Relevant bibliographies by topics / Mechanisms design

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Mechanisms design'

Author: Grafiati
Published: 7 February 2023

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Journal articles on the topic "Mechanisms design"

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Dworczak, Piotr. "Mechanism Design With Aftermarkets: Cutoff Mechanisms." Econometrica 88, no. 6 (2020): 2629–61. http://dx.doi.org/10.3982/ecta15768.

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I study a mechanism design problem in which a designer allocates a single good to one of several agents, and the mechanism is followed by an aftermarket—a post‐mechanism game played between the agent who acquired the good and third‐party market participants. The designer has preferences over final outcomes, but she cannot design the aftermarket. However, she can influence its information structure by publicly disclosing information elicited from the agents by the mechanism. I introduce a class of allocation and disclosure rules, called cutoff rules, that disclose information about the buyer's type only by revealing information about the realization of a random threshold (cutoff) that she had to outbid to win the object. When there is a single agent in the mechanism, I show that the optimal cutoff mechanism offers full privacy to the agent. In contrast, when there are multiple agents, the optimal cutoff mechanism may disclose information about the winner's type; I provide sufficient conditions for optimality of simple designs. I also characterize aftermarkets for which restricting attention to cutoff mechanisms is without loss of generality in a subclass of all feasible mechanisms satisfying additional conditions.
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Tichánek, Radek. "Dasy Based Tool for The Design of Ice Mechanisms." Journal of Middle European Construction and Design of Cars 13, no. 3 (December 1, 2015): 33–40. http://dx.doi.org/10.1515/mecdc-2015-0013.

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Shrnutí Článek prezentuje nastroj pro navrhovani novych mechanismů spalovaciho motoru založeny na znalostni databazi DASY. Z mechanismů motoru byl vybran rozvodovy mechanismus OHC na kterem byl nastroj vyvinut a testovan. Nastroj obsahuje kinematicky a dynamicky model rozvodu napojeny na klikovy mechanismus. Podrobnou kalibraci a naslednou validaci třech dynamickych modelů s měřenymi daty, byly ziskany hodnoty neznamych parametrů modelů, ktere jsou zaznamenany v DASY a mnohe parametry jsou přimo použitelne pro navrh noveho mechanismu i při změně geometrie některych časti. V članku jsou prezentovany tři postupy použite nejen pro kalibraci, ale take pro identifikaci vlivu neznamych parametrů na průběh zrychleni ventilu a jeho kmitani. Nastroj byl použit pro navrhy obrysů vaček pro prototyp realneho mechanismu.
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Majid, Tuba, and Bruce W. Jo. "Status and Challenges on Design and Implementation of Camber Morphing Mechanisms." International Journal of Aerospace Engineering 2021 (December 14, 2021): 1–14. http://dx.doi.org/10.1155/2021/6399937.

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This paper presents state-of-the-art technologies of camber morphing mechanisms from the perspectives of design and implementation. Wing morphing technologies are aimed at making the aircraft more energy or aerodynamically efficient during flight by actively adjusting the wing shape, but their mechanism designs and implementation aspects are often overlooked from practical sense in many technical articles. Thus, it is of our interest that we thoroughly investigate morphing mechanisms and their nature of design principles and methodologies from the implementation and test flight aspects, navigate the trends, and evaluate progress for researchers’ methodology selection that possibly turns to design and build stages. This paper categorizes the camber morphing mechanisms from a wide collection of literature on morphing wings and their mechanisms, and the defined classifications are based on mechanism’s design features and synthesis methodology, i.e., by the tools and methods used to solve the design problem. The categories are (1) structure-based, (2) material-based, and (3) hybrid. Most of the structure-based camber morphing mechanisms have distinctive structural features; however, the material-based camber morphing mechanisms make use of material properties and tools to enhance the elastic nature of its structures. Lastly, the hybrid morphing mechanisms are a combination of both the aforementioned categories. In summary, this review provides researchers in the field of morphing mechanisms and wings with choices of materials, actuators, internal and external structure design for wings, and overarching process and design methodologies for implementation with futuristic and practical aspects of flight performance and applications. Moreover, through this critical review of morphing mechanism, selective design criteria for appropriate morphing mechanisms are discussed.
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Bergemann, Dirk, and Juuso Välimäki. "Dynamic Mechanism Design: An Introduction." Journal of Economic Literature 57, no. 2 (June 1, 2019): 235–74. http://dx.doi.org/10.1257/jel.20180892.

