A Logistics Model of Total Life Cycle of Mechanical Products

2012 ◽  
Vol 248 ◽  
pp. 402-407 ◽  
Author(s):  
Liang He ◽  
Wan Lin Guo
Keyword(s):  
Life Cycle ◽  
Life Cycle Analysis ◽  
Production Capacity ◽  
Stable Production ◽  
Equivalent Quantity ◽  
Aero Engine ◽  
Mechanical Products ◽  
Aero Engines ◽  
Total Life ◽  
Production Resources

A kind of processing strategy of total life cycle of mechanical products was designed. A logistics model of total life cycle of mechanical products was established based on eight typical states of life cycle of mechanical products. The logistics analysis of total life cycle of a sort of aero-engine was carried out by using the model. The dynamic equivalent quantity of the aero-engines in different states of life cycle was obtained when times changed from the products were first put into production to the time when stable production capacity was reached. The model can also be used to predict logistics of other products rapidly. The results give references for production departments or enterprises which use life cycle methods to configure their production resources effectively and optimize production processes, and also provide a basis for further analysis of total life cycle analysis such as economic and environmental assessment.

The Uncertainty Analysis of Health Management Strategies for Aero-Engines

2012 ◽  
Vol 201-202 ◽  
pp. 34-38
Author(s):  
Zhen Hua Wen ◽  
Xin Yin ◽  
Yuan Peng Liu
Keyword(s):  
Health Management ◽  
Management Strategies ◽  
Flight Safety ◽  
Diagnosis And Prognosis ◽  
Uncertainty Sources ◽  
Information Monitoring ◽  
Aero Engine ◽  
Aero Engines ◽  
Fault Diagnosis And Prognosis ◽  
Total Life

The Aero-Engine Is the Heart of an Aircraft and Critical to the Flight Safety and Economy, Health Management in Total Life Cycle for Aero-Engines Is an Effective Way and Is Popularly Employed to Balance the Economy and Safety. however, it Is Difficult to Make Appropriate Health Management Strategies for a Complex System, such as Aero-Engines. Firstly the Uncertainty Source of Fault Diagnosis and Prognosis System Is Explored. then the Primary Uncertainty Sources Including Condition Information, Monitoring and Detection Approaches, Signal Detection, Remaining Lifetime Prediction and Maintenance Strategy-Making, Are Analyzed in this Context. the Corresponding Tactics for Reducing Uncertainty Are Proposed in the Paper, which Provides Essential References for Assisting the Design for Health Management System.

Total-Life-Cycle Analysis of the Low Carbon Building

2012 ◽  
Vol 573-574 ◽  
pp. 740-744
Author(s):  
De Li Yao ◽  
Tong Chen ◽  
Chang Lin Mi
Keyword(s):  
Sustainable Development ◽  
Life Cycle ◽  
Life Cycle Analysis ◽  
Life Cycle Management ◽  
Management Theory ◽  
Low Carbon ◽  
Project Development ◽  
Low Carbon Economy ◽  
Total Life ◽  
Carbon Economy

This paper applies the total-life-cycle management theory to the construction and development of low-carbon buildings, and makes analysis of the implementation ways of low-carbon buildings in various stages of project development. So the low-carbon buildings in china can get sustainable development and the low-carbon economy can be realized rapidly.

Impacts of aero-engine deteriorations on military aircraft mission's effectiveness

2001 ◽  
Vol 105 (1054) ◽  
pp. 685-696 ◽  
Author(s):  
M. Naeem ◽  
R. Singh ◽  
D. Probert
Keyword(s):  
Life Cycle ◽  
Armed Forces ◽  
Life Cycle Costs ◽  
Military Aircraft ◽  
Operational Effectiveness ◽  
Turbine Engine ◽  
Operational Life ◽  
Aero Engine ◽  
Aero Engines ◽  
Economic Developments

