一本大道无码中文字幕,亚洲午夜男女爽爽爽

Now. Here's what you need to acquireproficiency in through your 4-year BS.
現(xiàn)在,，下面這些是你在大學(xué)四年中需要熟練掌握的。
0. Read Wikipedia.
閱讀維基百科
1. Programming - Start with Matlab/Python. Thengraduate to C++. An example of a programming goal would be to use this tocreate your own computational graphics engines. Why? Because this teaches youabout visualizing vectors, arrays, transforms and leads you tohigher-dimensional algebra. Make sure you can understand and implementRunge-Kutta family of algorithms before you think you are done. Arecommendation would be to ditch Windows and move to some flavour of Linux orMac. You need to understand concepts behind batch/shell scripting and importingopen source scripts to embed inside your own. If you don't do anything else inyour freshman or sophomore years, that's fine. But make sure you master this.
編程：從Matlab/Python開始,，接著C++,。舉個(gè)例子，要達(dá)到用這些語言可以自己編寫一個(gè)圖像引擎,。為什么,？因?yàn)檫@能讓你把矢量、陣列,、變換圖形化,，并通往高維代數(shù),。要確保你能理解和應(yīng)用Runge-Kutta的算法，這樣才算學(xué)好,。不要只是用windows,，也要領(lǐng)略一下Linux或Mac的風(fēng)采。要能理解batch/shell腳本語言的原理,，并能把利用重要的開源腳本搭建自己的腳本,。如果你在一年級或二年級什么事也沒干，確保一定要精通這些,。
2. Linear algebra anddifferential equations - Now,most ME syllabi force the courses on you early on. But very few MEs trulyunderstand these topics. This is the source of all ME theory. I CANNOT STRESSTHIS ENOUGH! Most ME professors DO NOT understand linear algebra or itsimportance - they will fuck it up for you so you will be confused/avoidderivative topics forever. Don't take these courses offered inside yourdepartment - take them from CS or EE or Math professors. Or learn it fromGilbert Strang on Youtube. Tie this together with your programming to createnumerical simulations. Do NOT take these courses until you are done with yourprogramming.

線性代數(shù)和微分方程：現(xiàn)在大部分機(jī)械工程的大綱都要求盡早學(xué)這門課,，但很少有機(jī)械工程師能真正理解，它們是機(jī)械工程的根本,，再怎么強(qiáng)調(diào)都不過分,。很多機(jī)械專業(yè)教授都不理解線性代數(shù)的重要性，把它教砸,，去聽計(jì)算機(jī),、數(shù)學(xué)專業(yè)老師開的課�,；蛉outube聽GilbertStrang 的課,。把它和編程結(jié)合，進(jìn)行數(shù)值仿真,。不要等編程學(xué)完,，再學(xué)它們。

