讨论了起重臂在弯曲刚度和扭转刚度失效模式下的可靠性灵敏度设计问题。
Reliability sensitivity of jib with bending and torsion stiffness failure modes was proposed.
结构在使用过程中可能会出现各种失效形式，例如静载强度失效、刚度失效和疲劳失效等失效形式。
It is possible that many failure modes have emergence during the structural service period. For example, dead load strength failure, stiffness failure and fatigue failure.
目前结构系统在静载作用下失效和疲劳载荷作用下失效以及刚度失效这几种情况下的可靠性大多是分别予以考虑的。
At present, in many cases, reliability analysis of structural systems of strength failure, stiffness failure and fatigue failure is respectively considered.
主要测量指标：扭转、弯曲和轴向刚度，以及循环载荷下轴向失效力。
Main Outcome Measures: Torsion, bending, and axial stiffness and axial failure force after cyclic loading.
每个样本均采用循环轴向荷载以至固定失效来测定其轴向刚度和抗扭刚度。
Each specimen underwent axial and torsional stiffness testing along with cyclic axial loading to failure.
真空结晶器属于外压容器，在使用过程中，经常因刚度不足而导致失效，使容器失去了原来的形状，从而影响生产的正常进行。
In the using process, no enough stiffness of vacuum crystallizer led to failure, so it lost the original shape and had a great influence on the normal control of production.
基于楼层屈曲的思想，认为楼层刚度的消失是结构失效的指标，给出了两种考虑楼层屈曲的计算方法。
In light of story-based buckling, that is, the structure is lapsed when the story stiffness is vanished, two kinds of calculation method are derived.
试验结果表明，导致密封失效的主要原因是后端盖刚度设计过低。
Tests indicate that main cause for sealing failure is that rigidity of the rear cover is too low.
通过对喷锚支护机理进行分析，得出喷锚支护失效的主要原因在于喷锚支护的刚度和极限变形量与围岩不匹配。
Based on the mechanism analysis of shotcrete-bolt support, the main cause of support failure was found to be the mismatch between its stiffness and ultimate distortion and the wall rock.
基于Hertz接触理论，分别建立A MB失效后转子与保护轴承内圈之间的碰撞模型和保护轴承的实时动刚度模型。
Based on the Hertz contact theory, the collision model between rotor and catcher bearing inner race and the real-time dynamic stiffness of the bearing after AMB failure are respectively established.
基于Hertz接触理论，分别建立A MB失效后转子与保护轴承内圈之间的碰撞模型和保护轴承的实时动刚度模型。
Based on the Hertz contact theory, the collision model between rotor and catcher bearing inner race and the real-time dynamic stiffness of the bearing after AMB failure are respectively established.
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