Results 11 to 20 of about 14,374,293 (389)

Short Cantilever Rock Beam Structure and Mechanism of Gob-Side Entry Retaining Roof in Reuse Period

open access: yesShock and Vibration, 2020
In the reuse stage of a gob-side entry retaining, failure of the structure and stability of the main roof have a significant effect on the safety of the advanced support and ventilation space at the working face.
Jingke Wu   +6 more
doaj   +2 more sources

Impact Resistance Analysis and Optimization of Variant Truss Beam Structure Based on Material Properties. [PDF]

open access: yesMaterials (Basel), 2021
In order to meet the increasing application requirements with regards to structural impact resistance in industries such as mining, construction, aerospace engineering, and disaster relief and mitigation, this paper designs a variant truss beam structure
Li X, Pan J, Zhou X.
europepmc   +2 more sources

Study on Band Gap Characteristics of Phononic Crystal Double-Layer Beam Structure Attached by Multilayer Cylinder

open access: yesCrystals, 2023
Intended for the vibration and noise control problems faced by many engineering fields, a fresh variety of phononic crystal beam structure was constructed by attaching a one-dimensional periodic multilayer cylinder to a double-layer beam structure ...

semanticscholar   +1 more source

A Novel Damage Indicator Based on the Electromechanical Impedance Principle for Structural Damage Identification

open access: yesSensors, 2018
This paper presents a novel structural damage detection indicator, i.e., fourth-order voltage statistical moment (FVSM) based on the electromechanical impedance (EMI) principle, and then proposes a two-step damage detection method based on the novel ...
Pin Zhou, Dansheng Wang, Hongping Zhu
doaj   +1 more source

Analysis on the Difference of Impact Response between Single Coal-Rock Particle and the Box Structure-Based Tail Beam

open access: yesShock and Vibration, 2021
In the process of coal caving, the basis of identifying coal and rock by the vibration signal is the difference of the tail beam response when coal-rock impacts the tail beam, and the tail beam in the hydraulic support is a complex box structure with ...
Li-rong Wan, Zhe Li, Yang Yang, Ran Li
doaj   +1 more source

Structural Damping with Friction Beams [PDF]

open access: yesShock and Vibration, 2007
In the last several years, there has been increasing interest in the use of friction joints for enhancing damping in structures. The joints themselves are responsible for the major part of the energy dissipation in assembled structures. The dissipated work in a joint depends on both the applied normal force and the excitation force.
L. Gaul, Jens Becker, J. Roseira
openaire   +3 more sources

Structural Assesment of Corroded Beams

open access: yesECS Transactions, 2006
This paper shows how the corrosion and mechanical actions can be taken into account in a simple model for the assessment of structural elements. This work is framed in the Project Benchmark des Poutres de La Rance in which several partners have participated.
Prieto, Miguel   +2 more
openaire   +5 more sources

A nonlinear beam model of photomotile structures [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
Significance Actuation and propulsion are significant challenges in soft robotics. Supply of power typically requires a cumbersome tether or heavy onboard power source. Further, one typically needs to reset the system. Using theory and numerical simulations, we show, in this work, that this challenge can be overcome by the use of ...
Kevin Korner   +4 more
openaire   +4 more sources

A revisit to normalization methods for purpose of stress mode shapes [PDF]

open access: yesFME Transactions, 2020
In order to accurately interpret the results of modal analysis for the purpose of stress mode shapes (SMSs), this work revisits the normalization methods in computational structural dynamics.
Zhou Yadong
doaj  

SEISMIC MITIGATION EFFICIENCY STUDY OF THE COUPLING BEAM DAMPER IN THE SHEAR WALL STRUCTURE

open access: yesCivil Engineering Journal, 2021
Coupling beam damper can be easily repaired in the post-earthquake, which can dissipate the seismic energy of the structure in the earthquake action. In this paper, the seismic mitigation efficiency of the coupling beam damper in the shear wall structure
Xin Huang
doaj   +1 more source

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