Experimental vibration analysis for a 3D scaled model of a three-floor steel structure

Castillo, Ernesto; Cruchaga, Marcela

doi:10.1590/s1679-78252012000500005

Cited by 5 publications

(4 citation statements)

References 18 publications

(28 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Indian subcontinent have also faced heavy devastating earthquakes like Bhuj Earthquake (2001), Indian ocean Tsunami (2004), Kashmir Earthquake (2005) which resulted in great loss of citizen and infrastructure of respective nation. Since, earthquake is unavoidable, and the lives are lost not because of earthquake but because of the adverse effects created by earthquake which mainly includes destruction of buildings due to ground shaking [1][2][3][4][5][6][7]. The condition of failure of building when earthquake struck the foundation of building, the forces which are generated under the ground because of earthquake, forces are transferred to the building through foundation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Jain,

Rajput,

Kuman

et al. 2023

E3S Web of Conf.

View full text Add to dashboard Cite

Hence, it is required to construct such structures which can resist earthquake. The construction of earthquake resistant structures and its effective design is much more required all over the world, particularly, the places where earthquake vulnerability is maximum. This paper is reviewed and tested experimentally for the innovative design of earthquake resistant building which is proposed by engineers and scientists all over the world.in this paper we create multiplex with different link arrangements to minimize the seismic effect and make structure dynamically stable. Other part of the paper concentrates on bolting and busing system with graphene multilayer coting as a vibration isolation and damper.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Jain,

Rajput,

Kuman

et al. 2023

E3S Web of Conf.

View full text Add to dashboard Cite

show abstract

“…A tuned liquid damper consists of a tank partially filled with liquid, usually water, properly tuned to absorber the vibrational excitation energy. Application examples can be found in buildings [1][2][3][4], wind turbines [5,6], bridges [7,8] and offshore structures [9]. Many tall structures have been effectively fitted with TLD devices, resulting in a significant decrease in structural motion [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…Finally, in Sect. 4, the discrete equivalent model is compared to the analytical solution and experimental results of Cooker's sloshing experiment.…”

Section: Introductionmentioning

confidence: 99%

Equivalent mechanical model of rectangular container attached to a pendulum compared to experimental data and analytical solution

Morais

Lopez

Martins

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

A tuned liquid damper (TLD) is a passive control device that transfers kinetic energy from the main structure to a liquid sloshing in a tank. The mechanical description of a sloshing liquid contained in a tank requires an intricate mathematical formulation. An alternative technique describes the TLD dynamic behavior as an equivalent mechanical model comprising a series of pendulums or mass-spring systems attached to the tank walls. To validate this approach, this paper compares the discrete model to experimental results and an analytical solution for a rectangular container attached to a pendulum (pendulum-slosh problem). At first, the fundamental oscillation period of the discrete model, representing a rectangular tank, is compared to experimental data and a classic analytical solution. Finally, we compare the pendulum-slosh problem modeled as a discrete model with the analytical solution and experimental results.

show abstract

“…For Leake & Borgerson (2015), this method is based on the relationship between stress and deformation of a material and can represent actual situations occurred in the field, possibly reducing design time and costs with prototypes. He et al (2010), Petracconi et al (2010), Yildiz & Duzgun (2010), Castillo & Cruchaga (2012), Magalhães et al (2012) and Figueiredo et al (2016) presented several applications of the technique with experimental results. Important results were obtained in agricultural engineering using structural simulations, such as in Magalhães et al (2006), Celik et al (2011), Nilnont et al (2012, Li et al (2013), Oliveira et al (2014), Silva et al (2014) and Hernandez et al (2016), and also in studies on vibration conducted by Pinho et al (2014) and Almeida et al (2015).…”

mentioning

confidence: 99%

Structural static and modal frequency simulations in a coffee harvester’s chassis

Silva

Andrade

et al. 2018

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

A B S T R A C TCoffee harvesters are subject to stresses and vibrations in their structure, originating from engines and harvesting system. These structures must be designed to avoid rupturing of the components due to fragility of the materials, inadequate geometries, or the phenomenon of resonance, which increases the displacements/deformations of the components. In this scenario, the main objective of this study is to analyse the results of stresses and displacements from two static simulations and to present results of natural vibration frequencies from two modal simulations in a self-propelled coffee harvester. For this purpose, 20 modal shapes were generated, considering coffee harvester reservoir as empty and full. The simulations were carried out using the finite element method in which actual boundary conditions were applied to the motor chassis of the harvester. As results, stresses above the material's yield strength were observed in some regions of the components. Greater displacements were observed at the rear of the chassis, suggesting a new positioning of the rear wheel to obtain a uniform load distribution. Some natural frequencies, which presented greater displacements/deformations, can be affected by the operation of the main motor, also associated with the vibrating system in the coffee harvest, which may cause rupture of components.Simulações estrutural estática e de frequências modais no chassi de uma colhedora de café R E S U M O As colhedoras de café estão sujeitas a esforços e vibrações em sua estrutura, oriundos de motores e do sistema de derriça de café. Estas estruturas devem ser projetadas de modo a evitar ruptura dos componentes, em razão da fragilidade dos materiais, geometrias inadequadas, ou pelo fenômeno de ressonância, o qual amplia os deslocamentos/deformações dos componentes. Neste cenário, objetivou-se com o presente trabalho analisar resultados de tensões e deslocamentos provenientes de duas simulações estáticas e apresentar resultados de frequências naturais de vibração de duas simulações modais em uma colhedora de café automotriz. Para este fim, geraram-se 20 formas modais, considerando o reservatório da colhedora vazio e cheio de café. As simulações foram realizadas pelo método dos elementos finitos em que foram aplicadas condições de contorno reais no chassi motor da colhedora. Como resultados, observaram-se regiões dos componentes com tensões acima do limite de escoamento do material. Verificaram-se também, na parte traseira do chassi, maiores deslocamentos, o que sugere novo posicionamento da roda traseira para obtenção de distribuição uniforme das cargas. Algumas frequências naturais, que apresentaram maiores deslocamentos/deformações, podem ser atingidas pelo funcionamento do motor principal associado também ao sistema de vibradores na derriça do café, podendo causar ruptura de componentes.

show abstract

Experimental vibration analysis for a 3D scaled model of a three-floor steel structure

Cited by 5 publications

References 18 publications

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Equivalent mechanical model of rectangular container attached to a pendulum compared to experimental data and analytical solution

Structural static and modal frequency simulations in a coffee harvester’s chassis

Contact Info

Product

Resources

About