本文選題：控制器 + 可靠性��； 參考：《西北工業(yè)大學(xué)學(xué)報(bào)》2016年03期

【摘要】：可靠性歷來是航空航天領(lǐng)域關(guān)注的焦點(diǎn)之一,可靠性增長(zhǎng)是產(chǎn)品設(shè)計(jì)過程中不斷完善的迭代過程,但大多工作都局限于概念或頂層框架的研究,未涉及具體工程實(shí)現(xiàn)。以道路空——地圖像探測(cè)控制器可靠性增長(zhǎng)設(shè)計(jì)為背景,提出了一種基于電路優(yōu)化的可靠性增長(zhǎng)綜合設(shè)計(jì)方法。通過分析控制器硬件電路結(jié)構(gòu),建立了可靠性結(jié)構(gòu)模型與數(shù)學(xué)模型,根據(jù)模型分析結(jié)論對(duì)控制器基本可靠度較低的D/A結(jié)構(gòu)驅(qū)動(dòng)電路進(jìn)行了優(yōu)化,設(shè)計(jì)了一種基于動(dòng)態(tài)可編程電壓比較器的新型驅(qū)動(dòng)電路。通過可靠性評(píng)估,優(yōu)化后控制器的基本可靠性理論上增長(zhǎng)了33.2%。進(jìn)一步的環(huán)境應(yīng)力篩選等可靠性驗(yàn)證試驗(yàn)表明:通過可靠性增長(zhǎng)設(shè)計(jì)后,控制器不僅滿足了系統(tǒng)功能與性能指標(biāo)及可靠性要求,而且體積、重量、成本等綜合性能也得到了提高。
[Abstract]:Reliability has always been one of the focuses in aerospace field. Reliability growth is an iterative process in the process of product design, but most of the work is limited to the research of concept or top-level frame, and does not involve specific engineering implementation.Based on the reliability growth design of road space-map image detection controller, a comprehensive design method of reliability growth based on circuit optimization is proposed.By analyzing the hardware circuit structure of the controller, the reliability structure model and the mathematical model are established. According to the conclusion of the model analysis, the driver circuit of the D / A structure with low basic reliability of the controller is optimized.A novel driving circuit based on dynamic programmable voltage comparator is designed.Through reliability evaluation, the basic reliability of the optimized controller is increased by 33.2in theory.Further reliability verification tests such as environmental stress screening show that the controller not only meets the requirements of system function and performance and reliability, but also meets the requirements of volume and weight after reliability growth design.Cost and other comprehensive performance has also been improved.
【作者單位】： 西北工業(yè)大學(xué);
【基金】：國(guó)家自然科學(xué)基金(61134004)資助
【分類號(hào)】：V279;V248

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