The calculation - improving of stress amplification coefficient and the checking of its trouble - shooting model 羊肠线应力放大系数改进算法及故障模型鉴别
Calculating results show the dynamic amplification coefficient is smaller when the stiffness of the bridge is larger and vices versa 计算结果显示,桥梁的刚度越大,由于抖振导致的动力放大系数越小;而桥梁的刚度越小,其动力放大系数越大。
It is found that the current amplification coefficient strongly depends on the spin polarization of the electrons injected from the emitter to the base , the spin relaxation time and the width of the base 自旋晶体管中的电流放大系数主要取决于注入基区的自旋极化电子的极化程度,基区中自旋的驰豫时间及基区的宽度。
Fatigue test indicates that strain multiplier have not been damaged for fatigue in the service life of fatigue life gage , fatigue response of fatigue life gage can be derived from the strain amplitude equal to specimen strain multiplied by amplification coefficient of strain multiplier 疲劳实验研究表明,在疲劳寿命计工作寿命内,应变倍增器无疲劳破坏情况,疲劳寿命计疲劳响应可由静载标定放大倍数乘试件表面应变后所对应的等幅应变值得到。
According to the theory analysis and engineering practice , the application of natural vibration features in bridge inspection is introduced . during the transient dynamic analysis of pubugou cfst arch bridge , the time history responses of the structure under uniform velocity moving load and impact load are analyzed , and the amplification coefficients of deflection and internal forces of the structure are intensively analyzed 在瀑布沟大桥的瞬态动力分析中,模拟分析了当移动荷载以不同速度通过桥面时的时间历程动力响应以及在冲击荷载作用下桥跨结构的时间历程动力响应,并对桥跨结构在移动荷载和冲击荷载作用下的动力放大系数作了较为详细的分析。