The leaf-type isosceles-trapezoidal flexural (LITF) pivot consists of two compliant beams and two rigid bodies. For a single LITF pivot, the range of motion is small while the center-shift is relatively large. The capability of performance can be improved greatly by the combination of two LITF pivots. Base on the pseudorigid-body (PRB) model of a LITF pivot, a method to construct the double-LITF pivots is presented by regarding a single LITF pivot as a the configurable flexure module. The trends of the center-shift are mainly considered by using this method with the combination of two LIFT pivots. Eight types of double-LITF pivots are synthesized. Compared with the single LIFT pivot, the stroke becomes larger, and stiffness becomes smaller. Four of them have the increased center-shift. The other four have the decreased center-shift. Two of the double-LITF pivots are selected as the examples to explain the proposed method. The comparison between PRB model and finite element analysis result shows the validity and effectiveness of the method.
Skip Nav Destination
Article navigation
Research Papers
A Novel Family of Leaf-Type Compliant Joints: Combination of Two Isosceles-Trapezoidal Flexural Pivots
Yida Hu
Yida Hu
School of Medicine,
University of Pennsylvania
, Philadelphia, PA 19104
Search for other works by this author on:
Xu Pei
Jingjun Yu
Guanghua Zong
Shusheng Bi
Yida Hu
School of Medicine,
University of Pennsylvania
, Philadelphia, PA 19104J. Mechanisms Robotics. May 2009, 1(2): 021005 (6 pages)
Published Online: January 7, 2009
Article history
Received:
January 5, 2008
Revised:
October 20, 2008
Published:
January 7, 2009
Citation
Pei, X., Yu, J., Zong, G., Bi, S., and Hu, Y. (January 7, 2009). "A Novel Family of Leaf-Type Compliant Joints: Combination of Two Isosceles-Trapezoidal Flexural Pivots." ASME. J. Mechanisms Robotics. May 2009; 1(2): 021005. https://doi.org/10.1115/1.3046140
Download citation file:
Get Email Alerts
Design of Rolling Motion for Snake-like Robots using Center-of-Gravity (COG) Shift
J. Mechanisms Robotics
Modelling and Control of Cable Driven Exoskeleton for Arm Rehabilitation
J. Mechanisms Robotics
Design of an underactuated, flexure-based gripper, actuated through a push-pull flexure
J. Mechanisms Robotics
Related Articles
Saint-Venant Decay Rates for the Rectangular Cross Section Rod
J. Appl. Mech (May,2004)
A New External Fixator Design for Femoral Fracture Reduction
J. Med. Devices (June,2008)
The Role of Beam Flexibility and Ground Contact Model in the Clattering of Deformable Beams
J. Dyn. Sys., Meas., Control (June,2004)
Mitigating the Effects of Local Flexibility at the Built-In Ends of Cantilever Beams
J. Appl. Mech (September,2004)
Related Proceedings Papers
Related Chapters
Weldability of High Strength Steels
New Advanced High Strength Steels: Optimizing Properties
Elastic Constant Used in Continuum-Based Adhesion Models
International Symposium on Information Engineering and Electronic Commerce, 3rd (IEEC 2011)
Spring Constants of Elastic Shapes in Contact
Applying the ASME Codes: Plant Piping & Pressure Vessels (Mister Mech Mentor, Vol. 2)