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Influence of tunnel axis stress on mechanical response and fracture characteristics of rock surrounding tunnel subjected to gradient stress
The excavation of deep underground engineering leads to a gradient stress within surrounding rocks in the radial direction of the tunnel. In this...
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使工厂生产更灵活的创新
工业4.0 在现场级别最重要的元素是执行器和传感器。将传感器和执行器与现有基 础设施结合使用, 并以互联网技术为基础, 实现过程的自动化和监控。传感器作为 信息和数据的提供者, 执行器是操作硬件。工业4.0 的 "单件流" 目标要求在执行器 中最快地生成和实现数据。
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Crack propagation behavior in sandstone during unloading confining pressure under different seepage pressures
The unloading confining pressure tests were conducted on sandstone under the seepage pressure to reveal the relationships between the deformation...
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创新成功因素及其影响
尽管企业创新活动的管理存在理论和实践上的差距这类问题，但许多创新还是取 得了成功。
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Rubbing features of the bladed drum rotor under a novel coupled axial-radial thermal effect
High temperatures in a gas turbine may lead to severe blade rubbing failure for the bladed thin drum rotor. It is essential to demonstrate such...
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DEM investigation of strength and critical state behaviours of sand under axisymmetric stress paths with different shearing modes
This paper investigates the strength and critical state (CS) behaviours of sand under axisymmetric stress paths with different shearing modes using...
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Estimating crack closure and damage stress thresholds of rock during uniaxial compression based on axial plastic strain
The quantitative determination of crack stress thresholds is of great significance to comprehend the deformation and failure of rock. In the study,...
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Influence of lateral pressure on mechanical behavior of different rock types under biaxial compression
Lots of field investigations have proven that layer-crack structure usually appears during the excavation process of deep rock or coal mass. To...
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Experimental study on triaxial creep characteristics of the anthracite coal under low confining pressure
The creep characteristics of coal pillars left over from old mining directly affect the long-term stability of underground engineering. To study the...
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Fluid-solid interaction analysis of blood flow in the atherosclerotic carotid artery using the Eulerian-Lagrangian approach
This study aims to simulate pulsatile blood flow in the carotid artery with different stenosis severities and pulse rates. The effects of different...
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创新发展结构条件的影响及其在企业的栓扣
前几节中所叙述的创新的发展过程及其准备情况令局外人震惊。显示的图片与德 国公司的评估不符。这不会改变公司的成功故事。虽然大多数公司的项目都是这 样的
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以轻质结构为例理解仿生学带来的创新
在轻质结构（材料轻型结构设计）中（同样适用于以及其他领域），实质上的技 术创新总是非常费时费力的。因为（a）这需要各个跨学科团队一起的默契的合 作，（b）进行许多步骤（技术成熟度），（c）超越现有的技术标准和企业文化 以及（d）长期的研发投入在中期内达到经济上自给自足。这些特征在特别适用于...
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开发过程是技术产品和工艺的创新过 程的重要组成部分
长期以来，德国技术公司在全球创新的产生中发挥了主导作用。
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Role of inclination angle on columnar-to-equiaxed transition in the eutectic Al-5Mg-2Si alloy fabricated by laser powder bed fusion
In this study, the effect of inclination angles relative to the building direction in the additively manufactured eutectic Al-5Mg-2Si alloy was...
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创新领域
德国的创新和创新管理不仅仅是工业4.0。 它们是其他新的技术发展，将完全改变重要经济部门的结构。 自2009年以来，德国的创新和创新管理这一主题在系列研讨会和项目中为中 国公司的经理和业务管理者以及来自**的市政、地区和国家机关的代表进行了 详细的准备和讨论。
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Strength and failure characteristics of coal measures mudstone specimens containing a prefabricated flaw under true triaxial tests
In this study, a series of coal measures mudstone specimens containing a prefabricated flaw were subjected to true triaxial test (TTT), namely,...
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Nonlinear support loss in micro/nano beam resonators induced by geometric nonlinearity
Support loss, as one of the main energy dissipation sources in micro/nano mechanical resonators, is generally evaluated by linear theories without...
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Mechanical and damage evolution characteristics of granite after heating-cooling cycles
To explore the static mechanical and damage evolution characteristics of hot dry rock, groups of uniaxial compression test and Brazilian splitting...
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Mechanical behavior of backfilled pillar under biaxial loading
Backfilling the pillar to form a pillar-backfill collaborative bearing structure is the key to cut and fill method. The pillar-backfill bearing...
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Combined effect of rock fabric, in-situ stress, and fluid viscosity on hydraulic fracture propagation in Chang 73 lacustrine shale from the Ordos Basin
Shale oil is an important area for the increasing of crude oil reserves and production. Due to the tight structure and ultra-low permeability of...