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Knowledge of machine design
The machine design is an application technical science which designs the new product or improves the old product to meet the human need. It involves all domains of the project technology , which mainly studies basic idea of the size, the shape and the detailed structure of products. And it also studies the questions of manufacture, sale and usage.The goal of the machine design is to produce the product which meets the human need. The invention, discovery and technical knowledge are not necessarily bringing the advantages to humanity, which take benefits when they are applied on the product. So , it should be realized that if the product is needed or not before a special design carrying on .
It’s a good opportunity for machine designer to use creative ability on the product design, system analysis and a formulation product manufacture technology. Grasps the project elementary knowledge is more important than memorize some data and the formula. The merely service data and the formula is insufficient to the completely decision which makes in a good design. On the other hand, it should be earnest precisely all operations. For example, a decimal point position wrongly can cause the correct design to false.
In the preliminary stage of design, it’s allowed to display the creativity for designers fully, none of restraint will be take. Even if having many impractical ideas, these can be correct in the early design, before the blueprint drawings are drawed . Only then, the mentality on innovation will be not stop up. Usually, several sets of design proposals will be proposed and compared. May be some thoughts will be used in the last proposal from the other proposals which are not accept .
Usually, some problems will happen in the manufacture process. Such as making some modifies on components size or the common to make the components production easily. But, the project change must be authorized by designer to guarantee the product’s function not to be damaged. Sometimes, some kinds of design flaws founded before product assembling or in the experiment before packing. These instances exactly showed the design is a dynamic process. There is always a better method to complete the design work. Designers should be supposed unceasingly diligently, to seek these better methods.
Recent year, the engineering material choice appeared more important. In addition, the choice process should be a continuously and reappraisal process. The new materials unceasingly appear, and some original materials keep reducing. The environmental pollution, material recycling, worker's health and security will attach the new limiting condition to the choice of materials. In order to reduce the weight or save energy, it should be requested to use different material. The competition from domestic and international, the request enhancement for product service maintenance and convenience , customer's aspect and so on will feedback pressure and urge the people to carry on the material reappraising. Because of the materials wrong selected , which cause the product responsibility lawsuit, has already had the profound influence. In additional, it’s clear that the material and the material processing interdependence. Therefore, in order to get the satisfy result under the reasonable cost and quality guarantee, project engineer have to choose, determine and use the materials carefully.
The first step of product manufacturing is design . Design usually divide into several explicit stages: (a) preliminary design; (b) functional design; (c) production design. In the preliminary design stage, the designer emphatically consider the function of product. They always conceive and consider several plans, then decide if the thought is feasible; If it is feasible, they should make the further improvement to one or several plans. In this stage, the question of choice of material is: Is there a material which can conform the performance to be supplied for choice; If no, whether has a bigger assurance to develop a kind of new material in limit of the cost and the time.
In the functional design and the engineering design stage, it needs to make a practical feasible design. The quite complete blueprint must be drew up in this stage, and choose, determine the materials for each kinds of components. Usually, the prototype or the working model must be manufactured , and carries on the experiment to it, appraises product’s function, reliability, the outward appearance and the service maintenance and so on. Although this kind of experiment will indicate that some materials will be replaced , before the product sending into the production line. But, this point is absolutely not a excuse to take not earnestly choice of the material. The outward appearance, the cost and the reliability of the product should be carefully considered, unified with the function of product. It’s best for a successful company to use the same materials which are used in the normal production and the same manufacture technology when they are manufacturing the prototypes as much as possible. The function completely prototype cannot be made economically according to the anticipated sales volume, or there are some great different in the quality and the reliable for prototypes and the official production installment , this kind of prototype does not have the great value. Project engineer should complete the analysis, the choice and the determination of the material in this stage , but not remains it to the production design stage . Because, the material replacement in the production design stage is decided by other people, who are inferior to project engineer to all functions understanding of the product.
In the production design stage ,it should be completely determined with the material, to make them to adapt with the existing equipment, and to use the existing equipment economically to carry on the processing, moreover, the material quantity can quite be easy to guarantee the supply.
