【摘要】：串行迭代模型中信息不確定性導(dǎo)致任務(wù)的迭代返工,增加了任務(wù)的總執(zhí)行時(shí)間。針對(duì)這一問(wèn)題,通過(guò)對(duì)上、下游串行任務(wù)執(zhí)行過(guò)程的分析,得出造成信息不確定性的主要原因,確定信息不確定度函數(shù),構(gòu)建考慮信息不確定性的串行迭代時(shí)間模型。進(jìn)而通過(guò)對(duì)該模型的分析得到任務(wù)間的依賴關(guān)系指數(shù)和上、下游設(shè)計(jì)人員間的交流次數(shù)對(duì)迭代返工時(shí)間的影響規(guī)律,從而為縮短產(chǎn)品開發(fā)過(guò)程中任務(wù)的迭代返工時(shí)間和總執(zhí)行時(shí)間提供了理論參考。以某機(jī)械產(chǎn)品的開發(fā)項(xiàng)目為例,驗(yàn)證了模型的有效性。
[Abstract]:In the serial iterative model, the information uncertainty leads to the iterative rework of the task, which increases the total execution time of the task. In order to solve this problem, through the analysis of the execution process of upstream and downstream serial tasks, the main causes of information uncertainty are obtained, the information uncertainty function is determined, and the serial iterative time model considering information uncertainty is constructed. Then, through the analysis of the model, the influence of inter-task dependency index and the number of communication between downstream designers on iterative rework time is obtained. This provides a theoretical reference for shortening the iterative rework time and total execution time of tasks in the process of product development. Taking the development project of a mechanical product as an example, the effectiveness of the model is verified.
【作者單位】： 三峽大學(xué)機(jī)械與動(dòng)力學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51475265)
【分類號(hào)】：TH16
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本文編號(hào)：2472123