Life-cycle cost-based risk assessment of aging bridge networks

The formation and development of the main areas of technical and economic research in the field of aircraft engine building have been considered. A typical structure of the life cycle cost of an aircraft engine has been presented and typical tasks in the field of technical and economic efficiency, solved at different stages of the cycle, have been described. Also the method used to solve these problems at the stage of development work on the creation of the engine has been considered. The purpose of the study is to develop a risk assessment methodology for the creation of an aircraft engine, as well as its software implementation with subsequent integration into an existing design product. At this stage, it is necessary to describe clearly the algorithm that will be the basis for the risk assessment of the aircraft engine development.

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Importance Sampling in Life-Cycle Seismic Fragility and Risk Assessment of Aging Bridge Networks

Lecture Notes in Civil Engineering - Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures ◽

10.1007/978-3-030-91877-4_118 ◽

2021 ◽

pp. 1035-1044

Author(s):

Luca Capacci ◽

Fabio Biondini

Keyword(s):

Risk Assessment ◽

Life Cycle ◽

Importance Sampling ◽

Seismic Fragility ◽

Bridge Networks

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Risk Assessment of Power Transformer Life Cycle Cost Based on Extensible Matter-Element Model

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.644-650.3538 ◽

2014 ◽

Vol 644-650 ◽

pp. 3538-3541

Author(s):

Guo Hua Qiao ◽

Xiang Jun Guo ◽

Lan Min Wu ◽

Hong Liang Liu ◽

Zheng Ren ◽

...

Keyword(s):

Risk Factors ◽

Risk Assessment ◽

Life Cycle ◽

Life Cycle Cost ◽

Cost Management ◽

Power Transformer ◽

Control Strategies ◽

Element Model ◽

Assessment System ◽

Matter Element Model

Making assessment of risk factors of power transformer life cycle cost modeling is an important mean of improving the scientificity of transformer life cycle cost management. Considering the risk factors of transformer life cycle cost, this paper presents risk assessment index system of transformer life cycle cost, applying matter-element model and extension analysis theory to quantify the qualitative indexes in order to assess the risk. Combined with an example, the paper quantifies the uncertain factors of power transformer life cycle cost management in order to build the life cycle cost risk assessment system. It realizes the risk rating of the transformer cost assessment, getting the key risk factors which affect transformer cost so that we can put forward targeted control strategies according to various risk factors in practical engineering.

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Research on Risk Assessment of the Transformer Based on Life Cycle Cost

International Journal of Smart Grid and Clean Energy ◽

10.12720/sgce.2.1.125-131 ◽

2013 ◽

Vol 2 (1) ◽

pp. 125-131 ◽

Cited By ~ 1

Author(s):

Hui Zhou ◽

Guowei Wu ◽

Weiwei Pan ◽

Yunhe Hou ◽

Chong Wang

Keyword(s):

Risk Assessment ◽

Life Cycle ◽

Life Cycle Cost

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Risk Assessment of Substation Main Connection Based on LCC Management

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1070-1072.956 ◽

2014 ◽

Vol 1070-1072 ◽

pp. 956-960

Author(s):

Yan Xu ◽

Chi Cheng ◽

Han Ping

Keyword(s):

Risk Assessment ◽

Life Cycle ◽

Petri Nets ◽

Life Cycle Cost ◽

Cost Management ◽

Fault Tree Analysis ◽

Life Cycle Management ◽

Risk Indicators ◽

Management Approach ◽

Basic Equations

Life-cycle cost management is the foundation and techniques for life-cycle cost management. Petri nets has a graphical expression, can improve and add more features and information to Fault tree analysis, Markov equations and so on, raising the speed and accuracy of the entire system of risk assessment. The paper propose a risk assessment based on the life-cycle management approach, establish four state model to analysis transformer substation main wiring operation, discuss elements occurring planned maintenance events and breaker tripping phenomenon, and propose using the basic equations of Petri nets to determine system status and calculate the corresponding probabilities, quantitative analysis of the outage costs of the substation main connection off for running, and seek the best value under the run. In the example discussing and calculating the risk indicators of outage costs for different wiring schemes, the results demonstrate the feasibility of the proposed algorithm.

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