A closed-form model for nonlinear spatial deflections of rectangular beams in intermediate range

R Bai, S Awtar, G Chen - International Journal of Mechanical Sciences, 2019 - Elsevier
Modeling the nonlinear load-displacement relations for flexible beams has been a key
objective in compliant mechanisms research. There have been several practically useful …

Modeling large spatial deflections of slender beams of rectangular cross sections in compliant mechanisms

R Bai, G Chen - Journal of Mechanisms and …, 2021 - asmedigitalcollection.asme.org
Modeling large spatial deflections of flexible beams has been one of the most challenging
problems in the research of compliant mechanism. This study presents an approach called …

Closed-form solution for nonlinear spatial deflections of strip flexures of large aspect ratio considering second order load-stiffening

R Bai, G Chen, S Awtar - Mechanism and Machine Theory, 2021 - Elsevier
Modeling the nonlinear spatial deflections of strip flexures has been a challenging problem
in compliant mechanism research. Although there have been several practically useful …

[HTML][HTML] A spatial closed-form nonlinear stiffness model for sheet flexures based on a mixed variational principle including third-order effects

M Nijenhuis, JP Meijaard, DM Brouwer - Precision Engineering, 2020 - Elsevier
The sheet flexure is commonly used to provide support stiffness in flexure mechanisms for
precision applications. While the sheet flexure is often analyzed in a simplified form, eg by …

Proof-of-concept study of flexible lattice variable sweptback wing

L Chengyang, Z Xiaotian, L Ruizhi, X Tiandong - AIAA Journal, 2023 - arc.aiaa.org
This paper presents a flexible lattice variable sweptback wing (FLVSW) concept based on
the flexible main beam and lattice that allows the sweptback angle to be varied by 80 deg …

Nonlinear strain energy formulation of spatially deflected strip flexures

R Bai, N Yang, B Li, G Chen - Mechanism and Machine Theory, 2024 - Elsevier
Modeling spatial deflections of strip flexures in compliant mechanisms has been one of the
most challenging problems due to the nonlinear coupling effects between bending, torsion …

Experimental characterization of a large-range parallel kinematic XYZ flexure mechanism

S Awtar, J Quint, J Ustick - Journal of …, 2021 - asmedigitalcollection.asme.org
Previously, we reported the conceptual design of a novel parallel-kinematic flexure
mechanism that provides large and decoupled motions in the X, Y, and Z directions, along …

An explicit nonlinear model for large spatial deflections of symmetric slender beams

Y Chen, S Yao, L Liu, MQH Meng - International Journal of Non-Linear …, 2024 - Elsevier
Flexible slender beams are commonly used in compliant mechanisms and continuum
robots. However, the modeling of these beams can be complicated due to the geometric …

Determinate design and analytical analysis of a class of symmetrical flexure guiding mechanisms for linear actuators

G Hao - Journal of Mechanical Design, 2017 - asmedigitalcollection.asme.org
This paper designs and analyses a class of single-axis translational flexure guiding
mechanisms for linear actuators. The proposed flexure mechanisms have symmetrical …

A multinode superelement in the generalized strain formulation

K Dwarshuis, M Ellenbroek, R Aarts… - Multibody System …, 2022 - Springer
Abstract Design and optimization of flexure mechanisms and real time high bandwidth
control of flexure based mechanisms require efficient but accurate models. The flexures can …