During pumping operation the maximum strains are subject to variation from 17 v - e to 22p e with velocity from 0 给出了模型中栅条系统的实测自振谱和发生超驰振动时的临界流速。
Application of bridge self vibration frequency inspection in technicalexamination and determination of harbour bridge in dalian port 桥梁自振频率检测在大连港港湾桥技术检定中的应用
The paper points out that the natural vibration frequency of strings can not be used to that of suspension cables 指出工程实际中不能将弦线的自振频率作为有集中荷载作用的悬索的自振频率。
The change of natural frequency and lateral forces of the structure due to plasticity of the structure are taken into account 文中考虑了结构进入塑性后由于刚度改变造成的自振周期和侧向力的变化。
As a design method , frequency tuning approach ( fta ) was suggested to be used first to avoid critical frequency ranges 建议人行桥梁设计时应首先采用频率调整法，使结构自振频率尽量不落在敏感频率范围内。
And the state of art of the study on self - vibration characteristics , dynamic response and vibration sources of workshop structures is introduced 还介绍了我国对厂房结构的自振特性、动力响应分析、振动振源的研究现状。
By looking for the cause of " self - oscillation , " the paper provides basis for improving the working reliability of the adjustable optical - intensity system 通过探寻自振现象?生的原因， ?提高调光系统工作的可靠性提供了依据。
The substructural technique is employed to parameters identification of frame , natural frequencies and generalized mode shapes of frame are computed 本文把动态子结构方法引入框架结构参数识别中，算出结构的自振频率和广义振型。
The results indicate that the natural frequency of vibration of multispan stone arch bridge is closely packed and it has adequate safety allowance 研究结果表明，多跨度石拱桥作为一个整体，其自振频率较为密集，桥梁具有足够的安全裕量。
( 5 ) by studying the natural frequency of the reinforced earth retaining wall , the basic discipline of the first four natural frequencies is found out ( 5 )对加筋土挡墙的前四阶自振频率进行了研究,得到加筋土挡墙的前四阶自振频率的基本规律。
