材料研究

Material study
结构创新在于节点,节点创新在于材料。我们对橡胶、硅胶、木头、纸管等一系列材料进行测试,设计了不同形式可动的灵活节点。由木头制作出来的灵活节点脆性很大,可承受的扭力很小。最终选择了浇铸硅胶制作成的软性节点。硅胶相较于橡胶更加柔韧,并且与纸和木头的吸附性更强。纸管比木头要轻得多,这就可以大大减少整个结构的自重,从而减少建成后整体结构的下沉。更有利的是,因为纸管是中空的,我们可以把互动的电子元件隐藏在里面。但是,中空纸管的接触面却是有限的,不足以和硅胶形成强度高的连接。因此我们设计了另一种零件-木质暗榫-来抓紧纸管和硅胶,更有效的提高了节点的力学特性。
 
The innovation of the structure lies on the joint, while the innovation of the joints lies on the material. We did a series test on rubber, silicon, wood and paper tubes and continuously improve the design of flexible joints. According to the test, rubber is not very stick to the wood, so the torsional strength is weak. Silicon is softer than rubber and performs well with wood and paper tubes. Paper tubes are much lighter than wood sticks. It will significantly reduce the subsidence of the whole structure. Further more, because it is hollow, we can hide the interaction electronic device inside. However, the contact surface of hollow paper tube is not enough to make strong connection with the silicon. Therefore, we designed a component - a dowel - to firmly grasp the tube and silicon.