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We provide an introduction to the recent developments of dynamic mechanism design, with a primary focus on the quasilinear case. First, we describe socially optimal (or efficient) dynamic mechanisms. These mechanisms extend the well-known Vickrey– Clark–Groves and D’Aspremont–Gérard–Varet mechanisms to a dynamic environment. Second, we discuss revenue optimal mechanisms. We cover models of sequential screening and revenue-maximizing auctions with dynamically changing bidder types. We also discuss models of information management where the mechanism designer can control (at least partially) the stochastic process governing the agents’ types. Third, we consider models with changing populations of agents over time. After discussing related models with risk-averse agents and limited liability, we conclude with a number of open questions and challenges that remain for the theory of dynamic mechanism design. ( JEL D44, D81, D82)
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Pons, Dirk John, and John Kenneth Raine. "Design mechanisms and constraints." Research in Engineering Design 16, no. 1-2 (September 16, 2005): 73–85. http://dx.doi.org/10.1007/s00163-005-0008-9.

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YE, Wei. "Design of Reconfigurable Parallel Mechanisms with Discontinuously Movable Mechanism." Journal of Mechanical Engineering 51, no. 13 (2015): 137. http://dx.doi.org/10.3901/jme.2015.13.137.

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Jensen, Brian D., and Larry L. Howell. "Identification of Compliant Pseudo-Rigid-Body Four-Link Mechanism Configurations Resulting in Bistable Behavior." Journal of Mechanical Design 125, no. 4 (December 1, 2003): 701–8. http://dx.doi.org/10.1115/1.1625399.

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Bistable mechanisms, which have two stable equilibria within their range of motion, are important parts of a wide variety of systems, such as closures, valves, switches, and clasps. Compliant bistable mechanisms present design challenges because the mechanism’s energy storage and motion characteristics are strongly coupled and must be considered simultaneously. This paper studies compliant bistable mechanisms which may be modeled as four-link mechanisms with a torsional spring at one joint. Theory is developed to predict compliant and rigid-body mechanism configurations which guarantee bistable behavior. With this knowledge, designers can largely uncouple the motion and energy storage requirements of a bistable mechanism design problem. Examples demonstrate the power of the theory in bistable mechanism design.
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Chen, Dar-Zen, and Wei-Ming Pai. "A Methodology for Conceptual Design of Mechanisms by Parsing Design Specifications." Journal of Mechanical Design 127, no. 6 (March 8, 2005): 1039–44. http://dx.doi.org/10.1115/1.2044767.

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In this paper, design specifications for the conceptual design of mechanisms are parsed into three coherent categories: functional requirements, structural requirements, and design constraints. Based on functional requirements, the functioning kinematic chain of a mechanism can be constructed by connecting the functioning links accordingly. From structural requirements, admissible kinematic structures are searched from the existing atlases of kinematic structures. Those admissible kinematic structures, which comprise at least one segment with the same characteristics of the functioning kinematic chain, are identified as compatible kinematic structures. Thus, feasible mechanisms that fulfill design specifications can be yielded by labeling joints in the compatible kinematic structures subject to design constraints. With this methodology, classified design specifications are used to guide designer through various stages of the conceptual design process in a systematic manner. The creation of the variable-stroke engine mechanism [Freudenstein, F., Maki, E. R., 1983, “Development of an Optimum Variable-Stroke Internal-Combustion Engine Mechanism From the Viewpoint of Kinematic Structure,” ASME J. Mech., Trans., Automat., Des., Vol. 105, pp. 259–267] is used as an illustrative example.
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Hartline, Jason D. "Approximation in Mechanism Design." American Economic Review 102, no. 3 (May 1, 2012): 330–36. http://dx.doi.org/10.1257/aer.102.3.330.

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This paper considers three challenge areas for mechanism design and describes the role approximation plays in resolving them. Challenge 1: optimal mechanisms are finely tuned to precise details of the distribution on agent preferences. Challenge 2: in environments with multi-dimensional agent preferences economic analysis has failed to provide general characterizations optimal mechanisms. Challenge 3: optimal mechanisms are parameterized by unrealistic knowledge of the distribution of agents' private preferences. This paper surveys positive resolutions to these challenges with emphasis on basic techniques and their relevance to theory and practice.
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Cheng, Yingjie, Peng Song, Yukun Lu, Wen Jie Jeremy Chew, and Ligang Liu. "Exact 3D Path Generation via 3D Cam-Linkage Mechanisms." ACM Transactions on Graphics 41, no. 6 (November 30, 2022): 1–13. http://dx.doi.org/10.1145/3550454.3555431.

