【摘要】：隨著全球經(jīng)濟(jì)、技術(shù)的飛速發(fā)展,機(jī)電產(chǎn)品日益大型化、復(fù)雜化、應(yīng)用廣泛化。傳統(tǒng)的依據(jù)以往的經(jīng)驗(yàn)教訓(xùn)亡羊補(bǔ)牢式的產(chǎn)品安全性設(shè)計(jì)方法已經(jīng)不能滿(mǎn)足人們?nèi)找嬖鲩L(zhǎng)的對(duì)產(chǎn)品安全性的要求,同時(shí)也承受不起因之帶來(lái)的巨大損失。因此,在設(shè)計(jì)階段通過(guò)科學(xué)的安全性分析與風(fēng)險(xiǎn)評(píng)價(jià),使全壽命周期各階段安全風(fēng)險(xiǎn)達(dá)到可接受水平,已成為產(chǎn)品質(zhì)量乃至系統(tǒng)安全性研究者重點(diǎn)關(guān)注的內(nèi)容之一。 為了更好地提高產(chǎn)品安全性,出現(xiàn)了本質(zhì)安全的相關(guān)研究。本論文在原有安全性量化研究的基礎(chǔ)上,針對(duì)以往產(chǎn)品安全性量化、評(píng)價(jià)存在的對(duì)產(chǎn)品本質(zhì)安全化程度考慮不充分等相關(guān)問(wèn)題,對(duì)機(jī)電產(chǎn)品本質(zhì)安全度進(jìn)行了研究。 本文首先在已有本質(zhì)安全研究的基礎(chǔ)上,提出了本質(zhì)安全度的概念,并分析了其內(nèi)涵;以物質(zhì)的危險(xiǎn)性、結(jié)構(gòu)的復(fù)雜度和關(guān)鍵件的可靠度為指標(biāo),給出了本質(zhì)安全度的定性分級(jí)模式;其次,針對(duì)有安全裝置的產(chǎn)品,利用模糊理論確定安全裝置某種故障模式最可能發(fā)生的故障狀態(tài),重點(diǎn)分析了該狀態(tài)下殘余的安全功能對(duì)產(chǎn)品事故發(fā)生的影響,同時(shí)借助故障樹(shù)分析方法,建立了產(chǎn)品本質(zhì)安全度的量化模型;此外,分析了安全裝置對(duì)產(chǎn)品本質(zhì)安全度的影響,并給出了影響程度的計(jì)算過(guò)程,為安全裝置的選擇提供了依據(jù)。從而為產(chǎn)品安全性設(shè)計(jì)方案的選擇提供理論依據(jù)和方法,亦可為建立全面的、科學(xué)的產(chǎn)品安全性評(píng)價(jià)體系奠定理論基礎(chǔ)。最后,以電梯為例,通過(guò)對(duì)其本質(zhì)安全度的求取,驗(yàn)證了本論文研究?jī)?nèi)容的可應(yīng)用性。
[Abstract]:With the rapid development of global economy and technology, mechanical and electrical products are becoming more and more large, complicated and widely used. The traditional product safety design method, which is based on the past experience and lessons, can not meet the increasing demand of product safety, and at the same time, it can not afford the huge loss. Therefore, through scientific safety analysis and risk evaluation in the design phase, it has become one of the key concerns of product quality and system safety researchers to make the safety risk of the whole life cycle reach the acceptable level. In order to improve the safety of products, there has been related research on essential safety. On the basis of the original safety quantification research, this paper studies the intrinsic safety degree of mechanical and electrical products, aiming at the related problems of product safety quantization in the past and evaluating the degree of product essential safety. On the basis of the existing research on essential safety, the concept of essential safety degree is put forward in this paper, and its connotation is analyzed, which is based on the risk of substance, the complexity of structure and the reliability of key parts. The qualitative classification model of the essential safety degree is given. Secondly, the fuzzy theory is used to determine the most likely fault state of a certain fault mode of a safety device for a product with a safety device. The influence of residual safety function on the occurrence of product accidents is analyzed, and the quantitative model of product essential safety degree is established by means of fault tree analysis, and the influence of safety device on product essential safety degree is analyzed. The calculation process of the influence degree is given, which provides the basis for the selection of safety device. Thus it can provide theoretical basis and method for the selection of product safety design scheme, and also lay a theoretical foundation for the establishment of a comprehensive and scientific product safety evaluation system. Finally, taking elevator as an example, the applicability of the research content is verified by calculating the intrinsic safety degree of elevator.
【學(xué)位授予單位】：沈陽(yáng)航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類(lèi)號(hào)】：TH122;TH-39

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 文欽弘;楊博欽;;乘用車(chē)本質(zhì)安全度評(píng)價(jià)模式研究[J];沈陽(yáng)理工大學(xué)學(xué)報(bào);2013年01期

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本文編號(hào)：2194634