Verificação de modelos computacionais para placas com enrijecedores submetidas a carregamento transversal uniforme

Troina, Grégori da Silva; Queiroz, João Pedro Teixeira Peixoto de; Cunha, Marcelo Langhinrichs; Rocha, Luíz Alberto Oliveira; Santos, Elizaldo Domingues dos; Isoldi, Liércio André

doi:10.18605/2175-7275/cereus.v10n2p285-298

Cited by 3 publications

(9 citation statements)

References 5 publications

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“…The material of the plate and the stiffeners was steel with E and ν of 206.84 GPa and 0.3, respectively. According to Figure 4, as a result of the mesh convergence study, the values achieved by the developed computational model converge narrowly with the ones found in [7]. However, they are not similar to the values found by the other authors.…”

Section: Verification Of the Computational Model For The Stiffened Platementioning

confidence: 56%

“…To ensure that the computational model is according to the reality that it is meant to simulate, it is possible to validate or verify it. The validation procedure was based on a comparison between the results obtained by the numerical model and laboratory experiments [7,10]. The verification procedure consisted of confronting the generated numerical results with the numerical results obtained by other authors and/or with values of analytical resolutions [11].…”

Section: Computational Modelingmentioning

confidence: 99%

“…Similarly, the model for the stiffened plates was verified by comparing its values of central deflection to the ones obtained by the numerical research executed by [3,4,6,7]. The stiffened plate was considered as simply supported, having a constant pressure of 68.95 kPa applied in the negative z-direction on its surface without stiffeners (see Figure 3).…”

Section: Verification Of the Computational Model For The Stiffened Platementioning

confidence: 99%

“…Differences of 26.95%, 40.26%, and 30.55% were found when comparing the results of the present work with those obtained by [3,4,6], respectively. As reported by [7], this difference is due to the fact that a less accurate finite element than the SHELL93 was employed, such as in [6], which used the SHELL63 finite element for the plate. Besides, the mesh used by these older studies [3,4,6] was likely too coarse.…”

Section: Verification Of the Computational Model For The Stiffened Platementioning

confidence: 99%

“…The steel or concrete slabs were simulated with the software ANSYS ® , using shell elements (SHELL63) for modeling the plate and beam elements (BEAM44) for the stiffeners. Moreover, from [7], four computational models for stiffened plates using the finite element SHELL93 (triangular and quadrilateral) and SOLID95 (tetrahedral and hexahedral), also by means of the software ANSYS ® , were suggested. All the models were verified by comparing their results with the ones obtained by other authors used as a reference.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Geometric Evaluation of Stiffened Steel Plates Subjected to Transverse Loading for Naval and Offshore Applications

Queiroz

Cunha

Pavlović

et al. 2019

JMSE

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This work searched for the optimal geometrical configuration of simply supported stiffened plates subjected to a transverse and uniformly distributed load. From a non-stiffened reference plate, different geometrical configurations of stiffened plates, with the same volume as the reference plate, were defined through the constructal design method. Thus, applying the exhaustive search technique and using the ANSYS software, the mechanical behaviors of all the suggested stiffened plates were compared to each other to find the geometrical configuration that provided the minimum deflection in the plate’s center when subjected to this loading. The optimum geometrical configuration of stiffeners is presented at the end of this work, allowing a reduction of 98.57% for the central deflection of the stiffened plate if compared to the reference plate. Furthermore, power equations were adjusted to describe the deflections for each combination of longitudinal and transverse stiffeners as a function of the ratio between the height and the thickness of the stiffeners. Finally, a unique equation for determining the central deflections of the studied stiffened plates based only on the number of longitudinal stiffeners without significantly losing accuracy has been proposed.

