A method of analysis of the effect of aeroelasticity on the stability of elastic vehicles by using a simplified mathematical model of unsteady aerodynamic forces is proposed.

而后就简化的非定常气动力数学模型提出了分析气动弹性对飞行器稳定性影响的方法。

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With simplified unsteady aerodynamic force mathematical model, method of analysis for the effects of aeroelasticity on the dynamic stability of elastic vehicles is established.

就简化的非定常气动力数学模型提出了分析气动弹性时飞行器稳定性的影响的方法。

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A frozen soil engineering problem of pile foundation uplift, is analyzed using fracture mechanics method, and a simplified model for calculation the stability of pile foundation uplift is presented.

对桩基冻拔的冻土工程问题进行了断裂力学分析，并给出简化模型。

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A frozen soil engineering problem of pile foundation uplift, is analyzed using fracture mechanics method, and a simplified model for calculation the stability of pile foundation uplift is presented.

对桩基冻拔的冻土工程问题进行了断裂力学分析，并给出简化模型。

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