Nonlinear analysis of topology-optimized scissor-like elements during deployment and structural performance analysis

Deployable structures, known for their flexibility and adaptability, have gained popularity in applications such as emergency shelters, aerospace structures, and sports facility roofs. One of many commonly used deployable mechanisms is Scissor-Like Elements, which is generally made from two straight rods connected by a scissor hinge. To improve the quality of the flexibility, deployable scissor structures must be lightweight. This thesis will use topology optimization, a free-form design technology, to design low-weight rods within chains of deployable scissor elements. This will be done with the aim of finding a trade-off relationship between the structural performance and the required energy for the deployment of scissor chains. From the trade-off relationship, the balance between the structural stiffness, material saving, and power saving is investigated.

Name thesis:degree_name

Master

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Civil and Environmental Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2020

Author dc:creator

• Sun, Shiyao,M. Eng.Massachusetts Institute of Technology.

Advisor dc:contributor.advisor

• Josephine V. Carstensen.

• Civil and Environmental Engineering.

Statement dc:rights

• MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/129015

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/129015