mast n. 桅;柱,竿,天线杆,天线塔;(停飞船的)栓柱。 ★三桅船从船头起依次为 foremast 前桅, mainmast 大桅,主桅, mizzenmast 后桅。 桅上有接桅时从下而上依次为 lower mast 下桅, top mast 中桅, topgallant mast 上桅, royal mast 顶桅。 after [before] the mast 作为普通水手。 at the mast 在上甲板大桅下〔水手集合处〕。 spend a mast 桅竿被折断。 vt. 【造船】给…装桅竿;扯(帆)。 n. ?、栗等的果实〔可作猪饲料〕。
Parametric vibration of a guy in guyed mast structure 桅杆结构中纤绳的参数振动
Static model experiments and analysis of guyed mast 桅杆结构模型静力试验分析
Lattice towers and masts - code of practice for loading of guyed masts 格子形塔和杆.拉线式杆的载荷实用规范
Specification for construction and acceptance of steel structural tower and guyed mast engineering 塔桅钢结构施工及验收规范
Some research progress of fuzzy control at home and abroad is introduced in this thesis and the research on fuzzy control of wind response of guyed mast is made 本文还介绍了国内外学者目前对模糊控制的研究进展,并研究了mr阻尼器对桅杆结构风振响应的模糊控制问题。
Guyed mast present high deformation under horizontal forces , so geometrical non - linearity must be considered in the static and dynamic analysis of guyed mast 在水平力的作用下,桅杆结构变形呈现大变形特征,因此,在结构的静、动力分析中必须考虑其几何非线性效应。
Wind load is one of the dominating loads which must be considered in the design of structures such as high - rise buildings , large - span spatial structures , towers and guyed masts 对高层建筑、大跨空间结构、高耸塔桅结构等建筑物和构筑物而言,风荷载是结构设计的控制荷载之一。
In this thesis , the problem is taken as engineering background to study the application of semi - active control for wind vibration responses of guyed mast by mr damper 本文以这样一个实际工程中的疑难问题为背景,对mr阻尼器用于桅杆结构风振响应的智能控制问题进行了较为系统的研究。
According to the possible problems in the wind - resistance design of guyed mast and the characteristic of the structure form , the concept of the mr damper - spring system is presented in this paper 根据抗风设计的要求和桅杆结构自身的特点,创新的提出了适合于桅杆结构振动控制的mr阻尼器?弹簧系统。
System imitation analysis in the time domain indicates that the amplitude and peak of displacement at the joint between cable and mast are both reduced , and the fatigue life of guyed mast is increased . adjusting the location of mr damper can efficiently reduce the displacement on the top of guyed mast induced by wind 仿真分析表明可以有效地减小桅杆结构纤绳与杆身连接处的位移响应的幅值与峰值,能提高结构的疲劳寿命,通过调节mr阻尼器的作用位置可以改善对桅杆顶部位移响应的控制效果。