3. Statistics - Take this twice. Audit it as afreshman. Then take the course again as a senior. This will be the single mostimportant course you ever take as a professional in any field.
統(tǒng)計(jì)學(xué)：學(xué)兩遍,，第一年學(xué),，高年級再學(xué)。這是唯一一個(gè)任何專業(yè)都非常重要的一門課,。
4. Engineering mathematics -The rest of your life depends onthis. Pay attention to spatial transforms, Fourier analysis, Complex analysis,Potential theory, PDEs, Interpolation/curve fitting, optimization theory. Lookfor ways to implement these concepts using your programming skills. If you everwonder about the usefulness of any of this, or you get the choice to skip a fewtopics - you are doing it wrong. Good engineers use these concepts EVERYDAY.
工程數(shù)學(xué)：空間變換,、傅里葉分析、復(fù)變函數(shù),、位勢理論,、偏微分方程組、插值/曲線擬合,、優(yōu)化理論,。結(jié)合編程技能，實(shí)踐它們,。如果認(rèn)為有些沒用跳過去,，都是錯(cuò)誤的。好的工程師每天都用它們,。
5. Dynamics/Advanced dynamics - Take this in the Physics department.ME profs screw it up here again, they focus on the mechanics of algebraicmanipulation and don't explain concepts very well. Your objective would be tobe able to independently construct FBDs of complex interacting mechanisms, andgenerate classical non/autonomous, non/linear differential equations thatdescribe the time-history of the system. Develop a familiarity with indexnotation and tensors and operator spaces. Your indicial programming experiencewill really help you here.
動(dòng)力學(xué)/高等動(dòng)力學(xué)：聽物理系的力學(xué)課,，機(jī)械的教授總是用代數(shù)的方法對待力學(xué),，對概念解釋不夠好。你的目標(biāo)是能獨(dú)立建立復(fù)雜機(jī)械的FBDs(應(yīng)該指自由體受力圖),，能寫出經(jīng)典的隨時(shí)間變化系統(tǒng)的自治/非自治,、線性/非線性微分方程，熟悉指標(biāo)記法,，張量和算子空間,，你的編程經(jīng)驗(yàn)可以幫助你。
6. Statics/Solid mechanics - Master Timoshenko Goodier/Theory ofelasticity. Even if it takes you the rest of your life. If you got throughpoint 2, you should be able to point out the inefficiency of the SFDs and BMDsand Mohr's circle concepts. Try visualizing the simple cases while cognizantthat life is not simple. Use your programming finesse to program numerical solutionsto your ODEs and equations.
靜力學(xué)/固體力學(xué)：精通鐵木辛柯的彈性理論,，即使花去你的余生,。如掌握了第2點(diǎn)，你應(yīng)該能知道SFDs和BMDs的無效和莫爾圓概念,。要嘗試把簡單的例子圖形化,，其實(shí)這并不簡單。使用你的編程技能去解ODEs方程（常微分方程）的數(shù)值解,。
7. Vibration theory - If you actually got through point 2,you will find this a breeze. All they do here is study a second order,non/homogenous, non/autonomous non/dimensionalized ordinary differentialequation and the effects of parametric variations (mkc, forcing frequency). Ifyou got through 5, you should be able to figure out all the base excitation,seismic perturbation, isolation, rotating machinery concepts. If you gotthrough 6, then plates/beam vibration problems. If you got through 2 & 4,you will be able to work through MDOF systems and all the modal analysistechniques. This is where you segue to coupled SHO/QHO concepts.
振動(dòng)理論：如果你熟練掌握了第2點(diǎn)，這會(huì)比較輕松,。振動(dòng)理論主要是研究二階,、齊次/非齊次、自治/非自治,、變參/非變參常微分方程,。如你掌握了第5點(diǎn)，你會(huì)知道怎么計(jì)算響應(yīng),、地震擾動(dòng),、減震、旋轉(zhuǎn)機(jī)械等,。掌握第6點(diǎn),，可以解決板、梁的振動(dòng)問題,。同時(shí)掌握2和4,，應(yīng)能夠解多自由度系統(tǒng)，掌握模態(tài)分析方法,。在這里還要學(xué)習(xí)耦合的SHO/QHO概念,。
8. Thermodynamics/Fluidics - I am not the right person to adviseon these topics. But they are pretty straightforward at the undergraduate leveland mostly applications of differential equations and continuum mechanics.
熱力學(xué)/流體力學(xué)：我不適合對這部分內(nèi)容發(fā)表意見，但它們在本科階段并不難,，并且主要是應(yīng)用微分方程和連續(xù)介質(zhì)力學(xué),。
If you followed instructions so far, everything else is a straightforwardapplication of what you should have learned by now. That's all you really needto be a degree'd mechanical engineer - math and physics. Everything else is aspecialization and extension of domains from the presented fields into specifictasks. This is also where you start encountering professional jargon. And don'tlet terms/eponyms scare you off.
如果你按上面執(zhí)行了，以后就是對你上面所學(xué)的簡單應(yīng)用,。這是一個(gè)機(jī)械工程師應(yīng)該真正掌握的,，數(shù)學(xué)和物理,。你以后碰到的一切專業(yè)問題，都是特定的任務(wù),，只是針對上面領(lǐng)域的應(yīng)用與擴(kuò)展,，以后你會(huì)開始碰到一些的專業(yè)術(shù)語，不要被專有名詞和術(shù)語嚇到,。
Also mechanical engineers don’t generally design machines from scratch –hobbyists and mathematicians do. We follow standards for our industry, mix andmatch components, or use well defined algorithms to create a new one. There areconcepts in kinematic chains, algebraic linkage synthesis and design that areused here. So sure you can read about gears and machinery and 4-bar linkagesand cams and genevawheels, but it is highly improbable that you, as an ME, will create one. It ismore likely that a technician or a sheet metal worker will create somethingutterly brilliant. So if that’s what you want to do, figure on grad school. Youcan however use your solid mechanics skills to design the components towithstand pyrotechnic impacts.
愛好者和數(shù)學(xué)家也設(shè)計(jì)機(jī)器,，但機(jī)械工程師不從零開始。我們遵循工業(yè)標(biāo)準(zhǔn),，組合并匹配已有組件,，用已有的算法來創(chuàng)造新東西，例如運(yùn)動(dòng)鏈,、連桿綜合和設(shè)計(jì),。確保讀過齒輪、機(jī)械學(xué),、4連桿機(jī)構(gòu),、凸輪、間歇傳動(dòng)輪,。有可能,，工程師創(chuàng)造這些機(jī)構(gòu)并不在行，一個(gè)技師或工人會(huì)做得更好,，但你能用固體力學(xué)知識去設(shè)計(jì)好零件,，承受極大的沖擊力。
I skip over manufacturing and 'product engineering' classes because they areshit, when taught in school. You can't master manufacturing sitting in a class,and you certainly are never going to learn enough in school about how to designa full product. Those axiomatic design principles and synectics and productlifecycle management and ideation and Gantt charts and brainstorming processesare bullshit. Nobody in real life does that. Those who do, are not engineers.If you really want to understand manufacturing, skim through ManufacturingProcesses for Design Professionals by Rob Thompson, then go talk with people onshop floors, or watch how it's made on Youtube. If you really want tounderstand the product design process, follow Kickstarter h/w startup stories.

機(jī)械社區(qū)