这一试验方法是模拟日常使用情况下，沙发对长期重复性载荷的承受能力。
This test method is to simulate everyday use, the sofa on the long-term repeatability of the load bearing capacity.
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.
对于那些长期经受交变载荷作用的机械零件和工程构件，疲劳破坏是一种主要的破坏模式。
Fatigue damage is the main destroy mode for the machinery parts and engineering structures under alternate loading over a long period of time.
分析了固体火箭发动机药柱在长期贮存过程中，由于温度载荷谱的变化所引起的力学响应。
Stress analysis of solid propellant motor when temperature varies in storage is presented in this paper.
正常状态下，FPSO通过单点系泊装置长期系泊于工作海域，它随着环境载荷的作用绕单点自由转动，此时FPS O受风浪流等载荷的影响较小。
In normal state, FPSO is moored in its operation sea area for a long time by single-point mooring, which is turning with single-point due to environmental loading such as wind, current and waves.
这些接头和接箍在长期承受交变、冲击和振动载荷的工作条件下经常发生脱扣，甚至断裂。
Those tie-in and adaptor regularly drop out on secular cyclical loading, impulsion and vibration force, even breaking.
长期以来返回式飞行器为承受再入气动载荷和着陆冲击，采用具有防热层的刚性飞行器壳体，导致返回舱的质量和外形大于有效载荷的数倍。
A rigid aeroshell for aerodynamic deceleration and landing impact will result in mass and sizes of the re_entry vehicles exceeding several times those of the payload bus.
分析了固体火箭发动机药柱在长期贮存过程中，由于温度载荷谱的变化所引起的力学响应。
Stress analysis of solid propellant motor when temperature varys in storage is presented in this paper.
分析了固体火箭发动机药柱在长期贮存过程中，由于温度载荷谱的变化所引起的力学响应。
Stress analysis of solid propellant motor when temperature varys in storage is presented in this paper.
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