失稳

边坡变形失稳影响因素分析及GIS评价方法研究

On Unstability Factor Analysis of Slope Deformation and GIS Evaluation Method

本文以重400t的反应沉降再生器为工程实践，以模拟试验为基础，对在变径段设置吊耳的结构形式进行了模型失稳研究，并顺利成功地进行了吊装。

Based on the simulation test , a practical research on model unstability of structure forms of ears set on the variable diameter parts of 400t reaction-settlement-regenerator are given in this article . The successful result for hoisting and assembling has been got .

层流边界层C型失稳研究

A Research of the C Type Instability in a Laminar Boundary Layer

DRFS加Cage治疗腰椎失稳14例报告

Report on Treatment of 14 Cases with Unstable Lumbar Vertebrae by DRFS Plus Cage

断裂实验表明，除了一个焊接接头紧凑拉伸（CT）试样是脆性启裂外，其它CT试样均在裂纹延性启裂并缓慢扩展后，发生脆性失稳断裂。

Fracture test indicated that brittle unstable fracture occured after ductile crack initiation and slow propagation for all the compact tension ( CT ) specimens , except one welded joint specimen was brittle crack initiation .

结果表明Gr／Al的应力应变曲线可分为两个部分：非线性弹脆性变形以及材料失稳后的残余变形。

The experimental results show that complete stress strain curves of the material can be divided into two parts : the elastical brittle deformation and residual deformation .

用虚功原理求解管道发生弹性失稳时高速流体的临界流速Vcr

Critical Velocity Calculation Based on Virtual Work Principle for a High Speed Fluid in a Pipeline of Elastic Instability

较高的表面能是SiO2薄膜产生亲水性并导致体内贮存电荷失稳的重要原因。

High surface energy is the main reason of moisture intimacy in SiO 2 thin film and leads to the decay of charges stored in the bulk .

本文采用了理论分析及非线性有限元分析的方法探讨了单纯内压载荷以及内压&轴向压缩位移载荷下U形无加强波纹管平面失稳的应力判据。

In this paper , the theoretic analysis and the Finite Element Analysis is presented to find out criterion in the in-plane instability of non-reinforced U-shape bellows under pressure loads or pressure-compress loads .

以励磁参考电压Vref为控制参数，研究了多个励磁参考电压可控时系统的分岔点以及失稳模式的变化，给出系统在多励磁调节器（AVR）可控时的最大动态负荷裕度；

The changes of bifurcation points and unstable modes are studied , and the maximal dynamic load margin in multi-parameter bifurcation space is given .

LiTaO3晶体-熔体界面失稳后界面形态的演化

The Evolution of Morphology of Crystal-melt Interface for LiTaO_3 after Instability

运用岩石破裂与失稳过程分析RFPA2D系统，对滑动形成过程进行了数值模拟研究。

By using a Rock Failure Process Analysis code ( RFPA 2D ), slip failure process and associated seismicity in rock masses are numerically studied .

最大相容应力法是通过求解综合的稳定平衡方程而确定失稳应力的，它能精细地给出裂纹撕裂扩展的全过程，比JR曲线稳定性分析方法更为简洁精确。

The maximum admissible stress method by solving the comprehensive stability equilibrium equation determines the instability stress , it can give all process of crack ductile tearing and is more explicit and more accurate than J_R curve stability analysis .

根据Floquet理论对该系统扰动微分方程的平衡点的稳定性进行了分析，并用数值方法研究了平衡点失稳后的倍周期分岔过程。

Furthermore , the stability of the equilibrium point for the perturbed differential equations was analyzed by utilizing the Floquet theory , and the process of a period-doubling bifurcation after stability loss of the equilibrium point were investigated numerically .

在准一维导体（如蓝青铜）中，由于其结构强烈的各向异性及特殊的费米面拓扑结构导致晶格的Peierls失稳，从而伴随形成电荷密度波（CDW）。

In the quasi-one-dimensional conductors , the strong anisotropy of the electronic structure and special topology structure of the Fermi surface will induce the Peierls instability and form the charge density waves ( CDW ) below a characteristic temperature .

电力系统最临近静态电压失稳点的确定

Determination of closest bifurcations for voltage stability analysis in power systems

齿轮联轴器对轴承转子系统失稳转速的影响

Influence of Gear Couplings on the Instability of Bearing Rotor Systems

分形几何在边坡失稳预测中的应用

Application of fractal geometry on forecasting the stability of the slope

驳岸整体失稳及应急措施的理论分析

Theoretical Analysis on Overall Instability of Barge Terminal and Emergency Measures

斜坡失稳的燕尾突变模型

Analysis of coattail catastrophe model of slope failures using stiffness ratio

方法：对两例不同类型的寰枢椎失稳的典型病例进行回顾性分析。

Methods : Two cases of atlantoaxial instability were analysed retrospectively .

60%以上的边坡失稳是由于降雨引起的。

More than 60 % of landslide is due to rainfall .

走向条带煤柱破坏失稳的尖点突变模型

Cusp catastrophic model of instability of strip coal pillar along strike

坝体失稳是引发尾矿库溃坝或其他尾矿库事故的一个重要原因。

Dam instability is an important factor of accidents of tailings .

地震是活动断层在构造应力作用下突发失稳的结果。

Earthquakes result from instability of active faults under tectonic stress .

采空区煤柱-顶板系统失稳的力学分析

The analysis of instability of coal pillar & stiff roof system

高速公路路堑边坡失稳原因分析及治理措施的选择

Analysis of Highway Cut Slope Stability Failure and Its Treatment Measures

岩石的塑性成分对失稳型式的影响

Effect of plastic components in rocks on the modes of instability

提升罐笼运行失稳原因分析及对策

Reason analysing and countermeasure of winding cage which lost running stability

强度折减有限元失稳判据研究。

Criteria of slope failure of shear strength reduction method .