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Exact 3D path generation is a fundamental problem of designing a mechanism to make a point exactly move along a prescribed 3D path , driven by a single actuator. Existing mechanisms are insufficient to address this problem. Planar linkages and their combinations with gears and/or plate cams can only generate 2D paths while 1-DOF spatial linkages can only generate 3D paths with rather simple shapes. In this paper, we present a new 3D cam-linkage mechanism, consisting of two 3D cams and five links, for exactly generating a continuous 3D path. To design a 3D cam-linkage mechanism, we first model a 3-DOF 5-bar spatial linkage to exactly generate a prescribed 3D path and then reduce the spatial linkage's DOFs from 3 to 1 by composing the linkage with two 3D cam-follower mechanisms. Our computational approach optimizes the 3D cam-linkage mechanism's topology and geometry to minimize the mechanism's total weight while ensuring smooth, collision-free, and singularity-free motion. We show that our 3D cam-linkage mechanism is able to exactly generate a continuous 3D path with arbitrary shape and a finite number of C 0 points, evaluate the mechanism's kinematic performance with 3D printed prototypes, and demonstrate that the mechanism can be generalized for exact 3D motion generation.
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Dissertations / Theses on the topic "Mechanisms design"

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Chen, Yan. "Design of structural mechanisms." Thesis, University of Oxford, 2003. http://ora.ox.ac.uk/objects/uuid:6423e5a6-5438-496a-835d-242fe1d5cd97.

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In this dissertation, we explore the possibilities of systematically constructing large structural mechanisms using existing spatial overconstrained linkages with only revolute joints as basic elements. The first part of the dissertation is devoted to structural mechanisms (networks) based on the Bennett linkage, a well-known spatial 4R linkage. This special linkage has been used as the basic element. A particular layout of the structures has been identified allowing unlimited extension of the network by repeating elements. As a result, a family of structural mechanisms has been found which form single-layer structural mechanisms. In general, these structures deploy into profiles of cylindrical surface. Meanwhile, two special cases of the single-layer structures have been extended to form multi-layer structures. In addition, according to the mathematical derivation, the problem of connecting two similar Bennett linkages into a mobile structure, which other researchers were unable to solve, has also been solved. A study into the existence of alternative forms of the Bennett linkage has also been done. The condition for the alternative forms to achieve the compact folding and maximum expansion has been derived. This work has resulted in the creation of the most effective deployable element based on the Bennett linkage. A simple method to build the Bennett linkage in its alternative form has been introduced and verified. The corresponding networks have been obtained following the similar layout of the original Bennett linkage. The second effort has been made to construct large overconstrained structural mechanisms using hybrid Bricard linkages as basic elements. The hybrid Bricard linkage is a special case of the Bricard linkage, which is overconstrained and with a single degree of mobility. Starting with the derivation of the compatibility condition and the study of its deployment behaviour, it has been found that for some particular twists, the hybrid Bricard linkage can be folded completely into a bundle and deployed to a flat triangular profile. Based on this linkage, a network of hybrid Bricard linkages has been produced. Furthermore, in-depth research into the deployment characteristics, including kinematic bifurcation and the alternative forms of the hybrid Bricard linkage, has also been conducted. The final part of the dissertation is a study into tiling techniques in order to develop a systematic approach for determining the layout of mobile assemblies. A general approach to constructing large structural mechanisms has been proposed, which can be divided into three steps: selection of suitable tilings, construction of overconstrained units and validation of compatibility. This approach has been successfully applied to the construction of the structural mechanisms based on Bennett linkages and hybrid Bricard linkages. Several possible configurations are discussed including those described previously. All of the novel structural mechanisms presented in this dissertation contain only revolute joints, have a single degree of mobility and are geometrically overconstrained. Research work reported in this dissertation could lead to substantial advancement in building large spatial deployable structures.
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Douglas, Graeham Rees. "Design of stent expansion mechanisms." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42137.

