【正文】 , and the relationship between powder movement and density. These formulations make things convenient for the predesign of mag. Experiments proved that the mixture of different size of powder can improve its properties. It is better to mix 100 mesh and 80 mesh as 1:, then mix the former mixture with 200 mesh with ratio as 1:. When the content of binder was changed, the magic properties are following the same law as the density. The best range of the content of binder is 3%～ 4%(Wt.). Moulding pressure is the most important factor, high pressure can increase its properties. But the die would be destroyed by pressure, so the best pressure is 730Mpa. Key words: bonded NdFeB。 通過理論研究，得到了粘結(jié)磁體原料配比與組分參數(shù)間的關(guān)系、磁性能與組分組成間的定量關(guān)系表述、壓制過程中粉末的運(yùn)動規(guī)律、磁體在空間所產(chǎn)生磁場的理論公式。依據(jù)這樣的曲線規(guī)律，很容易制得室溫附近的成分不同的鈣鈦礦樣品，并能預(yù) 測已知成分 的 鈣鈦礦樣品的居里溫度。 同時找到了影響合成結(jié)果的關(guān)鍵性因素 —高壓釜的密封性，最終改進(jìn)了工藝：將最初的 ―水熱 —熱處理 ‖合成工藝變?yōu)橐徊剿疅峒纯珊铣伞?內(nèi)蒙古科技大學(xué)與包頭稀土研究院合作 6 年，進(jìn)行室溫磁致冷技術(shù)開發(fā)研究 。 By the high temperature vacuum mould technology, the density of nanoposite permanent magic alloys was improved and the volume fraction of mags was reduced. At the same time, the orientation of crystalline can wheel in the process of dieupsetting. This will be benefit for permanent alloys magism. Key words: NdFeB permanent mags。高溫真空模壓成型工藝提高永磁體密度，減小了孔洞體積率，同時模壓的過程中，永磁合金磁粉晶粒會有一定取向的轉(zhuǎn)動，有利于提高永磁體的 磁性能。利用透射電子顯微鏡（ TEM）進(jìn)行了顯微組織分析，確定了在永磁合金的組織中有晶體和非晶共存，通過電子衍射對永磁合金中相的晶體結(jié)構(gòu)進(jìn)行了分析，同時也研究了非晶組織的轉(zhuǎn)變過程中相的變化對磁性能的影響。要制備高性能的粘結(jié)永磁體必須要有高性能的磁粉。其結(jié)果可以為板型控制和工作輥壽命計算分析提供理論依據(jù)。本文就是利用 ANSYS 有限元分析軟件對熱軋帶鋼工作輥的溫度場和熱應(yīng)力進(jìn)行解析。因此，定性和定量確定熱應(yīng)力顯得尤為重要，準(zhǔn)確計算工作輥的溫度場是計算其熱應(yīng)力的前提。 Web。 基于 Web 的面向產(chǎn)品開發(fā)過程的 客車產(chǎn)品數(shù)據(jù)管理系統(tǒng)的建立對客車企業(yè)的信息化建設(shè)具有重要的意義，是客車企業(yè)技術(shù)部門實(shí)現(xiàn)資源共享、數(shù)據(jù)繼承以及并行工程的基礎(chǔ)，它的實(shí)施將提升客車企業(yè)的技術(shù)管理水平，為企業(yè) CIMS 建設(shè)打好基礎(chǔ)。 最后對全文作了總結(jié)，并提出了展望。本文的研究工作主要包括以下幾個方面： (1) 緒論中對質(zhì)量的概念以及質(zhì)量科學(xué)的形成和發(fā)展做了簡單的介紹；接著分別介紹了單變量統(tǒng)計過程控制的一些方法，主元分析的基本理論和基于主元分析的多變量統(tǒng)計過程控制及其一些改進(jìn)方法；最后對統(tǒng)計過程診斷的發(fā)展?fàn)顩r作了簡單的敘述。 關(guān)鍵詞： 超磁致伸縮換能器；系統(tǒng)特性；數(shù)學(xué)模型；有限元分析；仿真模型；磁機(jī)耦合 ABSTRACT The giant magostrictive material is a new functional material， which has high magostriction、rapid response velocity、 great energy density， as well as big output force． Because of the choiceness properties of the GMM， many researchers of the world countries now have taken part in studying it． In the mean time， its corresponding theory and applications studies are being processed． In this thesis ， the inputoutput characteristics of great magostrictive transducer are discussed． The purpose of reaseach is to get universal mathematical model of great magostrictive transducer， which can provide a theoretic basis for the design of magostrictive instrument ． Firstly the thesis has a discussin about characteristic and performance of the giant magostrictive material 、the actuality of instrument exploitation and the state of academic studies in detail． Moreover， it has further discussions in the following aspects： 1. Simulate the influence that ΔE offect act on magostrictive rod by the limited cell software and Analyse the influencing factor about the magic field equality． 