Analysis of LEMs slider mechanisms based on equivalent coupling stiffness
工程科学学报, 2016 The flexure hinge is the key part to implement the movement of lamina emergent mechanisms(LEMs). Designing a flexure hinge with good flexibility and high accuracy is always the key problem to research compliant mechanisms.
YIN Si-qi +3 more
doaj +1 more source
A nonlinear macroelement formulation for the seismic analysis of masonry buildings [PDF]
, 2017 A macroelement is presented for the nonlinear dynamic analysis of masonry structures under seismic actions. The macroelement, developed in the framework of the equivalent frame model, has a force-based formulation and accounts for flexural and shear ...
Addessi, D. +2 more
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Evaluation of seismic performance of X bracing systems equipped with flexural yielding dampers [PDF]
Journal of Structural and Construction Engineering, 2017 The X-bracing system is one of the lateral loads bearing system. In X-bracing system’s elements, axial plastic hinges (compressive or tensile) will be formed instead of flexural hinges which are not capable to absorb high energy.
Mussa Mahmoudi Sahebi, Farshid Khanjani
doaj +1 more source
Quasi-Static Folding and Deployment of Ultrathin Composite Tape-Spring Hinges [PDF]
, 2011 Deployable structures made from ultrathin composite materials can be folded elastically and are able to selfdeploy by releasing the stored strain energy.
Mallikarachchi, H. M. Y. C. +1 more
core +1 more source
On trying to say what “goes without saying”. Wittgenstein on certainty and ineffability
Ricerche di Pedagogia e Didattica, 2014 This paper offers a philosophical outlook on the subject of the communication of certainty and uncertainty, by focusing on the later Ludwig Wittgenstein’s image of “hinges”.
Anna Boncompagni
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Control of a multi-degree of freedom worktool for vibrations assisted forging [PDF]
, 2014 This paper addresses the control of a tool developed to superimpose vibrations along several directions on a piece during forging. Piezoelectric actuators are used to provide the required forces and speeds.
ABBA, Gabriel +5 more
core +4 more sources
From refined estimates for spherical harmonics to a sharp multiplier theorem on the Grushin sphere [PDF]
, 2019 We prove a sharp multiplier theorem of Mihlin-H\"ormander type for the Grushin operator on the unit sphere in $\mathbb{R}^3$, and a corresponding boundedness result for the associated Bochner-Riesz means.
Casarino, Valentina +2 more
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Hinge solitons in three-dimensional second-order topological insulators
, 2020 A second-order topological insulator in three dimensions refers to a topological insulator with gapless states localized on the hinges, which is a generalization of a traditional topological insulator with gapless states localized on the surfaces.
Dai, Ning +4 more
core +1 more source
On the Scalar Curvature of Einstein Manifolds [PDF]
, 1997 We show that there are high-dimensional smooth compact manifolds which admit pairs of Einstein metrics for which the scalar curvatures have opposite signs. These are counter-examples to a conjecture considered by Besse.
Catanese, Fabrizio, LeBrun, Claude
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Supersymmetry without Grassmann Variables [PDF]
, 2001 Supersymmetry transformations may be represented by unitary operators in a formulation of supersymmetry without numbers that anti-commute. The physical relevance of this formulation hinges on whether or not one may add states of even and odd fermion ...
Cahill, Kevin
core +4 more sources