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Stents are widely used in the treatment of vascular disease and they represent one of the most valuable medical device markets. It has been observed that the mechanical characteristics of a stent influences clinical outcomes. This thesis is concerned with the design of expansion mechanisms of balloon expandable stents based on the principles of lattice mechanics. Balloon expandable vascular stents are mesh-like, tubular structures used mainly to prop open narrowed arteries, and also to provide sealing and anchorage in a stent-graft for treatment of aneurysms or dissections. Presence of a spatially repeating geometric pattern of a `unit' or a cell is a striking feature of stents. Lattice mechanics deals with such spatially periodic materials and structures. The focus is on the plastic expansion phase of a stent from the initial crimped configuration. The elastic post-expansion phase is also considered. Eight unit cell-based stent designs are selected for this work. Their expansion characteristics are analyzed and measured. Analytical methods based on kinematics of stent expansion mechanisms are presented first which are then validated with more detailed Finite Element (FE) calculations. Analytical methods developed in this work aid rapid design calculations in selecting appropriate unit cell geometries. Three of the designs are manufactured through laser micromachining and tested for their expansion characteristics. The analytical methods were validated as they predicted similar expansion characteristics as finite element and experiment. Additionally, the study confirmed that stent designs with positive, negative, or zero axial strain over expansion is possible. Finally, the study suggest that unit cell design can be tailored to obtain desired length-diameter and pressure-diameter characteristics over the expansion phase of stenting.
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Can, Fatih Cemal. "Inertial Parameter Design Of Spatial Mechanisms." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1254895/index.pdf.

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In this thesis, the inertial parameters of a spatial mechanism are used in order to optimize various aspects of the dynamic behaviour of the mechanism (such as minimizing actuator torque/ force fluctuations, shaking force/moment balancing, etc.) while the effects of loads are considered as well. Here, inertial parameters refer to the mass, 6 elements of the inertia tensor and coordinates of the center of mass of the links. The concept of Force Fluctuation Number (FFN) is utilized to optimize the dynamic behaviour of the mechanism. By using the FFN concept, one obtains a number of linear equations to be satisfied by the optimal inertial parameters. In general, the number of such equations is less than the number of the inertial parameters. Therefore, some of the inertial parameters may be selected freely in order to satisfy other design constraints. Using MATHEMATICA, a program has been developed to obtain the linear equations to be satisfied by the optimal inertial parameters. The developed program includes a kinematic and force analysis module, which can be used independently for a complete kinematic and dynamic analysis of any one degree of freedom, single loop, spatial mechanism. The different closures of the mechanism may be identified by using the developed package and these analyses can be performed on any selected closure of the mechanism.
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Demir, Eralp. "Kinematic Design Of Mechanisms In A Computer Aided Design Environment." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606012/index.pdf.

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CADSYN (Computer Aided Design SYNthesis) is a visual, interactive computer program working under Computer Aided Design (CAD) enviroment, which accomplishes the synthesis and analysis of planar four-bar mechanisms. The synthesis tasks are motion generation, path generation and function generation. During synthesis, the dyadic approach is utilized which introduces vector pairs and complex number algebra to model the motion. The possible solutions can be limited for link dimensions, the center circle point curves within a certain region, transmission angle characteristics, branch and order defects. The designed mechanism can be analyzed for velocity, acceleration and transmission angle and any of the data can be exported to Excel®
for further analysis. The software is designed to provide the user maximum feasible number of solutions. In four multiply separated position synthesis, if there is flexibility in the value(s) of one or any number of input parameter(s), designer can obtain different Burmester curves by changing those parameter(s). Designer can also simulate the kinematics of the mechanism by using drawing functions that are available from the CAD iv enviroment at any time. Drawing parts in the design plane can be attached to any link of the mechanism and can be simulated throughout the motion as part of the link it is attached. As a whole, this computer program is designed to satisfy the needs of mechanism designers while working in CAD enviroment.
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Chen, Li. "Information and Preferences in Matching Mechanisms." Doctoral thesis, Universite Libre de Bruxelles, 2016. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/235227.

