刚度降低 meaning in English
stiffness degradation
Examples
- Theoretically speaking , certain crack or damage in structure will result in reduction of stiffness in the local part , and also will result the stress and strain concentration in the same part
理论上,结构的局部裂缝或损伤必然会导致结构局部刚度降低,从而使应变在损伤处发生集中,应变模态振型数值发生突变。 - Translation decrease the stiffness of elastic beams and also increase the system ' s damp , while rotation increase the stiffness of elastic beams and also make the system produce gyp effect
大范围平动使弹性梁的刚度降低，同时使系统阻尼增加；而大范围转动使弹性梁的刚度增加，同时使系统产生了能量转换的陀螺效应。 - However , with thefurther application of the composite steel - concrete continuous beams , some problemsare becoming more and more distinct , like cracking of concrete in the negativemoment region leading to lower section stiffness
而随着钢?混凝土连续组合梁的进一步应用,其负弯矩区的混凝土受拉开裂,导致负弯矩区截面刚度降低,影响结构的使用功能的问题越来越突出。 - Structures . frequency change square ratio is applied as a parameter to locate corrosion and cracking damage . a chart , which relates the loss in stiffness with changes in natural frequencies , is proposed to identify the degree of corrosion and cracking damage
根据结构锈裂损伤前后的频率平方变化比进行锈裂损伤定位；根据结构锈裂损伤后频率降低与刚度降低的关系，绘制结构锈裂损伤程度识别图，用于锈裂损伤程度识别。 - Finally , with the research results , the author analyzes the two tv tower drums : the normal concrete tower and the presrtressed concrete tower . at the same time , the calculation reliability of prestressed concrete tower drum and dropping - coefficient of stiffness established in this paper has been proved
最后，利用本论文的研究成果，对普通混凝土电视塔和预应力电视塔进行实例分析，验证了本文建立的塔筒计算公式和刚度降低系数计算公式的可靠性。