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Syed Samran Ali Shah, Abdul Rahim Asif, Waqas Ahmed, Ihtisham Islam, Muhammad Waseem, Hammad Tariq Janjuhah and George Kontakiotis
Shear modulus (SM) and damping ratio (DR) are significant in seismic design and the performance of geotechnical systems. The evaluation of soil reactions to dynamic loads, such as earthquakes, blasts, train, and traffic vibrations, necessitates the estim...
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Shouping Shang and Zhen Wang
Damping is one of the important issues related to isolated structures, including the newly proposed low-cost spring-asphalt isolation system. In this study, the damping properties of the system in terms of displacement dependence, frequency dependence an...
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Luca Taraborrelli, Robyn Grant, Matthew Sullivan, Simon Choppin, James Spurr, Steve Haake and Tom Allen
The tennis racket has developed since the origins of Lawn Tennis in the 1870s. This study investigated how the tennis racket developed from 1874 to 2017, using measurements and material classifications for 525 samples. Racket measurements covered geometr...
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Guangyu Du, Zhen Tan, Guohao Li, Dechun Ba and Kun Liu
NiCrAlY coating was prepared on a stainless steel substrate by an arc ion plating machine and the annealing experiments were carried out at different temperatures using a tube furnace. The effects of annealing temperatures on the morphology, structure, c...
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Weisheng Xu, Yingna Zhu, Haoran Kang, Qing Xu, Qipei Han, Xiangwei Song and Zhenwei Liu
Clay soil has poor engineering properties such as poor permeability and low shear strength. Waste steel slag is an industrial by-product formed in the furnace during the steelmaking process which has high quality, durability, anti-slip properties, gellin...
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Anna Chiaradonna
The first step for learning any calculation code for seismic response analysis is an adequate understanding of how to properly set the boundary conditions and the properties of the soil model at the initial stage, i.e., before the shaking event. To pursu...
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Stefano Amadori, Giuseppe Catania and Angelo Casagrande
We wish to add the following statement to the published article [1].[...]
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Janis Karl, Franziska Kirsch, Norbert Faderl, Leonhard Perko and Teresa Fras
Using interlayers of rubber adds a positive effect to the synergy of disruptor?absorber armors. Emerging from its viscoelasticity the material is able to transform mechanical stress into heat. The dynamic mechanical properties of elastomers depend on bot...
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Alvaro Magdaleno, Cesar Pelaez, Alvaro Iglesias-Pordomingo and Antolin Lorenzana
Tuned Mass Dampers are devices which can be assimilated to single-degree-of-freedom systems with a certain amount of moving mass, a natural frequency and a damping ratio intended to be installed on lively structures to reduce the contribution of a certai...
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Song-Hun Chong
This paper proposes a theoretical framework for the characterization of the strain-dependent dynamic properties of soils. The analysis begins with an analytical constitutive model for soils under steady-state cyclic loading. The model describes the domin...
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Geice Paula Villibor, Fábio Lúcio Santos, Daniel Marçal de Queiroz, Joseph Kalil Khoury Júnior, Francisco de Assis de Carvalho Pinto
Pág. 41 - 48
Detachment of coffee fruit is usually accomplished by means of mechanical impacts and vibrations applied to the plant. Modal properties of the coffee fruit-stem system represent important information for efficient and selective harvesting. This study aim...
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Moritz Neubauer, Julia Genßler, Vincent Radmann, Fleming Kohlenberg, Michael Pohl, Kurt Böhme, Karsten Knobloch, Ennes Sarradj, Klaus Höschler, Niels Modler and Lars Enghardt
This paper presents a combined experimental and numerical investigation on a novel liner concept for enhanced low-frequency and broadband acoustic attenuation. In particular, two different realizations, derived from conventional Helmholtz resonators (HR)...
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Daniela Szpaczynska, Marian Janusz Lopatka and Piotr Krogul
The elastic-damping properties of the rubber track structure can have a significant impact on the running gear performance of lightweight mobile robots. Taking these properties into account is particularly important for modeling obstacle negotiation and ...
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Nitesh Kumar, Ananda Babu, Alok Kumar Das and Ashish Kumar Srivastava
This paper presents an evaluation of the mechanical properties of nanocomposites when a lower concentration of nanoparticles graphene and ceramics are mixed with epoxy to determine the damping and stability characteristics of hybrid epoxy, using vibratio...
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Shuang Wu, Zhijun Zhao, Dongping Liang, Qunzhi Li and Shougen Zhao
Multiple linear and nonlinear dynamic parameters of the joints at the root of solar panels and between solar panels on spacecraft, both of which have complex nonlinear dynamic properties, were identified by using the force state mapping method for modeli...
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João Parente, Paulo N. B. Reis, M. Neto and A. M. Amaro
Structural sandwich composites have been widely used in many engineering applications, and this trend continues due to their superior mechanical properties, thermal insulation and acoustic damping. However, to further improve their mechanical properties,...
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Suma Ayyagari and Marwan Al-Haik
Carbon fiber reinforced plastic composites (CFRPs) possess superior elastic mechanical properties. However, CFRPs lack sufficient viscoelastic performance, such as damping and creep resistance. In an effort to improve these properties, in this study, hyb...
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Xiaobin Ding, Junxing Zhao, Yaojun Dong and Mi Zhou
We propose a novel inverse analysis method that utilizes shockwaves to detect the operational condition of tested rock. To achieve this back analysis, an in-depth investigation of the dynamic properties of granite specimens was conducted. The dynamic pro...
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Liang Cui, Muhammad Aleem, Shivashankar and Subhamoy Bhattacharya
Fixed-bottom foundations of offshore structures, mainly monopiles, are subject to extreme events and other critical cyclic nature loads. Since offshore wind turbine structures are slender, the manufacturers of offshore wind turbines give a range of frequ...
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Moussa Leblouba, Palani Selvaraj Balaji and Muhammad Ekhlasur Rahman
Wire rope isolators (WRI) are devices that dissipate vibrational energy. They are used in various industrial applications to protect equipment and machinery. Heavy machinery and limited space are still some of the constraints engineers face when designin...
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