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Design on system reliability optimi-zation based on the spare parts’ cost of life cycle

Shao Songshi,Li Qingmin and Li Hua

Strategic Study of CAE 2015, Volume 17, Issue 5,   Pages 25-30

Abstract: We employ a simple calculation method of the spare parts’cost based on the estimation for spareparts demand during the whole life cycle， in the condition of two kinds of nonlinear reliability-priceresearch system reliability allocation optimization as the goal of minimizing the sum of system price and spareparts cost.The system reliability optimization scheme， which based on the spare parts’cost of life cycle，

Keywords： life cycle；the cost of spare parts；reliability optimization；series-parallel system；genetic algorithm    

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Modeling and optimization for multi-echelon spares inventory configuration with lateral transshipments

Ruan Minzhi and Liu Renyang

Strategic Study of CAE 2015, Volume 17, Issue 5,   Pages 106-112

Abstract: Take the equipment availability as constraint and spares cost as objective， the spares inventory is optimized

Keywords： lateral transshipments；multi-echelon maintenance supply；spare parts；marginal optimization；support effectiveness    

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Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0724-0

Abstract: fusion (L-PBF) is an attractive approach because its layering principle enables the fabrication of partswith a discussion on the challenges and prospects for improving the interior surface quality of L-PBF parts

Keywords： laser-based powder bed fusion     polishing     internal structures     surface quality     surface features     post process     additive manufacturing    

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Fixturing technology and system for thin-walled parts machining: a review

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0711-5

Abstract: During the overall processing of thin-walled parts (TWPs), the guaranteed capability of the machining

Keywords： thin-walled part (TWP)     fixture     machining     fixture categories     fixture function    

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Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 48-52 doi: 10.1007/s11465-018-0493-y

Abstract:

Three types of near-net shape casting aluminum parts were investigated by computed tomography to determineThe first, second, and third parts were produced by low-pressure die casting (Al-12Si-0.8Cu-0.5Fe-0.9Mgdefects indicates that semi-solid casting could produce high-quality near-net shape casting aluminum partscomputed tomography is an efficient method to determine casting defects in near-net shape casting aluminum parts

Keywords： near-net shape casting     aluminum parts     casting defects     low pressure die casting     die casting     semi-solid    

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Forecast method for used number of parts and components based on complex network

LIU Fu-yun, QI Guo-ning, YANG Qing-hai

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 479-484 doi: 10.1007/s11465-006-0064-5

Abstract: A forecast method for the increment of component numbers and parts based on the increment of products

Keywords： complex network     industrial     component     analytic expression     forecast    

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The prediction technology study of fatigue life for key parts of a tracked vehicle’s suspension system

WANG Hongyan, RUI Qiang, HE Xiaojun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 68-71 doi: 10.1007/s11465-007-0011-0

Abstract: In allusion to fatigue life of a tracked vehicle torsion bar, a virtual prototype model of the tracked vehicle suspension system including a flexible torsion bar was built based on dynamic simulation software ADAMS. Node force and stress results of the torsion bar from last step simulation were acquired; taking into account the material characteristics and influential factors, fatigue life of the flexible body of the torsion bar was predicted. Engineering results can be acquired through the contrast of the result of virtual test and statistical fatigue.

Keywords： dynamic simulation     simulation software     allusion     influential     material    

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Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0737-8

Abstract: melting (SLM) is a unique additive manufacturing (AM) category that can be used to manufacture mechanical partsas-built part, including its part accuracy, surface roughness, support structure, and build time and costThis study proposes a method to determine the build orientation of multi-feature mechanical parts (MFMPs

Keywords： selective laser melting (SLM)     build orientation determination     multi-feature mechanical part (MFMP)     fuzzy analytical hierarchy process     multi-objective decision making (MODM)    

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Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 17-26 doi: 10.1007/s11709-016-0369-3

Abstract: This study developed an integrated life-cycle cost analysis (LCCA) model to quantify the impact of pavementpreservation on agency cost and vehicle operation cost (VOC) and analyzed the optimal timing of preservationtraffic loading and the initial IRI value significantly affects life extension and the benefit of agency costThe benefit in VOC is one to two orders greater in magnitude as compared to the benefit in agency costtiming calculated based on VOC is always earlier than the optimal timing calculated based on agency cost

Keywords： pavement preservation     life-cycle cost analysis     agency cost     vehicle operation cost    

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Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

Xiaohui Chi, Yeling Chen, Mingfeng Liao, Fei Cao, Yuke Tian, Xueren Wang

Frontiers of Medicine 2012, Volume 6, Issue 3,   Pages 311-316 doi: 10.1007/s11684-012-0205-7

Abstract:

In the current study, we assessed and evaluated the costs and benefits of three popular methods of general anesthesia practiced in our department for gynecological laparoscopic surgery in recent years. Sixty adult female patients who underwent elective gynecological laparoscopic surgery under general anesthesia were randomly divided into three groups: group V, group I and group C. In group V, anesthesia was induced intravenously with midazolam, remifentanil, propofol and vecuronium, and maintained with continuous infusion of propofol and remifentanil. In group I, anesthesia was intravenously induced with midazolam, fentanyl, propofol and vecuronium, and maintained with inhaled isoflurane and intravenous bonus of fentanyl. In group C, anesthesia was induced as in group I, but maintained with isoflurane inhalation combined with propofol-remifentanil infusion. All patients received vecuronium for muscle relaxation. Perioperative incidences of complications and total anesthesia costs for patients in all groups were recorded. In addition, postoperative satisfaction of the patients was also noted, and similar outcomes of the satisfaction were reported in all 60 patients. Although there was no statistical significance among groups, the incidence of postoperative nausea and vomiting were higher in group C, and the rates of shivering and the needs for analgesics were higher in group V. Anesthesia costs in group I were the lowest. Therefore, it is concluded that the costs of anesthesia induced with midazolam, fentanyl, propofol, vecuronium, and maintained with isoflurane, fentanyl and vecuronium are cheapest, and there is no significant difference in patients’ satisfaction and safety among the three above-mentioned methods of anesthesia in our department.

