International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Fabrication and Analysis of Tensegrity Based Prism structure Mrs. Sonam yadav1, Avinash singh2 1
Asst. Professor Dept. of civil Engineering IES IPS Academy, Indore, MP, India 2 M. tech, Dept. of civil engineering, IES IPS Academy, Indore, MP, India
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tension resisting cables, but cannot be both. The major defining factor for tensegrity system is that the strut are not allow to connect to each other at any point in the structure. They may only be connected via cables, creating the effect that struts are being suspended in space. The main characteristic of this structure is internal selfequilibrium under the condition that the no external forces act on tensegrity structure. The structure is formed by isolated strut components to sustain the compression forces and continuous pre-stressed cable lines to resist the tensional forces.
Abstract - The objective of this review paper is to
understand the basic concept & principal on which tensegrity system is working. A module based on T-Prizm configuration is fabricated using common available materials like UPVC Pipe and Nylon rope, it’s a CLASS-I tensegrity model. Tensegrity play an important role in technological advancement of mankind in many fields ranging from Engineering to Biology. Tensegrity consist of both compression member & tensile members. Key Words: Tensegrity, cable, strut, compression, model, tension, elements, u-pvc, nylon.
1. INTRODUCTION
Tensegrity story is beginning with the question who discover what and when. in 1996 the different views of Buckminster Fuller, David George Emmerich and Kenneth Snelson were thoroughly debated and finally Mr. Buckminster fuller credited to Mr. Snelson for discovering the tensegrity principal. A tensegrity structure, also known as “tensional integrity” The overall goal of tensegrity research is the design of large, irregular systems with an eventual pathway to industrial application. Figure 2. Kurilpa tensegrity bridge in Brisbane Australia built in 2009 [1]
1.2 CLASSIFICATION OF TENSEGRITY STRUCTURE
Tensegrity structures are classified in two types. 1. Class-I Structures 2. Class-II Structures No pair of Compression members touches each other is known as Class-I Tensegrity structures. If compressive members are touch each other at joints, then it is known as Class-II Tensegrity structures. A tensegrity structure is a pre-stress able truss like system involving string element capable of transmitting load in one direction only.
Figure 1. SNELSON’S WoodX-Column1948 [1]
1.3 TENSEGRITY SYSTEMS
1.1 TENSEGRITY?
Tensegrity Structures are classified as Geodesic & Prestressed structures. Tensegrity structures are categories into Three main types: Tensegrity Prism, Diamond Tensegrity & Zig-Zag Tensegrity. Simple X-shaped wooden struts suspended in air by starched nylon cables. The X-
Tensegrity system are a class of truss structures but it’s behavior is different from truss, composed of cable and strut. All connection is pin-jointed and there for cannot transfer any moments, resulting in axial resistance only. Tensegrity system differ from ordinary truss structure in that members are either compression resisting Struts, or
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