论文部分内容阅读
破坏模式效应是锥体结构动冰力的主导的综合效应。过渡型弯曲破坏峰值冰力最大,周期性最强,对冰速敏感,是最不利破坏模式,可产生最不利动冰力。通过1个案例、4个分析模型和1个数值模型论证了这一破坏模式效应假设。据此提出了一个窄锥动冰力函数,给出了3个参数的表达式。算例结果显示,在过渡破坏条件下预测的动冰力接近实测值。
The failure mode effect is the dominant integrated effect of the ice force on the pyramidal structure. Transitional bending damage peak peak ice force, the most cyclical, sensitive to ice speed, is the most adverse failure mode, can produce the most adverse ice force. Through a case, four analysis models and a numerical model to demonstrate the damage mode hypothesis. Accordingly, a narrow-cone ice-force function is proposed, and the expression of three parameters is given. The results of the example show that the predicted ice force under the condition of transient damage is close to the measured value.