搜索结果: 1-13 共查到“安全科学技术 failure”相关记录13条 . 查询时间(0.109 秒)
Failure Mechanism of Slope Covered with Shotcrete in a Centrifuge
Failure Mechanism Slope Covered Shotcrete Centrifuge
2013/9/30
The maintenance of slope stabilization works performed during the rapid economic growth period of Japan (1955—1973) has increased in recent years. During that period, slopes were mostly stabilized by ...
Prediction of Slope Failure Using Highly Accurate Tilt Sensors
Prediction Slope Failure Highly Accurate Tilt Sensors
2013/9/30
This paper presents the application of tilt sensors to measure the movements of a slope surface and slope crest just before failure during excavation of the lower parts of the slope. The tilt sensors ...
Failure Mechanism of Mountain Tunnel Cutting Face
Failure Mechanism Mountain Tunnel Cutting Face
2013/9/30
A space generates inside the ground by tunnel excavation and so the stress inside the ground surrounding the tunnel would change. This re-arrangement of stress has been investigated by so-called "trap...
Combined Analyses Procedure of Failure Modes and Risk Phenomena Using the Concept of Normal State Conditions
Failure Modes and Effects Analyses (FMEA) Risk Assessment Design Review System Safety
2013/1/28
Normal failure or risk analyses procedure contains the following steps; 1) modeing process, 2) assessment process of its hazardous extent. 1) Modeling process is the considering procedure that sets th...
Effect of Berm on the Stability of Slope and Its Failure Mode Studied by Rigid-Plastic Finite Element Analysis
Berm on the Stability of Slope Its Failure Mode Studied Rigid-Plastic Finite Element Analysis
2013/9/30
Berms are used to control erosion and scouring by reducing the rate of surface runoff. In addition, the berms are expected to improve the stability of a slope. Regarding the standard for the gradient ...
A new method for explicit modelling of single failure event within different common cause failure groups
Common cause failures Probabilistic safety assessment Fault tree Explicit modelling
2012/4/14
Redundancy and diversity are the main principles of the safety systems in the nuclear industry. Implementation of safety components redundancy has been acknowledged as an effective approach for assuri...
A new method for explicit modelling of single failure event within different common cause failure groups
Common cause failures Probabilistic safety assessment Fault tree Explicit modelling
2012/4/15
Redundancy and diversity are the main principles of the safety systems in the nuclear industry. Implementation of safety components redundancy has been acknowledged as an effective approach for assuri...
A physics-of-failure based reliability and maintenance modeling framework for stent deployment and operation
Stent reliability Physics of failure Fatigue crack growth Single-event overloads Degradation Random shocks Preventive maintenance
2012/4/15
Reliability study of stents becomes extremely important due to the high demand on these devices to counteract the effects of atherosclerosis. Based on the physics-of-failure mechanisms, we propose a p...
A physics-of-failure based reliability and maintenance modeling framework for stent deployment and operation
Stent reliability Physics of failure Fatigue crack growth Single-event overloads Degradation Random shocks Preventive maintenance
2012/4/14
Reliability study of stents becomes extremely important due to the high demand on these devices to counteract the effects of atherosclerosis. Based on the physics-of-failure mechanisms, we propose a p...
Methodology for estimating the probability of failure by sliding in concrete gravity dams in the context of risk analysis
Dam safety Structural reliability Risk analysis Numerical modeling
2012/4/26
Dam safety based on risk analysis methodologies demand quantification of the risk of the dam-reservoir system. This means that, for a given initial state of the system, and for the several failure mod...
Asymptotics for continuous lifetime distributions with polynomial failure rate with an application in reliability
Continuous lifetime distribution Polynomial failure rate Delta method Testing Confidence interval Computer algebra
2012/4/15
This paper is a continuation of work reported by Csenki (2011 [1]), where the coefficients of a polynomial failure rate function of a continuous lifetime distribution were expressed in terms of deriva...
Propagated failure analysis for non-repairable systems considering both global and selective effects
Reliability Failure propagation Failure isolation Global effect Selective effect
2012/4/22
This paper proposes an algorithm for the reliability analysis of non-repairable binary systems subject to competing failure propagation and failure isolation events with both global and selective fail...
An inexpensive estimate of failure probability for high-dimensional systems with uncertainty
Robustness Reliability High-dimensional systems Non-linear systems Crash analysis Bayesian inference
2012/4/26
The failure probability of a system at an uncertain state can be estimated within a precise confidence interval using the Monte-Carlo sampling technique. Using this approach, the number of system para...