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This thesis consists of three independent essays on the design of matching markets, with a primary goal to understand how information interacts with matching mechanisms especially in the applications to school choice and college admissions. The first chapter compares theoretically the non-strategyproof Boston mechanism and the strategy-proof deferred acceptance mechanism when taking into account that students may face uncertainty about their own priorities when submitting preferences, one important variation from the complete information assumption. The second chapter evaluates the effectiveness of a strategy-proof mechanism when students have to submit preferences before knowing their priorities using both theory and data. The third chapter turns attention to a new mechanism that is sequentially implemented and can encourage truth-telling. Nevertheless, such implementation often faces time constraint. This chapter therefore offers an inquiry of the pros and cons of the time-constrained sequential mechanism.
Doctorat en Sciences économiques et de gestion
info:eu-repo/semantics/nonPublished
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Weight, Brent L. "Development and design of constant-force mechanisms /." Diss., CLICK HERE for online access, 2001. http://contentdm.lib.byu.edu/ETD/image/etd137.pdf.

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Li, Qin. "Design and analysis of electronic feedback mechanisms." Thesis, Royal Holloway, University of London, 2012. http://repository.royalholloway.ac.uk/items/4fe8fab3-7727-645b-7ab3-88fcb9eb0942/9/.

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With the advent and development of modern information technology, such as the Internet, the difficulty in transmitting data has been reduced significantly. This makes it easier for entities to share their experience to a larger extent than before. In this thesis, we study the design and analysis of feedback mechanisms, which are the information systems that enable entities to learn information from others' experience. We provide a framework for feedback mechanisms. We first provide an abstract model of a feedback mechanism which defines the scope of our concept and identifies the necessary components of a feedback mechanism. We then provide a framework for feedback mechanisms. This provides a global and systematic view of feedback mechanisms. We also use our model and framework to decompose and analyse several existing feedback mechanisms. We propose an electronic marketplace which can be used for trading online services such as computational resources and digital storage. This marketplace incorporates a dispute prevention and resolution mechanism that is explicitly designed to encourage the good conduct of marketplace users, as well as providing important security features and being cost-effective. We also show how to incorporate the marketplace into Grid computing for exchanging computational resources. We propose a novel feedback mechanism for electronic marketplaces. In this setting, the role of feedback is no longer a “shadow of the future”, but a “shadow of the present”. In other words, feedback directly impacts on the seller's payoff for the current transaction instead of future transactions. This changes the fundamental functionality of feedback, which solves many inherent problems of reputation systems that are commonly applied in electronic marketplaces. We provide a novel announcement scheme for vehicular ad-hoc networks (VANETs) based on a reputation system in order to evaluate message reliability. This scheme features robustness against adversaries, efficiency and fault tolerance to temporary unavailability of the central server.
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Lumbers, Jeremy. "Rotating biological contactors : mechanisms, modelling and design." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47161.

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Weight, Brent Lewis. "Development and Design of Constant-Force Mechanisms." BYU ScholarsArchive, 2002. https://scholarsarchive.byu.edu/etd/3.

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This thesis adds to the knowledge base of constant-force mechanisms (CFMs). It begins by reviewing past work done in the area of CFMs and then develops new nondimensionalized parameters that are used to simplify the calculations required to design a CFM. Comparison techniques are then developed that utilize these non-dimensionalized parameters to compare mechanisms based on stiffnesses, percent constant-force, actual lengths, normal displacements, and feasible design orientations. These comparison techniques are then combined with optimization to define new mechanisms with improved performance and range of capabilities. This thesis also outlines a design process, methods to identify mechanisms that are suitable for a given design problem, and relationships and trends between variables. The thesis concludes by discussing the adaptation of CFMs for use in electrical contacts and presenting the results of a design case study which successfully developed a constant-force electrical contact (CFEC).
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Mackay, Allen Boyd. "Large-displacement linear-motion compliant mechanisms /." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1845.pdf.

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Books on the topic "Mechanisms design"

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Beran, Jaroslav, Martin Bílek, Monika Hejnova, and Petr Zabka, eds. Advances in Mechanisms Design. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5125-5.

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Yang, Ting-Li, Anxin Liu, Huiping Shen, LuBin Hang, Yufeng Luo, and Qiong Jin. Topology Design of Robot Mechanisms. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-5532-4.

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Hazell, Paul J. Ceramic armour: Design, and defeat mechanisms. Canberra, Australia: Argos Press, 2006.

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Eckhardt, Homer D. Kinematic design of machines and mechanisms. New York: McGraw-Hill, 1998.

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Compliant mechanisms: Design of flexure hinges. Boca Raton: CRC Press, 2003.

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Mechanisms of democracy: Institutional design writ small. Oxford: Oxford University Press, 2007.