Abstract International political and socio-economic developments have led the armed forces of many countries to become more aware of how their increasingly-stringent financial budgets are spent. One major expenditure for military authorities is upon aero-engines, because in-service deterioration in any mechanical device, such as an aircraft's gas-turbine engine, is inevitable. Each deterioration has an adverse effect on the performance and shortens the reliable operational life of the engine, thereby resulting in higher life-cycle costs. For a military aircraft's mission-profiles, the consequences of an aero-engine's deterioration upon the aircraft's operational-effectiveness as well as its fuel consumption and life have been predicted in this project using validated computer-simulations. These help in making wiser management-decisions, so leading to the achievement of improved engine utilisation, lower overall life-cycle costs and optimal mission effectiveness for squadrons of aircraft.

A Material Selection Model of Mechanical Products Based on Total Life Cycle Design

2011 ◽  
Vol 84-85 ◽  
pp. 310-316
Author(s):  
Liang He ◽  
Wan Lin Guo
Keyword(s):  
Life Cycle ◽  
Material Selection ◽  
Transformation Method ◽  
Selection Model ◽  
Design Stage ◽  
Assessment Index ◽  
Early Design Stage ◽  
Life Cycle Design ◽  
Mechanical Products ◽  
Total Life

Material selection in mechanical products based on total life cycle design is a complicated work, which should be studied systematically. A material selection model of mechanical products based on total life cycle design was proposed. A set of candidate materials were screened out, and then assessed according to the technical, economic and environmental assessment index. The candidate materials were ranked by using by using Z-transformation method in each of the assessment index. Different weights were assigned to each of the three assessment indexes, and global assessment was carried out according to different strategies or requirements which pay more attention to technical, economic or environmental performance of the material product used. A case in selecting aircraft structure element material was studied. The analysis results showed that the method could rank the candidate materials and selected out the “optimized material”, and the influence of the subjectivity of designer was reduced. The method provides some practical values for preliminary material selection in the early design stage of the mechanical products based on life cycle design.

Testability Design of the PHM System for Aero-Engines

2012 ◽  
Vol 544 ◽  
pp. 94-98
Author(s):  
Zhen Hua Wen ◽  
Yuan Peng Liu ◽  
Xin Yin
Keyword(s):  
Life Cycle ◽  
Health Management ◽  
Management Strategies ◽  
Prognostics And Health Management ◽  
Technical Approach ◽  
Test Program ◽  
Fusion Methods ◽  
Aero Engines ◽  
Total Life ◽  
Monitoring Information

PHM (Prognostics and Health Management) for Aero-engines is an effective technical approach to balance the economy and safety of the flight in the total life cycle. In this paper, we mainly analyze the popular issues in the process of designing PHM system for aero-engines including the testability design concept, the scheme of condition monitoring and the utilization extent of condition information. Then presents some useful solutions and advices for the testability design respectively; and analyzes the influence of testability on health management strategies and the main source of uncertainty; then propose a roadmap for making test program based on the PHM requirements and evaluating test program, for improve the utilizing degree of monitoring information, we lastly presented common data fusion methods and some typical examples is illustrated.

Estimation of Recoverable Household Waste Cooking Oil and Life Cycle Analysis of Biodiesel Fuel Production

2008 ◽  
Vol 4 (4) ◽  
pp. 318-323 ◽  
Author(s):  
Hirotsugu KAMAHARA ◽  
Shun YAMAGUCHI ◽  
Ryuichi TACHIBANA ◽  
Naohiro GOTO ◽  
Koichi FUJIE
Keyword(s):  
Life Cycle ◽  
Life Cycle Analysis ◽  
Waste Cooking Oil ◽  
Household Waste ◽  
Biodiesel Fuel ◽  
Fuel Production ◽  
Cooking Oil

A Life Cycle Analysis of the Conflicting Military Issues in Korea

2019 ◽  
Vol 28 (1) ◽  
pp. 131-158
Author(s):  
Hanbyeol Yoo ◽  
T.J. Lah
Keyword(s):  
Life Cycle ◽  
Life Cycle Analysis
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