Computational Design and Fabrication of Corrugated Mechanisms from Behavioral Specifications

11/10/2020
by   Chang Liu, et al.
0

Orthogonally assembled double-layered corrugated (OADLC) mechanisms are a class of foldable structures that harness origami-inspired methods to enhance the structural stiffness of resulting devices; these mechanisms have extensive applications due to their lightweight, compact nature as well as their high strength-to-weight ratio. However, the design of these mechanisms remains challenging. Here, we propose an efficient method to rapidly design OADLC mechanisms from desired behavioral specifications, i.e. in-plane stiffness and out-of-plane stiffness. Based on an equivalent plate model, we develop and validate analytical formulas for the behavioral specifications of OADLC mechanisms; the analytical formulas can be described as expressions of design parameters. On the basis of the analytical expressions, we formulate the design of OADLC mechanisms from behavioral specifications into an optimization problem that minimizes the weight with given design constraints. The 2D folding patterns of the optimized OADLC mechanisms can be generated automatically and directly delivered for fabrication. Our rapid design method is demonstrated by developing stiffness-enhanced mechanisms with a desired out-of-plane stiffness for a foldable gripper that enables a blimp to perch steadily under air disturbance and weight limit.

READ FULL TEXT

page 1

page 2

page 3

page 4

page 5

page 6

page 7

research
02/13/2019

Analytical Modeling for Rapid Design of Bistable Buckled Beams

Double-clamped bistable buckled beams, as the most elegant bistable mech...
research
01/17/2019

Computational Design of Lightweight Trusses

Trusses are load-carrying light-weight structures consisting of bars con...
research
05/27/2023

Context-Aided Variable Elimination for Requirement Engineering

Deriving system-level specifications from component specifications usual...
research
01/31/2018

A family of OWA operators based on Faulhaber's formulas

In this paper we develop a new family of Ordered Weighted Averaging (OWA...
research
01/26/2023

Design of Mobile Manipulator for Fire Extinguisher Testing. Part I Key Specifications and Conceptual Design

All flames are extinguished as early as possible, or fire services have ...
research
05/13/2022

A Hoare Logic with Regular Behavioral Specifications

We present a Hoare logic that extends program specifications with regula...
research
01/05/2022

WebSpec: Towards Machine-Checked Analysis of Browser Security Mechanisms

The complexity of browsers has steadily increased over the years, driven...

Please sign up or login with your details

Forgot password? Click here to reset