Research on optimization of schedule - cost risk for r amp; d project 項(xiàng)目進(jìn)度費(fèi)用風(fēng)險優(yōu)化的研究
Compared with manual method , it takes only five minutes to establish a schedule by means of the model . meanwhile , optimization of schedule can be a scheme that can save the time of process from smelting to continuous casting 利用煉鋼連鑄生產(chǎn)調(diào)度仿真時間petri網(wǎng)模型制定調(diào)度計劃所需的時間為5分鐘;優(yōu)化調(diào)度計劃可以提供一種縮短煉鋼連鑄工藝流程作業(yè)時間的方案。
Based on national defense foundation scientific research project - reserch on technology of agile manufacture , the paper discusses running characteristic of the virtual enterprise , and summarizes the basic conception and theory of project management and the key technology which is used in designing the project management systems . the article offers hierarchy model and rule that describes the project in virtual enterprise . combining the characteristic of project management under the situation of virtual enterprise , the paper analyses project management systems architecture and adopts graphic means to found task flow model , realizes multi - object optimization of scheduled plan 本文結(jié)合國防基礎(chǔ)科研項(xiàng)目一敏捷化虛擬制造技術(shù)研究,分析了虛擬企業(yè)的運(yùn)行特點(diǎn),概述了項(xiàng)目管理及其支撐技術(shù)的概念和理論,結(jié)合虛擬企業(yè)環(huán)境下項(xiàng)目管理的特點(diǎn),給出了虛擬企業(yè)環(huán)境下項(xiàng)目的層次結(jié)構(gòu)模型及其描述規(guī)則,并分析了項(xiàng)目管理系統(tǒng)體系結(jié)構(gòu),采用圖形化方法建立了任務(wù)流模型,運(yùn)用最小時差和最小ls優(yōu)化法,實(shí)現(xiàn)了進(jìn)度計劃的多目標(biāo)優(yōu)化。
For example , it is difficult to ensure the reasonability of schedule risk analysis object and topn schedule risk factors , the optimization of schedule plan is always broken by schedule risk management measures , and few researches fully considered activity iteration and overlapping in r & d project . to solve these problems , this thesis takes schedule risk analysis process integration as guidelines , presents a r & d project schedule risk analysis method based on process integration ( srabpi ) , which provides a new way and new methods for schedule risk analysis of r & d project . the main contents and fruits of this thesis are outlined as follows : firstly , srabpi idea is presented and srabpi framework is constructed from several aspects such as body , connotation , processes , methods , management organization , and relations between srabpi and project risk management 本文針對經(jīng)典進(jìn)度風(fēng)險分析方法中存在的進(jìn)度風(fēng)險分析對象的合理性難以保證、 topn進(jìn)度風(fēng)險因子選擇難和進(jìn)度風(fēng)險管理措施影響進(jìn)度計劃最優(yōu)性等普遍性的問題,綜合考慮研發(fā)項(xiàng)目活動迭代和重疊等特點(diǎn),以進(jìn)度風(fēng)險分析的過程集成為指導(dǎo)思想,研究提出一套基于過程集成的研發(fā)項(xiàng)目進(jìn)度風(fēng)險分析( srabpi )方法,為研發(fā)項(xiàng)目進(jìn)度風(fēng)險分析提供了新的途徑和新方法,論文的研究內(nèi)容和主要貢獻(xiàn)如下:首先,提出研發(fā)項(xiàng)目srabpi思想并從主體、內(nèi)涵、過程、方法、組織管理及其與項(xiàng)目風(fēng)險管理的關(guān)系等多個方面構(gòu)建了srabpi框架。