Results 21 to 30 of about 3,544,164 (276)

Inverse kinematic analysis for triple-octahedron variable-geometry truss manipulators [PDF]

open access: yes, 2001
In this paper, a new triple-octahedron variable-geometry truss manipulator is presented. Its inverse kinematic solutions in closed form are studied. An input-output displacement equation in one output variable is derived.
Xu, L. J.   +7 more
core   +1 more source

Evolution of global and local deformation in additively manufactured octet truss lattice structures

open access: yesAdditive Manufacturing Letters, 2021
Additively manufactured lattice truss structures, often referred to as architected cellular materials, present significant advantages over conventional structures due to their unique characteristics such as high strength-to-weight ratios and surface area-
Elliott W. Jost   +2 more
doaj   +1 more source

Method for determination of optimal geometrical parameters of a unit cell of X-shaped truss cores

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Recently, in order to develop high-strength lightweight core materials of sandwich structures for multi-functional applications, a large number of truss structures have been created, including pyramidal and tetrahedral truss cores.
S. M. Mousavi Safavi
doaj   +1 more source

Flight Planning for Survey-Grade 3D Reconstruction of Truss Bridges

open access: yesRemote Sensing, 2022
Autonomous UAV 3D reconstruction has been widely used for infrastructure inspections and asset management. However, its applications on truss structures remain a challenging task due to geometric complexity and the severe self-occlusion problem of the ...
Zhexiong Shang, Zhigang Shen
doaj   +1 more source

Numerical analysis and optimization of large dimensioned structures considering stress concentrations in welded joint [PDF]

open access: yesMATEC Web of Conferences, 2022
The paperpresents an optimal design and computational solution of truss structures consideringstress concentrations in welded joints. The calculation approach for precise analysis of welded joints using finite element method is introduced.
Majko Jaroslav   +5 more
doaj   +1 more source

Analysis of the Optimal Span-Height Ratio and the Isolation Performance of the Square Pyramid Space Truss Structures

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2020
In order to study the reasonable span-height ratio and isolation performance of the structure under the action of earthquake, a series of square pyramid space truss structural models are established.
GU Zhenyuan; SHEN Wuqin; CHEN Runbo
doaj   +1 more source

Search and Rescue Optimization Algorithm for Size Optimization of Truss Structures with Discrete Variables [PDF]

open access: yesNumerical Methods in Civil Engineering, 2019
In this paper, a new metaheuristic algorithm is developed to sizing optimization of truss structures with discrete variables. The proposed algorithms namely search and rescue optimization algorithm (SAR), imitates the exploration behavior of humans ...
A. Shabani, B. Asgarian, M. Salido
doaj   +1 more source

Parametric design of graded truss lattice structures for enhanced thermal dissipation [PDF]

open access: yes, 2019
Truss lattice structures are intricate geometries, whose fabrication has recently been simplified by the development of Additive Manufacturing (AM) technologies. These lightweight geometries present great volume densities and surface-to-occupancy ratios,
PERNOT, Jean-Philippe   +3 more
core   +1 more source

Robustness Analysis and Important Element Evaluation Method of Truss Structures

open access: yes, 2021
Robustness and vulnerability are important evaluation criteria for structural safety to improve progressive collapse resistance. Modeling rapid evaluation on important elements in the conceptual analysis stage is an essential and efficient way to ensure ...
Jian Feng   +5 more
core   +1 more source

The impact of truss structure on stiffness by finite element method [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2017
In this study was to evaluate the impact of the truss structure on stiffness and stress distribution in the truss structural members. Made and synchronizes this structures with any Populus_ Nigra lumbers, in finally made 44 truss structure with 11 ...
Ehsan Ketabi, Amir Lashgari
doaj   +1 more source

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