In the manufacture process, it will appear the situation to change the material on using. The experience indicated that, use some certain cheap materials to take the substitute. However, in the majority situation, changing the materials after the production process will spend higher than changing the materials before the production process . Completing the choice of materials in the design stage, may avoid the most such situations. The most common reason for changing the materials when the product under manufacturing is that the new material is appeared. Certainly, these new materials possibly reduce the cost or improve the product performance. But, the earnest appraisal to the new material must be carried on , to guarantee its all performance to achieve the purpose. Remember that: the new material’s performance and the reliable is not understood by the people. The majority of products expiration and the product accident caused by negligence case is that the selects of the new material not truly understood their long-term operational performance.
The product responsibility lawsuit forces designers and the company use the best procedure when they choose materials. In the material choosing process, five most common questions are: (a) did not understand or cannot use the best and the latest information about the material application aspect; (b) has not been able to foresee and to consider the possible and reasonable usage of product (for example: designer is also supposed further to forecast and the consideration when the product used wrong. In recent years, many products responsibilities lawsuit case, because wrongly uses the plaintiff which the product receives the injury to accuse produces the factory, and wins the decision); (c) the material data are not entire or some data are indefinite, especially its long-term performance data; (d) the quality control plan is not suitable or not confirmed; (e) the personnel who is not competent to choose the material.
Through the analysis five questions above , may obtain these questions is does not have the sufficient reason existence the conclusion. It will avoid these questions appearance and indicate the direction after these questions analysis. Although, using the best choice of material will not avoid having the product responsibility lawsuit. Designer and the industry carries on the choice of material according to the suitable procedure, may greatly reduce the lawsuit the quantity.