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Section: Verification Of the Computational Model For The Stiffened Platementioning

confidence: 56%

Section: Computational Modelingmentioning

confidence: 99%

Section: Verification Of the Computational Model For The Stiffened Platementioning

confidence: 99%

Section: Verification Of the Computational Model For The Stiffened Platementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Geometric Evaluation of Stiffened Steel Plates Subjected to Transverse Loading for Naval and Offshore Applications

Queiroz

Cunha

Pavlović

et al. 2019

JMSE

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Analysis Through Constructal Design of the Influence of Spacing Between Stiffeners in the Deflection of Plates

Portela¹,

Pinto²,

Rocha³

et al. 2020

MUNDI ETG

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Using the Finite Element Method (FEM), stiffened plates arrangements defined by the application of the Constructal Design Method (CDM) were analyzed. So that, through an Exhaustive Search (ES), different spacing between the stiffeners were tested regarding the central and maximum deflections. Starting from a non-stiffened plate with a fixed volume, a portion of its material was completely removed from its thickness and transformed into stiffeners considering the volumetric fraction 𝜙 = 0.5. It were established 4 arrangements: P(2,2), P(2,3), P(3,2) and P(3,3), varying for each one, the spacing between the stiffeners, as well as the parameter hs/ts (ratio between height and thickness of stiffeners). The results showed that stiffeners equally spaced in the longitudinal and transverse directions with higher ratios hs/ts are more effective, being able to reduce the central and maximum deflections by more than 95% compared to the non-stiffened reference plate.

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Proposta de implementação de estratégias de marketing de serviço por meio da introdução de práticas de Kaizen no processo de Milk Run – estudo de caso na RG Transportes

Mendes¹,

Costa²,

Barbosa³

et al. 2022

Revista Científica Multidisciplinar Núcleo do Conhecimento

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O presente artigo aborda um estudo de caso realizado na empresa RG transportes e equipamentos LTDA, que atua no segmento de transporte e locação de equipamentos da cidade de Manaus. Sendo assim, para a elaboração deste, inicialmente, realizou-se um diagnóstico a partir da análise dos ambientes internos e externos da organização. Em seguida, identificou-se que a área de Marketing possui grande fator significativo na geração de valor para empresa, rendimento de sua produtividade e estabilidade em seus serviços, além de criação de estratégias e fidelização de clientes. Nesse contexto, tem-se como questão norteadora: quais estratégias relacionadas à ferramenta Kaizen podem ser implementadas na empresa RG transportes e equipamentos LTDA para melhorar o nível do processo de coleta do Milk Run? Portanto, tem-se como objetivo geral propor a implementação de melhorias direcionadas aos processos de marketing da empresa investigada, visando melhorias no serviço de Milk Run por meio de práticas de ações Kaizen. Para isso, adotou-se como metodologia a pesquisa quali-quantitativa, baseada em uma pesquisa exploratória e bibliográfica. Como proposta de ferramenta interventiva, utilizou- se a ferramenta de qualidade PDCA, a partir da qual sugeriu-se a montagem da equipe de Kaizen para analisar e implementar os processos de melhoria contínua gradativa. Propôs-se à organização: elaborar um plano de treinamento para padronização na prestação de serviços; alinhar a cultura organizacional com as políticas Kaizen; implementar ferramentas de qualidade Kaizen; melhorar o processo de coletas através do Milk Run e criar feedback sobre RNC (Relatório de Não Conformidade) no processo de transportes. Por fim, espera-se que, ao aplicar as propostas deixadas neste estudo, a organização possa atingir eficiência logística dos processos de coleta e entrega de serviços e produtos, de modo a melhorar o nível de serviço logístico e, por consequência, o marketing de serviço da organização.

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Verificação de modelos computacionais para placas com enrijecedores submetidas a carregamento transversal uniforme

Cited by 3 publications

References 5 publications

Geometric Evaluation of Stiffened Steel Plates Subjected to Transverse Loading for Naval and Offshore Applications

Geometric Evaluation of Stiffened Steel Plates Subjected to Transverse Loading for Naval and Offshore Applications

Analysis Through Constructal Design of the Influence of Spacing Between Stiffeners in the Deflection of Plates

Proposta de implementação de estratégias de marketing de serviço por meio da introdução de práticas de Kaizen no processo de Milk Run – estudo de caso na RG Transportes

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