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1955-, Conley Peter, Packard Douglas, and Purdy William, eds. Space vehicle mechanisms: Elements of successful design. New York: Wiley, 1998.

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Pichler, Pegaret. Primary market design: Direct mechanisms and markets. Milan: Fondazione Eni Enrico Mattei, 2004.

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Angeles, Jorge. Optimization of cam mechanisms. Dordrecht: Kluwer Academic, 1991.

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Malik, Akhtar-Nawaz. The design of spatial parallel platform-type mechanisms. Salford: University of Salford, 1992.

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Book chapters on the topic "Mechanisms design"

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Sebestyen, George, Steve Fujikawa, Nicholas Galassi, and Alex Chuchra. "Deployment Mechanisms." In Low Earth Orbit Satellite Design, 161–71. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-68315-7_10.

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Feijs, Loe M. G., Hans B. M. Jonkers, and Cornelis A. Middelburg. "Mechanisms for Naming." In Notations for Software Design, 103–24. London: Springer London, 1994. http://dx.doi.org/10.1007/978-1-4471-2107-7_5.

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Engelstein, Geoffrey, and Isaac Shalev. "Card Mechanisms." In Building Blocks of Tabletop Game Design, 527–60. 2nd ed. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003179184-13.

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Engelstein, Geoffrey, and Isaac Shalev. "Card Mechanisms." In Building Blocks of Tabletop Game Design, 441–61. Boca Raton, FL : Taylor & Francis, 2019.: CRC Press, 2019. http://dx.doi.org/10.1201/9780429430701-13.

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Koski, J., A. Osyczka, J. Zajac, F. Pfeiffer, H. H. Müller-Slany, D. H. van Campen, R. Nagtegaal, and A. J. G. Schoofs. "Mechanisms and Dynamic Systems." In Multicriteria Design Optimization, 151–228. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-48697-5_5.

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Lin, Peng, Xiaojun Feng, and Qian Zhang. "Auction Mechanisms." In Auction Design for the Wireless Spectrum Market, 7–18. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06799-5_2.

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Núñez, Matías. "Towards Transparent Mechanisms." In The Future of Economic Design, 341–46. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18050-8_47.

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Stephenson, John A., and Ken M. Wallace. "Design for Reliability for Mechanisms." In Design for X, 245–67. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-3985-4_13.

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Demange, Gabrielle. "Mechanisms in a Digitalized World." In Studies in Economic Design, 307–22. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-93809-7_19.

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Simionescu, I., M. Ene, and L. Ciupitu. "Optimum Design of Cam Mechanisms." In Mechanisms, Transmissions and Applications, 151–59. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2727-4_14.

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Conference papers on the topic "Mechanisms design"

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Midha, Ashok, Tony W. Norton, and Larry L. Howell. "On the Nomenclature and Classification of Compliant Mechanisms: Abstractions of Mechanisms and Mechanism Synthesis Problems." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0385.

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Abstract A compliant mechanism is one which gains all or part of its mobility from the relative flexibility of its members rather than from rigid-body joints only. Compliant mechanisms offer clear advantages, such as need for fewer parts, less wear, noise and backlash due to clearances, when compared to rigid-body mechanisms performing similar functions. This important field is expected to undergo significant growth as materials with superior properties are developed. In the development of compliant mechanisms, the establishment of nomenclature and classification is of primary importance. This paper discusses common representations, i.e. names and diagrams, for a compliant mechanism. Names and diagrams will be shown to be similar because they represent “abstractions” of the same mechanism. The concept of “levels of abstraction” is introduced, and common levels of abstraction are identified. The relevance of this concept to the naming of mechanisms is shown by applying it to both rigid-body and compliant mechanism examples. Nomenclature is proposed for several of the common levels of abstraction, and issues involved in naming mechanisms are discussed. Finally, a discussion of synthesis types is presented, as are the advantages, disadvantages, and issues involved in the synthesis of a compliant mechanism.
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Hetrick, Joel A., and Sridhar Kota. "Size and Shape Optimization of Compliant Mechanisms: An Efficiency Formulation." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5943.