From the above discussion, the choice of material should understand the material nature, the characteristic and the processing method comprehensive and basically.
對機(jī)械設(shè)計(jì)的認(rèn)識
機(jī)械設(shè)計(jì)是一門通過設(shè)計(jì)新產(chǎn)品或者改進(jìn)老產(chǎn)品來滿足人類需求的應(yīng)用技術(shù)科學(xué)。它涉及工程技術(shù)的各個(gè)領(lǐng)域,主要研究產(chǎn)品的尺寸、形狀和詳細(xì)結(jié)構(gòu)的基本構(gòu)思,還要研究產(chǎn)品在制造、銷售和使用等方面的問題。機(jī)械設(shè)計(jì)的目的是生產(chǎn)能夠滿足人類需求的產(chǎn)品。發(fā)明、發(fā)現(xiàn)和科技知識本身并不一定能給人類帶來好處,只有當(dāng)它們被應(yīng)用在產(chǎn)品上才能產(chǎn)生效益。因而,應(yīng)該認(rèn)識到在一個(gè)特定的產(chǎn)品進(jìn)行設(shè)計(jì)之前,必須先確定人們是否需要這種產(chǎn)品。
應(yīng)當(dāng)把機(jī)械設(shè)計(jì)看成是機(jī)械設(shè)計(jì)人員運(yùn)用創(chuàng)造性的才能進(jìn)行產(chǎn)品設(shè)計(jì)、系統(tǒng)分析和制定產(chǎn)品的制造工藝學(xué)的一個(gè)良機(jī)。掌握工程基礎(chǔ)知識要比熟記一些數(shù)據(jù)和公式更為重要。僅僅使用數(shù)據(jù)和公式是不足以在一個(gè)好的設(shè)計(jì)中做出所需的全部決定的。另一方面,應(yīng)該認(rèn)真精確的進(jìn)行所有運(yùn)算。例如,即使將一個(gè)小數(shù)點(diǎn)的位置放錯(cuò),也會使正確的設(shè)計(jì)變成錯(cuò)誤的。
在設(shè)計(jì)的初始階段,應(yīng)該允許設(shè)計(jì)人員充分發(fā)揮創(chuàng)造性,不受各種約束。即使產(chǎn)生了許多不切實(shí)際的想法,也會在設(shè)計(jì)的早期,即繪制圖紙之前被改正掉。只有這樣,才不致于堵塞創(chuàng)新的思路。通常,要提出幾套設(shè)計(jì)方案,然后加以比較。很有可能在最后選定的方案中,采用了某些未被接受的方案中的一些想法。
通常 ,在制造過程中會出現(xiàn)某個(gè)問題。可能會要求對某個(gè)零件尺寸或公差作一些更改,使零件的生產(chǎn)變得容易。但是,工程上的更改必須要經(jīng)過設(shè)計(jì)人員批準(zhǔn),以保證不會損傷產(chǎn)品的功能。有時(shí),在產(chǎn)品的裝配時(shí)或者裝箱外運(yùn)前的試驗(yàn)中才發(fā)現(xiàn)設(shè)計(jì)中的某種缺陷。這些事例恰好說明了設(shè)計(jì)是一個(gè)動態(tài)過程。總是存在著更好的方法來完成設(shè)計(jì)工作,設(shè)計(jì)人員應(yīng)該不斷努力,尋找這些更好的方法。
近些年來,工程材料的選擇已經(jīng)顯得重要。此外,選擇過程應(yīng)該是一個(gè)對材料的連續(xù)不斷的重新評價(jià)過程。新材料不斷出現(xiàn),而一些原有的材料的能夠獲得的數(shù)量可能會減少。環(huán)境污染、材料的回收利用、工人的健康及安全等方面經(jīng)常會對材料選擇附加新的限制條件。為了減輕重量或者節(jié)約能源,可能會要求使用不同的材料。來自國內(nèi)和國際競爭、對產(chǎn)品維修保養(yǎng)方便性要求的提高和顧客的反饋等方面的壓力,都會促使人們對材料進(jìn)行重新評價(jià)。由于材料選用不當(dāng)造成的產(chǎn)品責(zé)任訴訟,已經(jīng)產(chǎn)生了深刻的影響。此外,材料與材料加工之間的相互依賴關(guān)系已經(jīng)被人們認(rèn)識得更清楚。因此,為了能在合理的成本和確保質(zhì)量的前提下獲得滿意的結(jié)果,設(shè)計(jì)工程師的制造工程師都必須認(rèn)真仔細(xì)地選擇、確定和使用材料。
