Modeling the Performance of Horizontal Anchor Lines During Fall Arrest
Journal Title: Fibres and Textiles in Eastern Europe - Year 2017, Vol 25, Issue 5
Abstract
The basic materials used for the construction of anchor lines for personal equipment protection against falls from a height are ropes and textile webbing. During fall arrest, horizontal anchor lines significantly affect the forces acting on the worker and the work site elements, as well as the fall arrest distance. Manufacturers of the equipment are required to estimate those parameters for various conditions of use by numerical simulations with a validated model. The model discussed in this paper reflects the mechanical structure of the line (whether singles-span or multi-span) taking into account Maxwell’s and Kelvin–Voigt’s non-linear rheological models for viscoelastic materials. The model consists of a system of seven non-linear differential equations with the parameters describing static load-elongation characteristics and time-courses of dynamic loading forces for selected ropes and textile webbing. The numerical model developed was used to simulate the performance of horizontal anchor lines of different constructions. The model was validated by comparing the numerical calculations with laboratory test results and was shown to be sufficiently accurate to be used for designing fall protection equipment.
Authors and Affiliations
Krzysztof Baszczyński
Keywords
Related Articles
- EP ID EP221824
- DOI 10.5604/01.3001.0010.4634
- Views 101
- Downloads 0
New Image Analysis Method for Determination of the Inter-Fibre Pore Size Intensity of Polyester Woven Barrier Fabrics
Porosity is an important characteristic of a filter textile, which affects permeability and retention properties. Determination of the inter-yarn and inter-fibre pore sizes of barrier textiles is also required to assess...
Zastosowanie analizy obrazu do automatycznej oceny gęstości tkanin o dużej zwartości
Dla zrealizowania pomiarów gęstości tkanin o dużej zwartości opracowano metodę oceny opartą o zależności strukturalne. Zależności strukturalne typowych tkanin HTWF, o splocie skośnymi i satynowym analizowano i opracowano...
Study on the Effects of Perfume on the Mechanical and Colour Properties of Silk Fabrics
Perfumes are generally used to enhance the attitude of the person. Deodorants and perfumes are designed to be applied directly to the skin. Some people with sensitive skin may find that their skin does get irritated if t...
Study on Thermal Insulation Properties of Aluminised Aramid Fabrics
In order to prevent or minimise skin burn damage resulting from high temperature, a kind of thermal insulation composite fabric, the surface of which is aluminised, was developed. In this study, the thermal insulation pr...
Badanie właściwości cieplnych materiałów dzianych pokrywanych ceramicznie
W pracy przedstawiono badania procesów termoregulacji materiałów włókienniczych, modyfikowanych ceramiką, stosowanych w niskich temperaturach. Bio-ceramiczne dodatki charakteryzują się zdolnością zatrzymywania ciepła, dz...