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Abstract Compliant mechanisms are jointless mechanical devices that take advantage of elastic deformation to achieve a force or motion transformation. A milestone toward systematic design of compliant mechanisms has been the development of topology optimization techniques. The next logical step is to incorporate size and shape optimization to identify the exact dimensional form of the mechanism. A new objective formulation based on maximizing the mechanical efficiency of a compliant mechanism is developed in order to perform the size and shape optimization. An advantage of this formulation is that precise control over the mechanism’s mechanical or geometric advantage can be enforced during optimization. Finite element beam models are used to perform dimensional synthesis of planar compliant mechanisms. This technique allows stress constraints to limit the maximum stress in the mechanism which improves the mechanism’s durability and flexibility. Resulting optimized mechanisms exhibit efficient mechanical transmission and meet kinematic and stress requirements. Several examples are given to demonstrate the effectiveness of the optimization procedure.
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BRITTON, WILLIAM. "Aerospace mechanisms development." In Aerospace Design Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1992. http://dx.doi.org/10.2514/6.1992-1203.

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Opdahl, Patrick G., Brian D. Jensen, and Larry L. Howell. "An Investigation Into Compliant Bistable Mechanisms." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5914.

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Abstract This paper proposes a new class of bistable mechanisms: compliant bistable mechanisms. These mechanisms gain their bistable behavior from the energy stored in the flexible segments which deflect to allow mechanism motion. This approach integrates desired mechanism motion and energy storage to create bistable mechanisms with dramatically reduced part count compared to traditional mechanisms incorporating rigid links, joints, and springs. This paper briefly reviews bistable mechanism theory, introduces some additional bistable mechanism characteristics, and integrates this theory with compliant mechanism theory. The resulting theory of bistable compliant mechanisms is validated by measuring the force and motion characteristics of several test mechanisms and comparing them to predicted values.
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Luck, Kurt, and Karl-Heinz Modler. "Burmester-Theory for Band-Mechanisms." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0277.

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Abstract A band-mechanism includes inter alia a flexible band and a disk-profile. Such a mechanism can excellent be used for path-generation, better than a four-bar-linkage. Also several plane-positions additionally can be realized. This paper investigates the synthesis of four-bar-band-mechanisms by using the complex vector-algebra. Several technical tasks demonstrate the flexible application of such mechanisms. This tasks are formulated analogous to the wellknown BURMESTER-THEORY, but with higher claims and the solution is done by analytical methods. Further it is demonstrated that a four-bar-linkage is a special case of a four-bar-band-mechanism.
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Tsai, Ming J., and Hong W. Lee. "The Transmissivity and Manipulability of Spatial Mechanisms." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0393.

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Abstract A method of evaluating the transmission performance for spatial mechanisms is developed using the reciprocity of screws. The actual transmission performance of a spatial mechanism should be composed of two parts: the ability of the output that can be effectively generated by the mechanism is called the “transmissivity,” and the ability of the input that can be effectively absorbed into the rest part of the mechanism is called the “manipulability.” A more generalized index for the total transmission performance of spatial mechanisms is then defined and illustrated by some spatial four-link mechanisms.
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Chuenchom, Tushchai, and Sridhar Kota. "Generalized Synthesis of Adjustable Mechanisms." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0304.

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Abstract Conventional mechanisms (cams, gears, and linkage-based that are typically single degree of freedom) are being increasingly replaced by multi-degree of freedom multi-actuators integrated with logic controllers. This new trend in sophistication although provides greatly enhanced flexibility, there are many instances where the flexibility needs are exaggerated and the associated complexity is unnecessary. On the other hand, the conventional mechanisms cannot fulfill multi-task requirements due to lack methods to design-in flexibility. Adjustable mechanisms or “programmable” mechanisms provide a cost-effective middle ground between hard automation and overly flexible expensive robots; especially for tasks that demand only limited flexibility. This paper presents a generalized synthesis procedure for designing adjustable robotic mechanisms for path generation. The goal is to develop a methodology to synthesize a single mechanism that can trace a given set of three-dimensional trajectories by simply adjusting one of the mechanism parameters; say the length of a particular link. The synthesis procedure presented in this paper entails coupler curve classification and pattern recognition techniques, eleven precision-point (Burmester theory) synthesis of geared five-bar mechanisms, multi-objective optimization and statistical analysis.
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Parkinson, Matthew B., Larry L. Howell, and Jordan J. Cox. "A Parametric Approach to the Optimization-Based Design of Compliant Mechanisms." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/dac-3763.