制造任何產(chǎn)品的第一步工作都是設(shè)計(jì)。設(shè)計(jì)通常可以分為幾個(gè)明確的階段:(a)初步設(shè)計(jì);(b)功能設(shè)計(jì);(c)生產(chǎn)設(shè)計(jì)。在初步設(shè)計(jì)階段,設(shè)計(jì)者著重考慮產(chǎn)品應(yīng)該具有的功能。通常要設(shè)想和考慮幾個(gè)方案,然后決定這種思想是否可行;如果可行,則應(yīng)該對其中一個(gè)或幾個(gè)方案作進(jìn)一步的改進(jìn)。在此階段,關(guān)于材料選擇唯一要考慮的問題是:是否有性能符合要求的材料可供選擇;如果沒有的話,是否有較大的把握在成本和時(shí)間都允許的限度內(nèi)研制出一種新材料。
在功能設(shè)計(jì)和工程設(shè)計(jì)階段,要做出一個(gè)切實(shí)可行的設(shè)計(jì)。在這個(gè)階段要繪制出相當(dāng)完整的圖紙,選擇并確定各種零件的材料。通常要制造出樣機(jī)或者實(shí)物模型,并對其進(jìn)行試驗(yàn),評價(jià)產(chǎn)品的功能、可靠性、外觀和維修保養(yǎng)性等。雖然這種試驗(yàn)可能會表明,在產(chǎn)品進(jìn)入到生產(chǎn)階段之前,應(yīng)該更換某些材料,但是,絕對不能將這一點(diǎn)作為不認(rèn)真選擇材料的借口。應(yīng)該結(jié)合產(chǎn)品的功能,認(rèn)真仔細(xì)地考慮產(chǎn)品的外觀、成本和可靠性。一個(gè)很有成就的公司在制造所有的樣機(jī)時(shí),所選用的材料應(yīng)該和其生產(chǎn)中使用的材料相同,并盡可能使用同樣的制造技術(shù)。這樣對公司是很有好處的。功能完備的樣機(jī)如果不能根據(jù)預(yù)期的銷售量經(jīng)濟(jì)地制造出來,或者是樣機(jī)與正式生產(chǎn)的裝置在質(zhì)量和可靠性方面有很大不同,則這種樣機(jī)就沒有多大的價(jià)值。設(shè)計(jì)工程師最好能在這一階段完全完成材料的分析、選擇和確定工作,而不是將其留到生產(chǎn)設(shè)計(jì)階段去做。因?yàn)椋谏a(chǎn)設(shè)計(jì)階段材料的更換是由其他人進(jìn)行的,這些人對產(chǎn)品的所有功能的了解不如設(shè)計(jì)工程師。
在生產(chǎn)設(shè)計(jì)階段中,與材料有關(guān)的主要問題是應(yīng)該把材料完全確定下來,使它們與現(xiàn)有的設(shè)備相適應(yīng),能夠利用現(xiàn)有設(shè)備經(jīng)濟(jì)地進(jìn)行加工,而且材料的數(shù)量能夠比較容易保證供應(yīng)。
在制造過程中,不可避免地會出現(xiàn)對使用中的材料做一些更改的情況。經(jīng)驗(yàn)表明,可采用某些便宜材料作為替代品。然而,在大多數(shù)情況下,在進(jìn)行生產(chǎn)以后改換材料要比在開始生產(chǎn)前改換材料所花費(fèi)的代價(jià)要高。在設(shè)計(jì)階段做好材料選擇工作,可以避免多數(shù)這樣的情況。在生產(chǎn)制造開始后出現(xiàn)了可供使用的新材料是更換材料的最常見的原因。當(dāng)然,這些新材料可能降低成本、改進(jìn)產(chǎn)品的性能。但是,必須對新材料進(jìn)行認(rèn)真的評價(jià),以確保其所有性能都滿足要求。應(yīng)當(dāng)記住,新材料的性能和可靠性很少像現(xiàn)有材料那樣為人們所了解。大部分的產(chǎn)品失效和產(chǎn)品責(zé)任事故案件是由于在選用新材料作為替代材料之前,沒有真正了解它們的長期使用性能而引起的。
產(chǎn)品的責(zé)任訴訟迫使設(shè)計(jì)人員和公司在選擇材料時(shí),采用最好的程序。在材料過程中,五個(gè)最常見的問題為:(a)不了解或者不會使用關(guān)于材料應(yīng)用方面的最新最好的信息資料;(b)未能預(yù)見和考慮產(chǎn)品可能的合理用途(如有可能,設(shè)計(jì)人員還應(yīng)進(jìn)一步預(yù)測和考慮由于產(chǎn)品使用方法不當(dāng)造成的后果。在近年來的許多產(chǎn)品責(zé)任訴訟案件中,由于錯(cuò)誤地使用產(chǎn)品而受到傷害的原告控告生產(chǎn)廠家,并且贏得判決);(c)所使用的材料的數(shù)據(jù)不全或是有些數(shù)據(jù)不確定,尤其是當(dāng)其長期性能數(shù)據(jù)是如此的時(shí)候;(d)質(zhì)量控制方法不適當(dāng)和未經(jīng)驗(yàn)證;(e)由一些完全不稱職的人員選擇材料。
通過對上述五個(gè)問題的分析,可以得出這些問題是沒有充分理由存在的結(jié)論。對這些問題的研究分析可以為避免這些問題的出現(xiàn)指明方向。盡管采用最好的材料選擇方法也不能避免發(fā)生產(chǎn)品責(zé)任訴訟,設(shè)計(jì)人員和工業(yè)界按照適當(dāng)?shù)某绦蜻M(jìn)行材料選擇,可以大大減少訴訟的數(shù)量。
從以上的討論可以看出,選擇材料的人們應(yīng)該對材料的性質(zhì),特點(diǎn)和加工方法有一個(gè)全面而基本的了解。
湖南農(nóng)業(yè)大學(xué)全日制普通本科生畢業(yè)論文(設(shè)計(jì))
中 期 檢 查 表
學(xué)? 院:???? 工學(xué)院????????????
