Method for validating a multi-component safety system

Lan, André; Arteau, Jean; Sirard, Christian

doi:10.1016/j.ssci.2003.08.002

Cited by 5 publications

(6 citation statements)

References 1 publication

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“…Previous collective protection equipment studies, such as the one carried out by [15] that complements PPE is also considered, even though its approach is presented from a different perspective. In this general context, PPE against falls from a height, in particular fall arrest systems, have become a must to control the safety of workers [16,17] where each of the components in the system is critical to protect the worker. The simplest system consists of (a) a full-body harness, (b) connectors, (c) lanyards, (d) a shock absorber, and (e) an anchor [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Optimization on Personal Fall Arrest Systems. Experimental Dynamic Studies on Lanyard Prototypes

Pomares

Carrión

González

et al. 2020

IJERPH

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Tens of thousands of fall-from-height accidents take place at construction sites every year. These types of accidents range from minor to fatal, causing a significant financial burden to enterprises, personal and family traumatic experiences, high medical costs, as well as hard compensation claim settlements. It makes sense then, that some sort of effective personal protective equipment (PPE) be devised to stop these types of accidents from happening. This article aims to explain how PPE can be used to minimize personal injury and the costs implied. The main contribution of this study is that the prototypes made with dynamic ropes and terminals knotted-without an energy absorber-could safely retain falls. Results show that standards EN 354 and EN 364 need to incorporate dynamic test requirements, for the reason that a high loading rate significantly reduces the resistance in static tests that manufacturing companies claim they have. Surprisingly, more than 90 percent of work at heights use PPE without any absorber. Finally, this study calls for the need to accurately determine the dynamic response of PPE in order to further advance in improvements of these fall arrest systems with no energy absorber.

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Section: Introductionmentioning

confidence: 99%

“…Different papers have specifically focused on each of the components. For example, shock absorbers [19,20], harnesses [21,22], connectors [23], anchor devices [24] and even a multi-component system [17,25].…”

Section: Introductionmentioning

confidence: 99%

Optimization on Personal Fall Arrest Systems. Experimental Dynamic Studies on Lanyard Prototypes

Pomares

Carrión

González

et al. 2020

IJERPH

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“…Dependent variables Fm and Fa may be influenced by erratic tearing of the energy absorber stitch, even by some deformation in metal elements of FAS (connectors and buckles) that has been disregarded in the present work. This method has previously been successfully employed by the authors [ 14 , 31 ] and also employed by other authors in their work considering, for example, shock absorbers, harnesses, and even a multicomponent system [ 12 , 21 , 35 , 36 , 37 ].…”

Section: Methodsmentioning

confidence: 99%

“…The FAS is designed according to standard EN 363 [ 10 ] to stop a fall safely [ 11 , 12 , 13 ]. Figure 1 shows a simple FAS, comprising (a) anchor point, (b) energyabsorber lanyard (EAL), and (c) full body harness.…”

Section: Introductionmentioning

confidence: 99%

Average Force of Deployment and Maximum Arrest Force of Energy Absorbers Lanyards

Carrión

Saez

Pomares

et al. 2020

IJERPH

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Energy-absorbing lanyards (EAL) are part of fall arrest systems (FAS), their main mission is to dissipate the energy generated during the fall, ensuring that the arresting force does not cause injury to the user. For the design of FAS as set out in the American standard Z359.6 and the Canadian Z259.16 it is essential to know the deployment force or average arrest force (Fa). Fa is necessary to estimate the elongation that the absorber will suffer during the fall and therefore essential data to calculate the clearance distance. There is a lack of useful experimental data for the design of this personal protective equipment (PPE). This work provides empirical data required for the design of FAS with EAL in accordance with EN 355. This paper covers different types of EAL that are marketed internationally; different empirical data, average and maximum forces, required for improving safety design are researched. Six manufacturers, 10 models, and 2 samples of each model were selected, with total of 20 tests being performed. Dynamic performance tests were carried out, the free fall of a person was simulated using a 100 kg steel ballast from the maximum height allowed by the equipment, obtaining the maximum arrest force (Fm), average deployment force (Fa), and, by calculating the balance of forces, the maximum and average acceleration suffered by the ballast during its arrest. In light of the results, relevant conclusions for user safety are obtained. It is feasible to raise the safety requirements established by the different standards. The Fm can be established below 6 kN in the EAL, and the Fa can be estimated at 87.5% of the Fm. The categorization of the force–time curve in fall arrest with EAL has been obtained. Two EAL purchased on the market exceed the Fm permitted, therefore it is recommended to increase the quality controls of EAL.

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“…The key parameter that alters the focus of the method used is the scope of its implementation, whether it's verification of characteristics or validation of the design. As an example some papers used Testing for validation of the product , other papers for Verification of the characteristics (Lan, Arteau and Sirard, 2004;Santini-Bell et al, 2008) and some with a general focus on V&V (Bucca et al, 2009;Pignataro, Lobaccaro and Zani, 2014).…”

Section: Plm Publications Classificationmentioning

confidence: 99%

Verification and validation: a novel product lifecycle management-based approach

Karkasinas

Rentizelas

2019

IJPLM

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This work sets out to provide clarity on the current use of Verification and Validation (V&V) practices across the product's lifecycle and proposes a novel product lifecycle managementbased V&V approach. By systematically analysing the literature, stages, scope, methods and techniques used for V&V were investigated, leading to classification and clustering of the V&V methods or techniques from the product's lifecycle perspective. The analysis revealed that V&V are not currently addressed as lifecycle processes, they are largely absent from the post-production phases and provided insights on how V&V can be applied across the product's lifecycle by proposing a novel Product Lifecycle Management-based (PLM) approach for V&V. This paper is the first to map the 'as is' V&V practices across the product's lifecycle and supports the engineers and academics on how V&V processes can be applied beyond the internal organizational boundaries by developing a PLM based approach for V&V.

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Method for validating a multi-component safety system

Cited by 5 publications

References 1 publication

Optimization on Personal Fall Arrest Systems. Experimental Dynamic Studies on Lanyard Prototypes

Optimization on Personal Fall Arrest Systems. Experimental Dynamic Studies on Lanyard Prototypes

Average Force of Deployment and Maximum Arrest Force of Energy Absorbers Lanyards

Verification and validation: a novel product lifecycle management-based approach

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