Mechanical design is the application of science and technology to devise new or improved products for the purpose of satisfying human needs. It is a vast field of engineering technology which not only concerns itself with the original conception of the product in terms of its size, shape and construction details, but also considers the various factors involved in the manufacture, marketing and use of the product.
People who perform the various functions of mechanical design are typically called designers, or design engineers. Mechanical design is basically a creative activity. However, in addition to being innovative, a design engineer must also have a solid background in the areas of mechanical drawing, kinematics, dynamics, materials engineering, strength of materials and manufacturing processes.


機(jī)械設(shè)計簡介
機(jī)械設(shè)計是為了滿足人類需要而制定出的新產(chǎn)品或者改進(jìn)舊產(chǎn)品時對科學(xué)與技術(shù)的應(yīng)用。 它是工程技術(shù)的一個巨大領(lǐng)域,這個領(lǐng)域不僅關(guān)注原先這種產(chǎn)品的尺寸，形狀以及構(gòu)造方式， 而且考慮涉及這種產(chǎn)品的制造，銷售和使用的其它各方面的因素。
進(jìn)行機(jī)械設(shè)計的各種各功能的人們被通常叫為設(shè)計者或者設(shè)計工程師。 機(jī)械設(shè)計基本上是一次創(chuàng)造活動。 然而， 除富有創(chuàng)新精神之外， 一位設(shè)計工程師也必須在機(jī)械制圖，運(yùn)動學(xué)，力學(xué)，材料工程，材料強(qiáng)度和制造工藝有一定的背景知識。
精確的說，機(jī)械設(shè)計的目的就是為了滿足人們的需求。 發(fā)明，創(chuàng)造和科學(xué)知識它們自己可能不能讓人獲益； 但是只要他們合并在一起并設(shè)計產(chǎn)品，其益處就會被得到。因此，在一種特別的產(chǎn)品被設(shè)計之前，人的需求必須被鑒定，這一點(diǎn)應(yīng)該被認(rèn)識到。