Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 55 for “"Compliant mechanisms"”.
-
Large-Displacement Linear-Motion Compliant Mechanisms
Linear-motion compliant mechanisms have generally been developed for small displacement applications. The objective of the thesis is to provide a basis for improved large-displacement linear-motion compliant mechanisms (LLCMs). One of the challenges in developing large-displacement compliant …
-
Design and Fabrication of Rotationally Tristable Compliant Mechanisms
… develop the tools necessary to create tristable compliant mechanisms; the work presents the creation of models and concepts for design and a demonstration of the feasibility of the designs through the fabrication of tristable compliant mechanism prototypes on the macro scale. Prior methods to …
-
A STUDY ON NOVEL COMPLIANT MECHANISMS FOR ULTRAPRECISION MACHINING
Ultraprecision machining and compliant mechanisms (CMs) are pivotal in advanced manufacturing, offering superior motion repeatability, zero backlash, and high output quality. This thesis develops three novel CMs for ultraprecision setups: a 1DOF CM with an improved stiffness-to-weight ratio for …
-
Topology Optimization of Nonlinear Elastic Structures and Compliant Mechanisms
… design environment in which solid structures and compliant mechanisms are synthesized. The design tool is based upon the rapidly growing research area of topology optimization which combines structural finite element analysis with nonlinear programming and design sensitivity analysis. The goal of …
-
Design of functionally graded compliant mechanisms using topology optimization
… performance compared to traditional homogeneous compliant mechanism designs. Structural performance is assessed with respect to mechanical/geometric advantage and stress distributions. A novel modified solid isotropic material with penalization (SIMP) method is adopted for representing local …
-
Design and analysis of diagnostic machines utilizing compliant mechanisms
In this paper, the design and testing of an ankle rehabilitation device is presented. The purpose of the research done is to provide physicians with a diagnostics tool that can quantitatively measure the severity of an injury by measuring the ankle joint's functional output. Torque and power output …
-
Design and modeling of carbon nanotube-based compliant mechanisms
… required to adapt macro- and microscale compliant mechanism theory to design carbon nanotube-based nano-scale compliant mechanisms. Molecular simulations of a nano-scale parallel guiding mechanism uncovered three regions of behavior. Region I is governed by the bulk deformation of the …
-
Preliminary Design Approach for Prosthetic Ankle Joints Using Compliant Mechanisms
… using kinematic models of the human ankle and compliant mechanisms technology. Compliant mechanisms offer several potential design advantages over traditional rigid-body designs including high reliability and low cost. These design advantages are ideal for use in prosthetics. Some prosthetic …
-
A continuum mechanic design aid for non-planar compliant mechanisms
… and detailed synthesis aid for the design of compliant mechanisms. The vision behind CoMeT is making the limiting step in flexure design the speed of the user's imagination, not proficiency with software tools. Sophisticated kinematic analysis routines are seamlessly integrated into a three …
-
Design of a prototyping press for 3-d monolithic compliant mechanisms
… them into prototype three-dimensional monolithic compliant mechanisms. These mechanisms have applications in industrial positioning as they are highly accurate and free from normal performance reducers such as friction, wear, and backlash. This thesis presents the design of a prototyping press …
-
Design of a metrology & characterization system for a compliant mechanisms course
… importance of this thesis lies in the benefits compliant mechanisms give to precision engineering. The impact, by improving the quality of designs capable by professional engineers by teaching them about using FACT to design flexures, will contribute to higher quality, more agile, and more …
-
Development of Deployable Wings for Small Unmanned Aerial Vehicles Using Compliant Mechanisms
… This thesis develops approaches to the use of compliant mechanisms in the design of deployable wings for small UAVs. Although deployable wings with rigid-link mechanisms have been used in the past to maintain flight endurance while minimizing required storage volume, compliant mechanisms offer …
-
Compliant Mechanisms to Perform Bearing and Spring Function in High Precision Applications
… become increasingly difficult as the size of mechanisms decrease, and the minimum size of traditional elements such as bearings and springs is limited. The backlash of bearings also limits their usefulness in applications where high precision and repeatability are needed. At small scales and …
-
Design of compliant mechanisms for attenuation of unidirectional vibrations in rotational systems
… was to generate the knowledge required to design compliant mechanisms that (1) attenuate undesired small-motion angular vibrations in rotational power transmission systems and (2) preserve the desired transmission of large-motion torque/angle inputs. This thesis investigates the design of …
-
An Optimization-Based Framework for Designing Robust Cam-Based Constant-Force Compliant Mechanisms
Constant-force mechanisms are mechanical devices that provide a near-constant output force over a prescribed deflection range. This thesis develops various optimization-based methods for designing robust constant-force mechanisms. The configuration of the mechanisms that are the focus of this …
-
An Approach to Concept Development for Compliant Mechanisms Possessing High Coefficients of Restitution
The design of structures and mechanisms subject to impact loading has historically involved designing in such a way as to minimize damage induced by the impact. This has historically been accomplished by absorbing and dissipating the energy of the impact. However, in some applications it is …
-
Predicting the Effects of Dimensional and Material Property Variations in Micro Compliant Mechanisms
… uncertainty analysis methods to apply to micro compliant mechanisms. For simple compliant members, explicit equations can be used in uncertainty analysis. However, for a nonlinear implicit system of equations, the direct linearization method may be used to obtain sensitivities of output …
-
Design, modelling and development of origami-inspired tubular compliant mechanisms towards radially closable applications
… and development of origami-inspired tubular compliant mechanisms tailored for radially closable applications. Origami technology has been extensively explored in engineering applications, and tubular origami structures offer broader functional applications due to their unique 3D geometries. …
-
The Pseudo-Rigid-Body Model for Dynamic Predictions of Macro and Micro Compliant Mechanisms
This work discusses the dynamic predictions of compliant mechanisms using the Pseudo-Rigid-Body model (PRBM). In order to improve the number of mechanisms that can be modeled, this research develops and identifies several key concepts in the behavior of beam segments where both ends are fixed to a …
-
Development of virtual reality software for the design of spatial compliant mechanisms on oculus rift device
… of some of the design guidelines for compliant mechanisms, that were challenging to implement load flow visualization method on pen and paper. Some of the challenges include the three-dimensional visualization of the truncated hemispherical band (intersection between the modified input …
Page 1 of 3