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學(xué) 號(hào): 08L0603119 外文出處: Science Direct 附 件: ; 。 本文介紹了注塑模具基于因特網(wǎng)的智能設(shè)計(jì)的一種原型。該系統(tǒng)的知識(shí)基礎(chǔ)是通過(guò)互動(dòng)過(guò)程訪問(wèn)模具設(shè)計(jì)師而獲得,這樣也可以使他們自己的智慧和經(jīng)驗(yàn)納入總的模具設(shè)計(jì)。由于它能夠 生產(chǎn) 復(fù)雜形狀的塑料部件,具有良好的尺寸精度和很短的 生產(chǎn) 周期,今天注射成型已成為塑料工業(yè) 中 用于制造塑料零 部 件最重要的 工藝 過(guò)程。在大多數(shù)情況下 ,模具質(zhì)量負(fù)責(zé)經(jīng)濟(jì)學(xué)的整個(gè)過(guò)程。不幸的是 ,對(duì)于 這些經(jīng)驗(yàn)豐富的設(shè)計(jì)師 來(lái)說(shuō), — 2 — 要滿足不斷升級(jí)的市場(chǎng)需求是不可能的 。在產(chǎn)品開發(fā)過(guò)程 中,涉及的 各方 面 需要分享他們的專業(yè)知識(shí)和經(jīng)驗(yàn)。該系統(tǒng)可以縮短注塑模具 的 設(shè)計(jì)周期,可以有效地幫助小型和中等規(guī)模企業(yè) 中 注塑模具 的 設(shè)計(jì)和開發(fā)工作 ,從而緩解 當(dāng)前競(jìng)爭(zhēng)激烈的世界市場(chǎng) 中 日益增長(zhǎng)的壓力 。由圖我們可知,如何相互關(guān)聯(lián)的條件和邊界條件與次級(jí)條件必須滿足的主要功能。為了消除模制過(guò)程中產(chǎn)生的熱量,我們有必要給模具提供一個(gè)冷卻系統(tǒng)。模具結(jié)構(gòu)通常涉及選擇標(biāo)準(zhǔn)模架和模具配件。我們可以將其廣泛的分為三個(gè)方面:功能性和初始模具設(shè)計(jì);該 算法自動(dòng)生成模具;模具設(shè)計(jì)的系統(tǒng)發(fā)展。富等人提出一種高效的方法系統(tǒng)介紹了側(cè)凹特征的定義、分類、特征參數(shù)取值和注射模具設(shè)計(jì)系統(tǒng)中所有側(cè)凹類型的確認(rèn)條件。鄭和李提出了注塑成型協(xié)同設(shè)計(jì)環(huán)境的一個(gè)框架,它指出各個(gè)區(qū)域分布的各學(xué)科設(shè)計(jì)人員可以相互合作。李等人運(yùn)用圖像技術(shù)發(fā)展了一種啟發(fā)式搜 索算法,使得塑料注射模具冷卻系統(tǒng)的布局設(shè)計(jì)自動(dòng)操作。為了注塑模具設(shè)計(jì),我們開發(fā)了 CADFEED。從以上的回顧可以看出,大多數(shù)以前的工作,認(rèn)為只有總體設(shè)計(jì) 的 某些方面 和 其中一些 太過(guò) 理論 化而不能 應(yīng)用 于 實(shí)際模具設(shè)計(jì), 它 涉及大量 關(guān)于模具 功能和結(jié)構(gòu)的實(shí)用知識(shí),人類啟發(fā)式知識(shí)和經(jīng)驗(yàn)型知識(shí)。傳統(tǒng)計(jì)算機(jī)輔助工程軟件包 的優(yōu)勢(shì)在于密集信息問(wèn)題的數(shù)據(jù)處理或?qū)γ芗交瘑?wèn)題的數(shù)量控制。 一般來(lái)說(shuō) ,對(duì)于模具設(shè)計(jì), KB 系統(tǒng)較 傳統(tǒng)計(jì)算機(jī)輔助設(shè)計(jì)系統(tǒng) 的優(yōu)勢(shì)在于它表述明確是一個(gè)知識(shí)機(jī)構(gòu)的操作系統(tǒng),代表著人類的智慧。 系統(tǒng)架構(gòu) 圖 2 基于互聯(lián)網(wǎng)的模具設(shè)計(jì)系統(tǒng) 的結(jié)構(gòu) 根據(jù)實(shí)際模具設(shè)計(jì)程序和在這一階段需要考慮的問(wèn)題, 推薦 基于互聯(lián)網(wǎng)的智能注射模具設(shè)計(jì)系統(tǒng)的 結(jié)構(gòu) 如圖 2 所示。所有的 設(shè)計(jì)活動(dòng)是有組織的七個(gè)功能模塊, 它們是 型 — 6 — 腔布局設(shè)計(jì) 、 進(jìn)料設(shè)計(jì) 、 散熱設(shè)計(jì) 、 模具制造 、 模具頂出設(shè)計(jì) 、模架 的選擇 和標(biāo)準(zhǔn)件的選擇。一個(gè) Java 功能的解決方案與人工智能技術(shù) 結(jié)合起來(lái) 是用來(lái)建立這樣一個(gè)網(wǎng)絡(luò)的交互式計(jì)算機(jī)輔助設(shè)計(jì)系統(tǒng)。 — 7 — 附件 2:外文原文 (復(fù)印件) Abstract The rapid growth of Inter and information technologies in recent years provides a solution to support and facilitate collaborative product developments among different geographically distributed enterprises. An effective and feasible tool to aid the collaborative development of injection moulds can be realized by developing an Interbased mould design system as one of the modules of a collaborative product development system. This paper presents a prototype Interbased intelligent design system for injection moulds. The architecture of the system consists of an interactive KB mould design system embedded in an Inter environment. A Javaenabled solution together with artificial intelligence techniques is employed to develop such a worked interactive CAD system. In this system, the putational module, the knowledge base module and the graphic module for generating mould features are integrated within an interactive CADbased framework. The knowledge base of the system would be accessed by mould designers through interactive programs so that their own intelligence and experience could also be incorporated with the total mould design. The approach adopted both speeds up the design process and facilitates design standardization which in turn increases the speed of mould manufacture. A practical case study is presented to illustrate the operations of the Interbased mould design system. 2020 Elsevier Ltd. All rights reserved. 1. Introduction Plastic, which is one of the most versatile in the modern age, is widely used in many products throughout the world. Due to its ability to produce plex shape plastic parts with go od dimensional accuracy and very short cycle times, injection moulding has bee the most important process for manufacturing plastic parts in the plastic industry today. However, the current plastics industry is under great pressure, due to the globalization of the market, the short life cycle of pro duct development, increasing product diversity, high demand of product quality. To meet such requirement s, it is very important for this trade to adopt various advanced technologies which include information and Intern et technology, CAD/ CAE/C AM integration technology, concurrent engineering, artificial intelligence, and so on, to effectively aid the development of injectionmoulded product. In injection moulding, the design of a mould is of critical importance for pro duct quality and efficient processing. In most cases, quality of mould is responsible for the economics of the entire process . Injection mould design involves extensive empirical knowledge (heuristic knowledge) about the structure and functions of the ponents of the mould. Nowadays, mould design faces with increasing deadline pressures and the design its elf is predominantly ba sed upon experience of the mould designer. Mould designers are required to possess thoroug