2. Simulate the magostrictive capacity of the exploying magostrictive rod by making use of the relation between magostriction and magization intensity． 3. According to the magostrictive machanism and the related formulas that are in THE MATERIAL MACHANICS and THE LIMITED CELL， deduce the static state inputoutput model of giant magostrictive transducer and simulate the relative curve between static input signal and output signal by using ANSYS software． 4. Establish the dynamic state model about giant magostrictive transducer system that are based on the physical disciplinarian． Gain the system response curve and the effect law of diversified parameter that is acted on gain magostrictive transducer． 5. Based on the existing giant magostrictive transducer， does a experiment about static state characteristic and dynamic state characteristic ， which can verify the legitimacy of transducer mathematical model． Key words： giant magostrivtive transducer； system characteristic； mathematical model； the limited cell analysis； simulation model； the coupling of magicmachanism． 6 論文題 目： 基于神經(jīng)網(wǎng)絡(luò)的質(zhì)量診斷理論的研究與應(yīng)用 The Research and Applications of Quality Diagnosis Theory Based on Neural Networks 研究生姓名： 劉 華 導(dǎo)師姓 名： 王建國 教授 專 業(yè)： 機(jī)械電子工程 摘 要 ： 產(chǎn)品質(zhì)量的優(yōu)劣，是衡量一個國家生產(chǎn)力發(fā)展水平以及技術(shù)、經(jīng)濟(jì)發(fā)展水平的重要標(biāo)志。 3. 根據(jù)磁致伸縮產(chǎn)生的機(jī)理，結(jié)合材料力學(xué)及有限元中軸對稱結(jié)構(gòu)離散化的相關(guān)公式，推 5 導(dǎo)出超磁致伸縮換能器的靜態(tài)輸入輸出模型。 關(guān)鍵詞： ERP 訂單生產(chǎn) C/S B/S 數(shù)據(jù)庫 實(shí)施 ABSTRACT ERP, that is Enterprise Resource Planning, is a synthetic enterprise management message system developed in the 90s of 19 century. It shows the direction and tendency of enterprise management in the future. With the development of information technology, information small and medium manufacturing enterprise bee more and more important. In order to adapt to the current intensive market petition, the small and medium manufacturing enterprise should boost their petitive ability by putting the enterprise resource planning system in practice. At the same time currently many enterprises‘ activities are based on the mode of make to order. They emphasize on the need of customers. So it is important for us to effetely solve the enterprise resource planning of make to order based small and medium manufacturing enterprise. In other words, we should effetely put the customer‘s order information into the ERP system and then the enterprises quickly make the specific products that 4 customers have required. The main idea of thesis is study and explore of system geared to local small and medium manufacturing enterprise of make to order. At the beginning of this thesis ,it introduces the development、 function and tendency in the function of ERP and the manufacturing types, especially deals with contents and aims of make to order based local small and medium manufacturing enterprise ERP system. The main co