传动轴计算公式。
Based on the condition that the strength equivalent to the stiffness required to met, one equation to calculate the power convey shaft with several different section areas was derived in this article.
提出可根据数控车床设计时选用的典型切削条件来计算机床总刚度。
This paper proposes that the total rigidity of a machine tool can be calculated in terms of the typical cutting condition at the beginning of design for the CNC lathe.
发现优化电机吊挂刚度可以改善其工作条件，特别是明显地减小电机垂向加速度，但机车整车性能几乎无变化。
The influences of the traction motor suspension stiffness and pitching moment of inertia on the accelerations at all directions and the dynamic performances of locomotive are analyzed.
局部单层浅网壳的设计关键在于在满足网壳刚度与整体稳定的条件下，确定经济合理的单层部分的可能布置区域和面积。
The design key of partial single-layer shallow reticulated shell is to ascertain the economical and feasible single-layer area with enough structure rigidity and global stability.
在考虑顶部厂房因端部山墙引起的侧移刚度不确定性的条件下，智能力矩鲁棒控制器的控制效果和稳定性要优于常规的主动控制器。
Due to the stiffness uncertainty of fastigium at the end of the building, the robust moment controllers give superior performance and stability to the normal active moment controllers.
遵循杆件应力约束、几何尺寸约束、刚度约束条件，建立了杆件截面尺寸相互关系式。
Besides, following the constraint of the member geometrical sizes and stiffness, this paper has set up the relationship between member section sizes.
根据平衡矩阵的条件数和刚度矩阵的条件数与最小特征值，评价基本单元的结构特征。
The structural performances are evaluated from the condition number (CN) of equilibrium matrix, and CN and minimum eigenvalue of stiffness matrix.
在这种模型中，接触单元的几何和静力约束条件是作为补充方程包含在刚度方程中。
The geometric and static constraint conditions on contact surfaces are treated as additional conditions and are included in stiffness equations.
同时给出了在此种条件下的阈值刚度和柱子的计算长度系数的表达形式。
Meanwhile, the formulas for the brace threshold stiffness and the effective length factor under these conditions are also given.
指出路面结构支撑条件、界面条件和层间刚度差是影响路面结构受力与使用寿命的三要素。
And pointing out three factors which influence the stress and service life, they are poling condition of pavement structure, the interface and the rigidity difference between layers.
为了使薄膜结构具有一定的刚度，必须对其施加预应力，以确定满足平衡条件和建筑使用要求的初始平衡形态。
Tensioned membrane structures must be prestressed for stiffness so that an initial equilibrium shape meeting architectural service requirements can be established.
在计算分析中，此法容易构造固结方程的EFGM刚度矩阵和处理不同边界条件。
By this method, it is easy to construct the EFGM matrix formulation of consolidation equations and to deal with different boundary conditions in calculation and analysis.
在弹性条件下，对锚栓钢板梁底面布置及梁侧面布置两种加固方式进行了滑移效应的理论推导，得出了滑移效应对梁强度及刚度的影响算式。
The slip effect of bolting bottom face and side face plate of RC beam is derived under elastic condition and its influence on strength and rigidity of RC beam is obtained.
必要时验算挠度、刚度要求、以及任一特殊材料和设计规定，以预防不利条件下的脆断。
Where required, to examine deflections, stiffness requirements, and any special material and design provisions to obviate brittle fracture under adverse conditions.
必要时验算挠度、刚度要求、以及任一特殊材料和设计规定，以预防不利条件下的脆断。
Where required, to examine deflections, stiffness requirements, and any special material and design provisions to obviate brittle fracture under adverse conditions.
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