scholarly journals Development of smart cold forging die life cycle management system based on real-time forging load monitoring

2022 ◽  
Author(s):  
Young Ho Seo
Keyword(s):  
Life Cycle ◽  
Real Time ◽  
Fatigue Failure ◽  
Management System ◽  
Life Cycle Management ◽  
Cold Forging ◽  
Negative Consequences ◽  
Forming Load ◽  
Die Life ◽  
Replacement Cycle

Abstract Cold forging dies are manufactured through the shrink fit process to withstand high pressure loads, but fatigue failure eventually occurs due to repeated compressive stresses. The life cycle until fatigue failure was defined as the limit life, and attempts were made to predict the die life based on finite element method (FEM). However, accurate prediction was impossible owing to uncontrollable environmental variables. Consequently, it is impossible to clearly determine the die replacement cycle, resulting in negative consequences such as poor quality, production delay, and cost increase. Various environmental factors affecting the prediction of die life cycle result in the increase or decrease of the forming load, which is an important variable that determines the die life cycle. In this study, a system for monitoring load data generated from forging facilities was developed based on a piezo sensor. In addition, the die life cycle was more accurately predicted by using the forming load data measured in real time, and a die life management system that can determine the die replacement cycle was applied to the automobile steering parts production line.

scholarly journals Study on life cycle management system for chillers in nuclear power plant

2018 ◽  
Vol 1074 ◽  
pp. 012153
Author(s):  
Jie Yang ◽  
Liang Yuan ◽  
Lin Su ◽  
Qiang Qin ◽  
Rudong Wang
Keyword(s):  
Life Cycle ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Management System ◽  
Nuclear Power ◽  
Life Cycle Management

scholarly journals Managed infrastructure and services to empower meteorological services in developing countries

2021 ◽  
Author(s):  
Tom Smith
Keyword(s):  
Developing Countries ◽  
Life Cycle ◽  
Value Chain ◽  
Life Cycle Management ◽  
Observation Data ◽  
Negative Consequences ◽  
Observation Systems ◽  
Spatial Coverage ◽  
The World ◽  
The Impact

<p>Often in developing countries the spatial coverage with surface weather observations is sparse and the reliability of existing systems is lower than in other parts of the world. These gaps in the availability of observation data have significant negative consequences, locally and globally. For decades international funds have been used to acquire meteorological infrastructure with little to no focus on life-cycle management. Furthermore, improvements in one part of the value chain are often not connected with further downstream services meaning local benefits are generated with substantial delay, if at all.</p><p>DTN is one of the few organizations offering comprehensive solutions across the value chain from deployment and operation of observation systems through to weather analytics creating valuable insights for business, consumers and governments across the globe. DTN not only project manages the setup of weather observation systems but also maintains and operates measurement networks on different continents. The sensor agnostic approach enables us to offer the right sensor solution for each situation.</p><p>We see an opportunity to correct the mistakes of the past, changing the focus from acquiring observation systems to life cycle management to ensure the systems are maintained and leveraged effectively to provide forecasts and warnings for protection of life and property and enabling NMSs to focus on fulfilling their mission.</p><p>Funding organizations such as the World Bank must change the focus from hardware procurement to a performance-based PPE/P model that ensures the value of investments in infrastructure are realized. This sustainable approach will; ensure long lasting partnerships, harness the innovation in the private sector, create local jobs maintaining infrastructure and enable economic development through improved ability to manage the impact of weather and climate events.</p>

Study on Product Life-Cycle Genetic Engineering Theory

2007 ◽  
Author(s):  
Kezheng Huang
Keyword(s):  
Life Cycle ◽  
Genetic Engineering ◽  
Real Time ◽  
Product Life Cycle ◽  
Life Cycle Management ◽  
Product Life ◽  
Engineering Theory ◽  
Conceptual Design Phase ◽  
Physical Form ◽  
Plm System

Widespread IT application leads up to the idea of integrating all the information related with products. It is the ultimate goal to design a product creatively and automatically acquiring all the updated information through close interaction with Product Life-cycle Management (PLM) system starting from conceptual design phase. In this paper, Product Genetic Engineering (PGE) concept for innovative design automation is introduced, and extended to Product Life-Cycle Genetic Engineering (PLCGE) which has genes for downstream processes and can interact with all the real-time information through PLM, and so provides real-time support for PGE decision-making. A basic framework for PLCGE is proposed in which the product development can be divided into two main phases: the generation of product “genome” and the growth of the “genome” into its physical form. In the former phase, the product genome originates from and serves as an extension to human genome, and forms a complete genome through design process dealing with life-cycle factors. In the latter phase, the product genome acquires “protein” to grow inside its mother body (the factory), and PLM system acts as an “umbilical cord” between the product genome and its mother body. Finally, a case study of PLCGE application in Mass Customization is made for validity of PLCGE.

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