We think that the method of estimating maximal pre-applied stress of the working bolt can provide a reference for preventing further fatigue fracture of boxter bolts.
认为用估算螺栓工作时的最大预紧应力的方法,对防止埋头螺栓疲劳断裂再次重复发生有一定的参考价值。
On the basis of relationship between bolt axial stress and rate of change in ultrasonic wave transmission time, the author has developed a device to directly measure axial stress in bolts.
根据螺栓的轴向应力与超声波传播时间变化率的关系,作者研究了一种可直接测量螺栓轴向应力的仪器。
The composite stress factor and pre-tensile force loss of the two diameter high strength bolts of M27 and M24 are experimentally determined in the paper.
本文对M27和M24两种直径高强度螺栓进行了复合应力系数测定和预拉力损失试验。
The role of bolts is to improve the performance of the structural mass, weaken the stress intensity at the crack tips and increase the crack propagating loads.
锚杆作用可增强结构体的力学性能,降低裂纹尖端的应力集中现象,提高裂纹尖端裂纹的起裂荷载;
Because of the passivity action of systematic bolts and the heterogeneity of rock mass deforming, systematic bolts have different stress in different position.
由于系统锚杆作用的被动性和边坡岩体变形的非均匀性,使得不同位置的锚件的应力出现较大的差别。
The further excavation of underground powerhouse will affect the stress distribution of system bolts and rock mass near crane girder.
地下厂房的继续开挖对于吊车梁系统锚杆和周围岩体的应力分布有较大影响。
The stress analysis on cylinder head bolts linking of diesel engine was made.
对柴油机气缸盖螺栓联接的受力进行了分析。
Special measures are taken to ensure uniform pressure on the 6 stress bolts.
采用特殊工艺措施保证6根应力螺杆上施加足够且均匀的应力。
This paper focuses on the effects of the distributed bolts and bolt-holes on the shell flange-end bending stress, and suggests a more practical calculation model on shell-end stress.
本文着重分析了离散分布的螺栓及螺栓孔对筒体端部应力的影响,对筒体端部的应力计算提出了一个更接近实际的计算模型。
For the convenience of casting, machining, transporting, etc, the beam of large-scale hydraulic forging press has always been designed as combined structure and connected with pre-stress bolts.
大型液压机的横梁由于铸造、加工、运输等原因,大多设计成组合结构,采用预紧螺栓组连接。
Nondestructive detection of stress wave in anchorage bolts is a kind of quick and effective detection method.
应力波法锚杆加固无损检测是一种快速、有效的无损检测方法。
Monitoring of the stress distribution along anchor bolts is a critical issue for ground anchorage engineering.
对锚杆应力分布状态的监测一直是岩土锚固工程中的难题之一。
The results show that bolts can offer both stress constraint and displacement constraint to rock mass, and provide a basis for support design and stability...
揭示了锚杆对岩体提供应力和位移约束机理。从而为深部不稳定巷道的支护设计与稳定性分析提供了依据。
The results show that bolts can offer both stress constraint and displacement constraint to rock mass, and provide a basis for support design and stability...
揭示了锚杆对岩体提供应力和位移约束机理。从而为深部不稳定巷道的支护设计与稳定性分析提供了依据。
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