The transient dynamic stress analysis by cyclic symmetry method was presented in this paper.
根据波传播理论和叶盘系统结构及其激振力特性,提出了求解瞬态动应力的循环对称计算方法。
In the process of the hydraulic anchor anchoring,Be involved with the mutual contact of steel sheet which is cyclic symmetry structures and the steel sheet teeth mesh with the rock.
水力锚锚定过程中,涉及到膨胀的钢片相互呈循环对称接触、钢片齿牙井壁的锚定啮合。
The empiric formula is proved under alternatins compound stress based on an experimental curve of synchronous symmetry cycle, and safety level of GOUGH formuia is investigated in the extended application.
本文根据同相对称循环实验曲线,对复合交变应力下的经验公式进行证明,并且研究了该公式推广应用的安全程度。
Using specific value method to calculate fatigue damage of metallic materials under unsymmetric cycled loading;
用比值法计算非对称循环加载下金属材料的疲劳损伤
Low cycle fatigue experiments of single crystal superalloy DD3 in the[001],[011]and[111] orientations under asymmetrical cyclic loading at 680℃were performed.
进行DD3单晶合金在680℃温度下[001]、[011]和[111]三种取向的非对称循环载荷低周疲劳试验研究。
Low cycle fatigue experiments of DD3 single crystal superalloys along ,and orientations under asymmetrical cyclic loading at 680℃ showed that crystal orientation affected low cycle fatigue life of DD3 single crystal superalloy significantly,life along orientation was the longest,life along orientation was the shortest.
在680℃温度下进行[001]、[011]和[111]三种取向的DD3单晶合金光滑试样非对称循环载荷低周疲劳试验,结果表明,晶体取向对DD3单晶合金的应变疲劳寿命有显著的影响,[001]取向寿命最长,[111]取向寿命最短。
Investigation of the Mistuning Sensitivity of Cyclic Structure Modes
循环对称结构模态对失谐的敏感性研究
The First Fundamental Circular Symmetric Problem On Bounded Elastic Disk;
有界弹性圆盘循环对称的第一基本问题
On the Symmetric Diagonal A-factor Block Circulant Matrices;
关于对称对角A-因子循环分块矩阵
endurance limit on base
对称的应力换向循环下的疲劳极限
Improving Mechanism of Information Asymmetry in Recycling Economy;
循环经济中的信息不对称及其改善机制
A Method of Deciding Real Symmetrical Cyclic Matrices Nonsingularity;
判定实对称循环阵非奇异性的一种方法
Study on Skew-Symmetric and Skew-Circulant Matrices
关于反对称反循环矩阵相关性质的研究
Patterns with cyclic or dihedral symmetry generated by means of dynamical systems
循环群、二面体群对称性图像的动力系统构图
Countermeasures For Negative Influence of Information Asymmetry On Developing Circular Economy;
信息不对称对发展循环经济的不利影响及对策分析
We call a matrix the generalized cyclic matrix if it can be written the product of a nonsingular diagonal matrix and a cyclic matrix.
可表为非奇异对角矩阵和循环矩阵乘积的矩阵，我们称其为广义循环矩阵。
Rotation-invariant Denoising Algorithm for Cyclic and Dihedral Symmetry Images
对循环群和二面体群对称性图像的“旋转不变”去噪算法
Environmental Information Asymmetry Influence on Circle Economy and Countermeasure--Concurrently Discussion about Environmental Information Service Industry Developing and Perfecting;
环境信息不对称对于循环经济的影响及其对策——兼谈环境信息服务业的发展与完善
The invariant tensor under projective transformations of semi-symmetric metric-recurrent connections is obtained.
给出了半对称度量循环联络在射影变换下的不变张量。
The projective trans for mation of semi-symmetric metric-recurrent connections on a Riemannican manifold is discussed.
讨论了黎曼流形上半对称度量循环联络的射影变换。
Recyclable Catalytic Systems for the Asymmetric Dihydroxylation of Olefins;
不对称二羟基化反应中可循环使用的催化体系研究
Metal fatigue strength test under symmetrical cycled intertransform stress;
对称循环交变应力作用下金属材料的疲劳强度实验研究
This method is called crop rotation.
这个方法被称为作物循环，
"The time taken to complete one cycle is called the period, and the number of cycles per second is the frequency; the maximum value in either direction is the current's amplitude."
完成一次循环的时间称为周期,每秒循环的次数称为频率,任一方向的最大值称为交流电的振幅。