Week 9 Free Post: Mechanical Engineering and Military Weapon

      Mechanical engineer is not only target to design auto and use heavy machines to produce products, but also mechanical engineer closely relates to military weapon. From the old ancient China to nowadays advanced American technical weapon, mechanical engineers make big contribution to military.





Stone Thrower in Video Game

Stone Thorwer in Ancient China.

Apart from the simple ladder, the medieval rewards the most commonly used equipment including stone thrower, cars and big-hit shield. Here I am going to talk about the stone thrower. If you look at the pictures which I post above, you will basically know the appearance of the stone thrower, they always has solid chassis so that they can afford the weight of the above part and big stones, a long arm and a big spoon are also required, so that soldiers can throw the stone further, because according to the Leverage Theory, the longer the arm is, the power used by soldiers the less. The stone throwers was first shown in the end of Han dynasty, when Cao, Sun, Liu three kingdoms want to control the whole China, those talented ancient mechanical engineers create stone throwers to destroy the high wall which is also made in stone.

Back to modern society, the high advanced technical weapon I am going to introduce here is MEMS (Micro-Electro-Mechanical Systems). MEMS is a precision device technology that integrates mechanical elements, sensors, actuators, and electronics on a common silicon substrate through micro fabrication technology. MEMS can help military to find those invisible units which hide themselves by decreasing its area or painting special material outside. In modern war, find your enemy quickly means you can target them easily.

 

 

Citation

1.际超, 李. "机械工程技术与武器装备的发展." 信息系统与管理学院. (2009): n. page. Web. 25 Mar. 2014. http://wenku.baidu.com/link?url=d4-QJkKiVV0ikHCjUQQwVzr_KhjXj-PzvWnDICOuUDyXrn55wkCuMEkqi7AYqLA0K8ZvDCBmog9iDJrIjtvIj_jN5mmff1akHblJhDR6jQ3.

2. "Micro-Electro-Mechanical Systems (MEMS)." EngineersGarage. (2010): n. page. Web. 25 Mar. 2014. http://www.engineersgarage.com/articles/mems-technology.