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材料制備機械設(shè)計理論中的新趨勢和新問題機械設(shè)計制造專業(yè)畢業(yè)設(shè)計外文翻譯-中英文對照(專業(yè)版)

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【正文】 因為在控制模型中多種交互作用的存在,根據(jù)退耦控制模型而建立綜合框架是必要的;精確的控制基于綜合技術(shù)。它們影響著材料加工設(shè)備抗摩擦裝置的成型。 ( 3)原料加工處理正在向高速、重載和高精度在線控制方向上邁進。 extraordinary physical field。功能材料 1. 機械材料 加工的時代背景 在人類進步的一段長時間范圍內(nèi),許多工具、機械和方法被提出來;不同的原料用不同的工具來加工。產(chǎn)品的精確度指數(shù)可以列舉如下:宏觀上精確度可達(dá)到 ,微觀上的晶狀體結(jié)構(gòu)非常均勻,濃度誤差在 。 負(fù)荷分配規(guī)律 關(guān)于超靜定結(jié)構(gòu),抑制點的負(fù)荷分配規(guī)律由相容性條件決定。 。在強壓力場環(huán)境下,接觸式和非線性摩擦將會產(chǎn)生;因此將會導(dǎo)致局部的永久的變形和不好的因素。 ( 3)有能力精確的控制原料加工而獲得低損耗、高功率、高性能的原料加工。超常物理場 。 function material 1 The Time Background of Material Processing Machine In the long span of history of human progress ,many tools ,machines and methods were created and a variety of materials with different properties were processed. Materials and its processing have bee one of pillar and driving force of mankind progress. In pace with multi polar petition in current world and people’ s striving perseveringly for happier life ,material function goes beyond unceasingly men’s knowledge and imagination ,for example ,cryptic function material ,semiconductor material ,energy material ,vibration absorptive material , super strength aluminum alloy accounting for 70 percent of application of aeronautics and space ,metal foil of 4~ 5? m ,deep drawing plate with anisotropy below 1 percent ,electronic aluminum foil with micro orientation up to 95 percent ,heat resisting aluminum alloy with super strong specific strength used in aeronautics ,space and deep sea ,etc. [1 ,2 ] Thus several important development trends with distinct time features in material processing domain are shaped up as follows : (1) Creating material processing machine with extraordinary physical field for processing material with special texture structures and functions. For example ,applications of thermal energy and mechanical energy are breaking through unceasingly technology limit ,and some non tradition energy ,such as microwave ,chemical energy , bioenergy , etc. , are introduced into material processing procedure one after another ,so that some material processing machines with extraordinary energy circumstance are produced. (2) Breaking through traditional physical limits and integrating melting ,solidifying ,plastic deformation and heat treatment to obtain special function of material and cut down expenses[3 ] . For example ,near shaping material processing technology , such as fast rolling , spraying deposition ,over plastic molding , injection molding , high energy beam ,etc ,is applied. (3) Material processing process is fed ahead in the direction of high speed ,heavy duty and high accuracy online control ,for instance , the rolling speed goes up to 130 m由于這些原因,原料加工機械設(shè)備設(shè)計理論將科學(xué)與技術(shù)相關(guān)聯(lián)的領(lǐng)域有機的結(jié)合起來設(shè)計生產(chǎn)一中新概念材料加工設(shè)備是 可能的。因此提出了以下的問題:機械裝置的噪聲可能在晃動的界面引起滑動摩擦、不穩(wěn)定狀態(tài);在高速、重載和邊界潤滑表面和旋轉(zhuǎn)式噴灌器之間的裝置抑制。最優(yōu)化的材料加工技術(shù)和材料加工設(shè)備意味著實現(xiàn)實質(zhì)的仿真通過類似的設(shè)計和一致的設(shè)計是我們學(xué)習(xí)的主題。另外,機電的耦合在處理系統(tǒng)中已經(jīng)超出了傳統(tǒng)的概念;例如,一些奇特的現(xiàn)象(微小 的變化可以引起很大的變化)已經(jīng)出現(xiàn);因此,滾筒操作的不穩(wěn)定性可能會導(dǎo)致混亂。關(guān)于設(shè)計這個設(shè)備的基本理論問題是要學(xué)習(xí)核心傳動系統(tǒng)合能量轉(zhuǎn)化和建立數(shù)學(xué)模型。 ( 2)突破傳統(tǒng)的物質(zhì)限制,將溶化、凝固、造型一體化,然后加熱得到具有特殊功能的原料,這樣就可以降低加工費用。 Electronic Engineering ,Central South University ,Changsha 410083 ,Hunan China) Abstract :Based on reviewing the historical background, prospecting for the development trend ,analyzing the plicacy and mechanism and summing up some achievements and experiences in scientific research , several new problems and the possible direction of development in material processing technology and machine
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