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Abstract Several optimization-based strategies have been proposed for compliant mechanism design that do not rely on the experience or intuition of the designer. This paper demonstrates an optimization-based method wherein compliant mechanisms are modeled parametrically within an optimization and a finite element analysis package. Topological optimization is performed to minimize an objective function representing the fitness of the design. This methodology exploits the nonlinear nature of compliant mechanisms and augments optimization-based methods previously proposed. Using this method, constant-force mechanisms optimized for a displacement from 4% to 25% of the mechanism’s total length were predicted to remain within 3.58% of constant force. Results from the testing of fabricated mechanisms are: for 4–25% displacement, within 7.5% constant force; for 18–65% displacement, within 2.3%. Path generation mechanisms were designed with similarly encouraging results.
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Murphy, Morgan D., Ashok Midha, and Larry L. Howell. "On the Mobility of Compliant Mechanisms." In ASME 1994 Design Technical Conferences collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/detc1994-0291.

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Abstract The topological synthesis for a compliant mechanism leads to a very large number of design options from which to select a final design. Therefore, an evaluation of a mechanism’s ability to meet selected criteria provides a means of reducing a large number of possible designs to a smaller set of acceptable designs. One criterion deals with a mechanism’s potential mobility. For mechanisms containing flexible members, the response to inputs, in general, is comprised of both rigid-body and elastic deflections of their members. This paper deals primarily with the development of a technique for the determination of mobility characteristics of compliant mechanisms, employing a mathematical model previously developed for compliant mechanisms.
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Korves, Brian A., Brian J. Slaboch, and Philip A. Voglewede. "Mechanism State Matrices for Spatial Reconfigurable Mechanisms." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-71361.

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This paper improves augmented mechanism state matrices by replacing joint code with screw system notation. The proposed substitution allows for a more specific description of the joints in the mechanism and the capability to describe both spatial and planar mechanisms. Examples are provided which elucidate the proposed approach.
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Reports on the topic "Mechanisms design"

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Landis, Clark R. Mechanisms and Design in Homogeneous Catalysis. Office of Scientific and Technical Information (OSTI), May 2010. http://dx.doi.org/10.2172/979723.

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Suo, Zhigang. Investigations on Degradation Mechanisms for Ferroelectric Actuator Design. Fort Belvoir, VA: Defense Technical Information Center, September 1998. http://dx.doi.org/10.21236/ada361484.

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Ganesh, Shriram, Maitreya Natu, Adarshpal Sethi, Rommie Hardy, and Richard Gopaul. Design Approaches for Stealthy Probing Mechanisms in Battlefield Networks. Fort Belvoir, VA: Defense Technical Information Center, September 2008. http://dx.doi.org/10.21236/ada487331.

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Howie Choset. Design and Sensor-Based COntrol for Hyper-Redundant Mechanisms. Office of Scientific and Technical Information (OSTI), May 2006. http://dx.doi.org/10.2172/882476.

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Grandy, C., E. Kent, D. Kultgen, M. Weathered, D. Andujar, and A. Borowski. Mechanisms Engineering Test Loop - Flexicask Design and Testing Report. Office of Scientific and Technical Information (OSTI), January 2020. http://dx.doi.org/10.2172/1603654.

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Choset, Howie. Design and Sensor-Based Control for Hyper-Redundant Mechanisms. Office of Scientific and Technical Information (OSTI), June 2002. http://dx.doi.org/10.2172/835406.

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Choset, Howie. Design and Sensor-Based Control for Hyper-Redundant Mechanisms. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/835407.

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Freudenstein, Ferdinand, and David A. Hoeltzel. The Development of an Expert System for the Creative Design of Mechanisms. Fort Belvoir, VA: Defense Technical Information Center, June 1989. http://dx.doi.org/10.21236/ada211115.

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Landis, C. R. Mechanisms and design in homogeneous catalysis. Final report, April 15, 1995--April 14, 1998. Office of Scientific and Technical Information (OSTI), December 1998. http://dx.doi.org/10.2172/319629.

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M.J. McKelvy, H. Bearat, A.V.G. Chizmeshya, R. Nunez, and R.W. Carpenter. UNDERSTANDING OLIVINE CO2 MINERAL SEQUESTRATION MECHANISMS AT THE ATOMIC LEVEL: OPTIMIZING REACTION PROCESS DESIGN. Office of Scientific and Technical Information (OSTI), August 2003. http://dx.doi.org/10.2172/822896.

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