學(xué)生姓名
李康成
學(xué)??? 號
200940614310
年級專業(yè)及班級
2009級機(jī)械設(shè)計(jì)制造及其自動化(2)班
指導(dǎo)教師姓名
全臘珍
指導(dǎo)教師職稱
教授
論文(設(shè)計(jì))題目
多功能健身器設(shè)計(jì)
畢業(yè)論文(設(shè)計(jì))工作進(jìn)度
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已完成的主要內(nèi)容
尚需解決的主要問題
初步構(gòu)思,主要機(jī)構(gòu)的設(shè)計(jì),主要運(yùn)動機(jī)構(gòu)參數(shù)的運(yùn)算,部分零件圖的繪制,設(shè)計(jì)說明書的目錄和章節(jié)分部,計(jì)算和書寫部分設(shè)計(jì)說明書,主要運(yùn)動機(jī)構(gòu)的材料強(qiáng)度校核。
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如何使運(yùn)動機(jī)構(gòu)的合理裝配,設(shè)計(jì)圖紙的繪制需要抓緊,裝配圖繪制,設(shè)計(jì)說明書的完整書寫,機(jī)構(gòu)的強(qiáng)度校核,運(yùn)動校核等。
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指導(dǎo)教師意見
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???????????????????? 簽名:????????????? 年??? 月??? 日??
檢查小組意見
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?????????????????????? 組長簽名:?????????? 年??? 月??? 日??
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注:1.此表可用黑色簽字筆填寫,也可打印,但意見欄必須相應(yīng)責(zé)任人親筆填寫。
2.此表可從教務(wù)處網(wǎng)站下載中心下載。
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湖南農(nóng)業(yè)大學(xué)全日制普通本科生
畢業(yè)論文(設(shè)計(jì))任務(wù)書
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學(xué)生姓名
李康成?
學(xué)???號
200940614310?
年級專業(yè)及班級
2009級機(jī)械設(shè)計(jì)制造及其自動化(2)班?
指導(dǎo)教師及職稱
全臘珍???教授
學(xué)???院
工學(xué)院?
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20?12?年12月3?日
填?寫?說?明
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一、畢業(yè)論文(設(shè)計(jì))任務(wù)書是學(xué)校根據(jù)已經(jīng)確定的畢業(yè)論文(設(shè)計(jì))題目下達(dá)給學(xué)生的一種教學(xué)文件,是學(xué)生在指導(dǎo)教師指導(dǎo)下獨(dú)立從事畢業(yè)論文(設(shè)計(jì))工作的依據(jù)。此表由指導(dǎo)教師填寫。
二、此任務(wù)書必需針對每一位學(xué)生,不能多人共用。
三、選題要恰當(dāng),任務(wù)要明確,難度要適中,份量要合理,使每個(gè)學(xué)生在規(guī)定的時(shí)限內(nèi),經(jīng)過自己的努力,可以完成任務(wù)書規(guī)定的設(shè)計(jì)研究內(nèi)容。
四、任務(wù)書一經(jīng)下達(dá),不得隨意更改。
五、各欄填寫基本要求。
(一)畢業(yè)論文(設(shè)計(jì))選題來源、選題性質(zhì)和完成形式:
請?jiān)诤线m的對應(yīng)選項(xiàng)前的“□”內(nèi)打“√”,科研課題請注明課題項(xiàng)目和名稱,項(xiàng)目指“國家青年基金”等。
(二)主要內(nèi)容和要求:
1.工程設(shè)計(jì)類選題
明確設(shè)計(jì)具體任務(wù),設(shè)計(jì)原始條件及主要技術(shù)指標(biāo);設(shè)計(jì)方案的形成(比較與論證);該生的側(cè)重點(diǎn);應(yīng)完成的工作量,如圖紙、譯文及計(jì)算機(jī)應(yīng)用等要求。
