排序方式: 共有158条查询结果,搜索用时 15 毫秒
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复合载体夯扩桩的低应变检测 总被引:3,自引:3,他引:0
介绍复合载体夯扩桩的构造、受力特点及地基加固原理。依据某工程实例,综合分析了复合载体夯扩桩低应变反射曲线特点,提出桩体质量的低应变检测及评价应包括上部直杆体、上部直杆体和夯扩体的接触密实性以及夯实干硬性混凝土的施工质量3个方面的内容。 相似文献
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寇建设 《铁路通信信号工程技术》2005,(5):21-23
叙述了T.JK4-50型车辆减速器的开发原则,以及提高疲劳强度和降低维修量的理论和方法, 并介绍了现场实际使用情况。 相似文献
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对ZD(J)9新型电动转辙机摩擦联结器的作用及设计思路、计算过程作了简要的阐述,特别对其性能进行了分析。 相似文献
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温福铁路田螺大桥设计 总被引:3,自引:3,他引:0
寇延春 《铁道标准设计通讯》2005,(11):25-28
温福铁路田螺大桥为一座跨海湾大桥,主跨为(88+160+88)m预应力混凝土连续刚构,介绍主跨构造及结构计算,重点进行梁体后期下挠控制和抗裂分析,分析了客运专线大跨度连续刚构设计的关键技术和对策。 相似文献
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本文介绍了一种鲁棒性强,易于在单片机上实现的自校正PID控制算法,并详细论述了该算法的计算步骤和实现过程。该算法对工业过程控制系统有较强的适用性。 相似文献
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The asymmetric deformation and eccentricity problems of near hemispherical diaphragm under the uniform surface load are quantitatively
characterized in the paper. The analysis is based on a 3D finite element analysis (FEA) model established according to elastic-plasticity
and large displacement nonlinear finite element method. Besides, the deformation experiments are taken to validate the reliability
of FEA model which shows that the simulation results are in good agreement with the experimental results. Then, three angle
parameters, deflection angle β, circumvolving angle θ and distributing angle γ, are introduced and expressed to characterize the asymmetric deformation and eccentricity quantitatively. According to the
angle parameters, the inversion processes of uniform thickness diaphragm and varying thickness diaphragm are calculated respectively.
The inversion process of varying thickness diaphragm is much steadier than that of uniform thickness diaphragm. The present
results show that the asymmetric deformation process can be characterized by curve of three angle parameters (β, θ, γ) exactly, the degrees of eccentricity can be indicated by the final value of deflection angle and the eccentricity position
can be characterized by the final values of the three angle parameters. 相似文献