Thin-walled component design optimization for crashworthiness using principles of compliant mechanism synthesis and Kriging sequential approximation

2014 ◽  
pp. 775-780 ◽  
Author(s):  
K Liu ◽  
A Tovar ◽  
D Detwiler
2015 ◽  
Vol 95 ◽  
pp. 208-220 ◽  
Author(s):  
Punit Bandi ◽  
Duane Detwiler ◽  
James P. Schmiedeler ◽  
Andrés Tovar

Author(s):  
A. Midha ◽  
I. Her ◽  
B. A. Salamon

Abstract A broader research proposal seeks to systematically combine large-deflection mechanics of flexible elements with important kinematic considerations, in yielding compliant mechanisms which perform useful tasks. Specifically, the proposed design methodology will address the following needs: development of the necessary nomenclature, classification and definitions, and identification of the kinematic properties; categorization of mechanism synthesis types, both structurally as well as by function; development of efficient computational techniques for design; consideration of materials; and application and validation. Contained herein, in particular, is an introduction to the state-of-the-art in compliant mechanisms, and the development of an accurate chain calculation algorithm for use in the analysis of a large-deflection, cantilevered elastica. Shooting methods, which permit specification of additional boundary conditions on the elastica, as well as compliant mechanism examples are presented in a companion paper.


2019 ◽  
Vol 137 ◽  
pp. 433-435 ◽  
Author(s):  
Mostafa Asadi Khanouki ◽  
Mohammad Hossein Javadi Aghdam ◽  
Farjad Shadmehri

2020 ◽  
Vol 12 (6) ◽  
Author(s):  
Joep P. A. Nijssen ◽  
Giuseppe Radaelli ◽  
Charles J. Kim ◽  
Just L. Herder

Abstract Compliant shell mechanisms utilize thin-walled structures to achieve motion and force generation. Shell mechanisms, because of their thin-walled nature and spatial geometry, are building blocks for spatial mechanism applications. In spatial compliant mechanism design, the ratio of compliance is the representation of the kinetostatics involved. Using shell mechanisms in concept design, however, can prove difficult without a uniform characterization method. In this article, we make use of compliance ellipsoids to achieve characterization of the ratio of compliance for shell mechanisms. Ten promising shells are presented with the kinetostatic characteristics, combined with a uniform method of determining the kinetostatic characteristics for other unknown shells. Finally, we show how shells are indeed a valid alternative in the spatial mechanism design, compared to conventional flexure mechanisms.


Sign in / Sign up

Export Citation Format

Share Document