2.實(shí)驗(yàn)研究類選題
明確選題的來源,具體任務(wù)與目標(biāo),國內(nèi)外相關(guān)的研究現(xiàn)狀及其評述;該生的研究重點(diǎn),研究的實(shí)驗(yàn)內(nèi)容、實(shí)驗(yàn)原理及實(shí)驗(yàn)方案;計(jì)算機(jī)應(yīng)用及工作量要求,如論文、文獻(xiàn)綜述報(bào)告、譯文等。
3.文法經(jīng)管類論文
明確選題的任務(wù)、方向、研究范圍和目標(biāo);對相關(guān)的研究歷史和研究現(xiàn)狀簡要介紹,明確該生的研究重點(diǎn);要求完成的工作量,如論文、文獻(xiàn)綜述報(bào)告、譯文等。
(三)主要中文參考資料與外文資料:
在確定了畢業(yè)論文(設(shè)計(jì))題目和明確了要求后,指導(dǎo)教師應(yīng)給學(xué)生提供一些相關(guān)資料和相關(guān)信息,或劃定參考資料的范圍,指導(dǎo)學(xué)生收集反映當(dāng)前研究進(jìn)展的近1-3年參考資料和文獻(xiàn)。外文資料是指導(dǎo)老師根據(jù)選題情況明確學(xué)生需要閱讀或翻譯成中文的外文文獻(xiàn)。
(四)畢業(yè)論文(設(shè)計(jì))的進(jìn)度安排:
1.設(shè)計(jì)類、實(shí)驗(yàn)研究類課題
實(shí)習(xí)、調(diào)研、收集資料、方案制定約占總時(shí)間的20%;主體工作,包括設(shè)計(jì)、計(jì)算、繪制圖紙、實(shí)驗(yàn)及結(jié)果分析等約占總時(shí)間的50%;撰寫初稿、修改、定稿約占總時(shí)間的30%。
2.文法經(jīng)管類論文
實(shí)習(xí)、調(diào)研、資料收集、歸檔整理、形成提綱約占總時(shí)間的60%;撰寫論文初稿,修改、定稿約占總時(shí)間的40%。
六、各欄填寫完整、字跡清楚。應(yīng)用黑色簽字筆填寫,也可使用打印稿,但簽名欄必須相應(yīng)責(zé)任人親筆簽名。
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畢業(yè)論文
(設(shè)計(jì))題目
多功能健身器設(shè)計(jì)?
選題來源
□結(jié)合科研課題???課題名稱:????????????????????????????????????????
□生產(chǎn)實(shí)際或社會實(shí)際???????????■其他????
選題性質(zhì)
■基礎(chǔ)研究??????□應(yīng)用研究?????□其他
題目完成形式
■畢業(yè)論文??????□畢業(yè)設(shè)計(jì)?????□提交作品,并撰寫論文
主要內(nèi)容和要求
主要內(nèi)容:
1、臂膀鍛煉機(jī)構(gòu)設(shè)計(jì)?????
2、腿腳鍛煉機(jī)構(gòu)設(shè)計(jì)
3、座椅設(shè)計(jì)
4、支架設(shè)計(jì)
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要求:
1、根據(jù)人體運(yùn)動學(xué)和機(jī)械設(shè)計(jì)原理,設(shè)計(jì)合理可靠的多功能健身器。
2、美觀大方,經(jīng)濟(jì)適用。
3、完成3張A0圖紙(折合),并要求CAD繪制。
4、撰寫設(shè)計(jì)說明書,文字在1.0~1.5萬字間,條理清楚,計(jì)算有據(jù),格式按湖南農(nóng)業(yè)大學(xué)全日制普通本科生畢業(yè)論文(設(shè)計(jì))規(guī)范化要求。
5、設(shè)計(jì)說明書的內(nèi)容包括:課題的目的、意義、國內(nèi)外動態(tài);研究的主要內(nèi)容;總體方案的擬定和主要參數(shù)的設(shè)計(jì)計(jì)算;傳動方案的確定及設(shè)計(jì)計(jì)算,主要工作部件的設(shè)計(jì);主要零件分析計(jì)算和校核;參考文獻(xiàn),鳴謝。
注:此表如不夠填寫,可另加附頁。
主要中文參考資料與外文資料
[1]?徐學(xué)林主編.互換性與測量技術(shù)基礎(chǔ).長沙:湖南大學(xué)出版社.2005.
[2]?章宏甲等編.液壓行動.北京:機(jī)械工業(yè)出版社.2000
[3]?孫桓等編.機(jī)械原理.第六版.北京:高等教育出版社.2000?
[4]?濮良貴等編.機(jī)械設(shè)計(jì).第七版.北京:高等教育出版社,2001
[5]?朱張校主編.工程材料.第三版.北京:清華大學(xué)出版社,2001
[6]?哈爾濱工業(yè)大學(xué)理論力學(xué)教研室編,程靳等編.理論力學(xué).第六版.北京:高等教育出版社,2002?
