Modelling Upholstered Furniture Frames Using the Finite Element Method

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(2), P. 926 - 926

Published: Jan. 18, 2025

This study employs the finite element method to propose a model-based design strategy for upholstered furniture frames. Three-dimensional discrete models of these frames were created, considering orthotropic characteristics pine (Pinus sylvestris L.) and spruce (Picea abies wood, reinforced structurally with glue joints upholstery staples. The modelling process utilised CAE system Autodesk Inventor Nastran, applying (FEM). Static analyses performed by simulating standard loading conditions. calculations incorporated stiffness coefficients frame’s comb joint connections. findings illustrate stress distribution, displacements, equivalent strains within frame models. deformation strength parameters introduce novel perspective on designing structures using component-based FEM approach. These outcomes are applicable development designs.

Language: Английский

The Potential of Artificial Snags to Promote Endangered Saproxylic Beetle Species in Bavarian Forests

Diversity, Journal Year: 2024, Volume and Issue: 16(5), P. 270 - 270

Published: April 30, 2024

The creation of artificial snags, so-called high stumps, within forest management operations is a recently established tool to enrich standing deadwood as habitat for saproxylic species. In this study, we analysed the impact active stump on beetle We selected 63 stumps in six Bavarian districts (Germany), which were felled and subjected close examination, focusing (Coleoptera) colonization. identified emerged coleopteran species belonging 29 families; further 10 taxa only at genus or family level, respectively. Moreover, 17% obtained are listed German Red List Coleoptera. Furthermore, 32% examined trunks, predominantly broad-leaved tree species, harboured taxa. particular, trembling aspen (Populus tremula) showed disproportionately number total richness beetles was independent height, diameter decay stage snags. High (snags) containing tended have higher amounts their surroundings, but difference not significant. According results our actively creating proved be suitable method habitats serve stepping-stones endangered Proactive during harvest can valuable component biodiversity protection forests.

Language: Английский

Environmental problems and biodiversity conservation through silviculture in Sri Lanka: Current state, struggles and cooperation with Czech foresters - A review

Journal of Forest Science, Journal Year: 2024, Volume and Issue: 70(6), P. 281 - 298

Published: June 25, 2024

Sri Lanka, as a developing tropical country, faces serious environmental challenges. Forests, important ecosystems of are under pressure from intensive human activities and climate change. Invasive species represent great hazard to autochthonous plant ecosystems, which are, at the same time, hosts extraordinarily high biodiversity, percentage is endemic. In this paper, we reviewed most challenging problems Lanka suggested improvement number them through silvicultural measures cooperation with international experts, namely Czech foresters. We also main forest biomes addressed specific management different types.

Language: Английский