Keywords： general anesthesia     economics     cost    

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Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 412-427 doi: 10.1007/s11708-023-0879-3

Abstract: storage technology has the potential to reduce CO2 emissions, but its carbon footprint and costNext, the levelized cost of direct-coal-to-liquid is 648–1027 $/t of oil, whereas that of indirect-coal-to-liquidWhen coupled with the carbon capture utilization and storage technology, the levelized cost of direct-coal-to-liquidtransportation distance has the greatest impact on carbon footprint, while coal price and initial investment costsignificantly affect the levelized cost of coal-to-liquid.

Keywords： coal-to-liquid     carbon capture     utilization and storage (CCUS)     carbon footprint     levelized cost of liquid    

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and properties between selective laser melting and traditional manufacturing for fabrication of metal parts

Bo SONG,Xiao ZHAO,Shuai LI,Changjun HAN,Qingsong WEI,Shifeng WEN,Jie LIU,Yusheng SHI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2,   Pages 111-125 doi: 10.1007/s11465-015-0341-2

Abstract: (SLM), as one of the additive manufacturing technologies, is widely investigated to fabricate metal partsIn SLM, parts are manufactured directly from powders in a layer-by-layer fashion; SLM also provides severaladvantages, such as production of complex parts with high three-dimensional accuracy, compared with

Keywords： selective laser melting     microstructure     performance     application    

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Floating production storage and offloading systems’ cost and motion performance: A systems thinking application

Rini NISHANTH, Andrew WHYTE, V. John KURIAN

Frontiers of Engineering Management 2018, Volume 5, Issue 3,   Pages 357-368 doi: 10.15302/J-FEM-2018022

Abstract: thinking gives a unique opportunity to seek a balance between FPSO technical performance(s), with whole-costfit-for-use design specification options’ that address technical-motion(s), with respective life-cycle costperiods-of-time by diagnosing the problem-at-hand; namely, assessing the antecedents of life-cycle costbeen performed to generate FPSO motion in six degrees of freedom using SESAM DeepC, while life-cycle costLCCA data has been generated to compare the cost of such different mooring options/hull conditions over

Keywords： FPSO     LCCA     spread/turret-mooring     DeepC     cost     motion     soft-systems    

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High precision installation technology of metal structure embedded parts of Three Gorges Project ship

Wei Shuman,Zhang Weiming and Li Chenzhi

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 87-90

Abstract: ;">Based on the layout characteristics of the first-stage and second-stage metal structure embedded partsGorges Project have solved many technological problems, such as the deformation control of the embedded parts

Keywords： ship lift     metal structure embedded parts     high precision     installation technology     Three Gorges Project    

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Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 133-150 doi: 10.1007/s11465-020-0610-6

Abstract: Surface accuracy directly affects the surface quality and performance of mechanical parts.hole, especially spatial non-planar hole set is the typical feature and working surface of mechanical partsThis study proposes a surface accuracy optimization approach for mechanical parts with multiple circular

Keywords： surface accuracy optimization     multiple circular holes     additive manufacturing (AM)     part build orientation     triangular fuzzy number (TFN)     digital twins    

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Title Author Date Type Operation

Design on system reliability optimi-zation based on the spare parts’ cost of life cycle

Shao Songshi,Li Qingmin and Li Hua

Journal Article

Modeling and optimization for multi-echelon spares inventory configuration with lateral transshipments

Ruan Minzhi and Liu Renyang

Journal Article

Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Journal Article

Fixturing technology and system for thin-walled parts machining: a review

Journal Article

Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Journal Article

Forecast method for used number of parts and components based on complex network

LIU Fu-yun, QI Guo-ning, YANG Qing-hai

Journal Article

The prediction technology study of fatigue life for key parts of a tracked vehicle’s suspension system

WANG Hongyan, RUI Qiang, HE Xiaojun

Journal Article

Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Journal Article

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Journal Article

Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

Xiaohui Chi, Yeling Chen, Mingfeng Liao, Fei Cao, Yuke Tian, Xueren Wang

Journal Article

Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Journal Article

and properties between selective laser melting and traditional manufacturing for fabrication of metal parts

Bo SONG,Xiao ZHAO,Shuai LI,Changjun HAN,Qingsong WEI,Shifeng WEN,Jie LIU,Yusheng SHI

Journal Article

Floating production storage and offloading systems’ cost and motion performance: A systems thinking application

Rini NISHANTH, Andrew WHYTE, V. John KURIAN

Journal Article

High precision installation technology of metal structure embedded parts of Three Gorges Project ship

Wei Shuman,Zhang Weiming and Li Chenzhi

Journal Article

Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Journal Article