[7]?郁明山等編.現(xiàn)代機(jī)械傳動手冊.北京:機(jī)械工業(yè)出版社,1996
[8]?吳宗澤主編.機(jī)械設(shè)計(jì).北京:中央廣播電視大學(xué)出版社,1998
[9]宮克?多功能輔助運(yùn)動器械的研究與應(yīng)用[J]????體育博覽(研究版),?2011(5)
[10]王永強(qiáng)??基于虛擬現(xiàn)實(shí)技術(shù)的多功能跑步機(jī)系統(tǒng)的研究與設(shè)計(jì)[J]??信息科技,?2010(5)
[11]錢林?宜建明?朱寧飛??多功能折疊舉重床[Z]??南通瑞升運(yùn)動休閑用品有限公司?專利公告號CN201871169U??中國人民共和國國家知識產(chǎn)權(quán)局??2011.06.22
[12]?2011-2016年中國倒斜舉重床行業(yè)當(dāng)前現(xiàn)狀及未來趨勢發(fā)展預(yù)測報(bào)告[R]??2011.10
[13]周正元?充電式四肢運(yùn)動康復(fù)器的設(shè)計(jì)?[J]?常州信息職業(yè)技術(shù)學(xué)院學(xué)報(bào),?2010.2
[14]李國強(qiáng)?電動跑步機(jī)電控系統(tǒng)的研制?[J]?控制理論與控制工程,??2008??
[15]矢禺?家用健身器新主張?[J]?文體用品與科技?,2006.11?
[16]張宏巍等?多功能人體自重康復(fù)健身器的研究與技術(shù)開發(fā)?[J]?吉林化工學(xué)院學(xué)報(bào)?,?2009.2
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工作進(jìn)度安排
起止日期
主要工作內(nèi)容
2012.11.06~2012.12.3
選題、下達(dá)設(shè)計(jì)任務(wù)書
2012.12.4~2013.1.07
調(diào)研、查找資料、畢業(yè)設(shè)計(jì)開題
2013.1.08~2013.01.25
設(shè)計(jì)方案修訂
2013.01.26~2013.03.28
設(shè)計(jì)計(jì)算??繪圖?
2013.03.29~2013.03.30
中期考核
2013.04.1~2013.04.30
書寫設(shè)計(jì)說明書,繪圖?,修改
2013.05.01~2013.05.13
預(yù)審、修改
2013.05.14~2013.05.20
答辯
要求完成日期:20?13年?5?月?06?日??????????????指導(dǎo)教師簽名:????????????????????????
審查日期:20?12年?12?月04??日????????????專業(yè)委員會主任簽名:?????????????????
批準(zhǔn)日期:20?12年?12?月?05??日????????????學(xué)院指導(dǎo)委員會簽名(公章):???????????
接受任務(wù)日期:20?12?年?12?月?05?日????????學(xué)生本人簽名:????????????????????????
注:簽名欄必須由相應(yīng)責(zé)任人親筆簽名。此表可從教務(wù)處網(wǎng)站下載中心下載。
湖 南 農(nóng) 業(yè) 大 學(xué)
全日制普通本科生畢業(yè)設(shè)計(jì)
多功能健身器設(shè)計(jì)
MULTIFUNCTIONAL BODYDY-BUILDING DEVICE DESIGN
學(xué)生姓名:李康成
學(xué) 號:200940614310
年級專業(yè)及班級: 2009級機(jī)械設(shè)計(jì)制造及其自動化(3)班
指導(dǎo)老師及職稱: 全臘珍 教授
學(xué) 院: 工學(xué)院
湖南·長沙
提交日期:2013年05月
湖南農(nóng)業(yè)大學(xué)全日制普通本科生畢業(yè)設(shè)計(jì)
誠 信 聲 明
本人鄭重聲明:所呈交的本科畢業(yè)設(shè)計(jì)是本人在指導(dǎo)老師的指導(dǎo)下,進(jìn)行研究工作所取得的成果,成果不存在知識產(chǎn)權(quán)爭議。除文中已經(jīng)注明引用的內(nèi)容外,本論文不含任何其他個(gè)人或集體已經(jīng)發(fā)表或撰寫過的作品成果。對本文的研究做出重要貢獻(xiàn)的個(gè)人和集體在文中均作了明確的說明并表示了謝意。本人完全意識到本聲明的法律結(jié)果由本人承擔(dān)。
畢業(yè)設(shè)計(jì)作者簽名:
年 月 日