The design of a compliant shape-preserving ring

Schreurs, K. W.A.; Radaelli, G.; Alijani, F.

doi:10.1016/j.mechmachtheory.2020.103918

The design of a compliant shape-preserving ring

Title

The design of a compliant shape-preserving ring

Author

Schreurs, K. W.A. (Student TU Delft)
Radaelli, G. (TU Delft Mechatronic Systems Design)
Alijani, F. (TU Delft Dynamics of Micro and Nano Systems)

Date

2020

Abstract

Compliant shape-preserving mechanisms fill a small niche within the established research field of compliant mechanisms. To date no report exists on a compliant shape-preserving ring, even though these mechanisms can give rise to a multitude of practical applications. They can essentially act as novel sealing mechanisms, compliant grippers or find use in medical applications. This paper presents three compliant shape-preserving rings that maintain their circular shape up to 99% for their full range-of-motion. The best design can expand in diameter by ≈ 45%. A prototype of a compliant shape-preserving ring was constructed from PETG (Polyethylene Terephtalate Glycol-modified) using fused-filament-fabrication. The experimental evaluation of this prototype showed a good agreement with the numerical model describing the design. A novel compliant scissor mechanism was obtained in the design process and this mechanism can prove useful in the design of other compliant shape-preserving mechanisms.

Subject

Compliant mechanisms
Dilational mechanisms
Flexures
Shape optimization
Shape-preservation

To reference this document use:

http://resolver.tudelft.nl/uuid:f922e39e-5b1c-42e6-be9d-760fabf62d7b

DOI

https://doi.org/10.1016/j.mechmachtheory.2020.103918

ISSN

0094-114X

Source

Mechanism and Machine Theory, 151

Part of collection

Institutional Repository