Principle of forecasting
Life-span of mechanical systems - Study of the impact of random solicitation

Add to my library

BM5032 V1 Article

Principle of forecasting


Life-span of mechanical systems - Study of the impact of random solicitation

Authors : Raed KOUTA, Daniel PLAY

Publication date: April 10, 2008 | Lire en français

Add to my library Add to my library

Logo Techniques de l'Ingenieur You do not have access to this resource.
Request your free trial access! Free trial

Already subscribed?

1. Principle of forecasting

The predictive calculation of the service life of a mechanical system or component, used in real-life conditions, is based on four elements:

  • knowledge of the loading (or stress) undergone (figures 1 a and b). Figure 1 a shows the definition of measurement points over time (with a predefined constant time step Δt). Figure 1 b is a reminder of the quantities considered later;

  • an endurance law (often based on the Wöhler curve) (figure

You do not have access to this resource.
Logo Techniques de l'Ingenieur

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource. Click here to request your free trial access!

Already subscribed?


Article included in this offer

"Mechanical functions and components"

( 212 articles )

Complete knowledge base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

View offer details

Dans les ressources documentaires

Durée de vie d’un système mécanique - Modélisation de chargements aléatoires

Cet article traite de la modélisation des sollicitations aléatoires, considérées comme la cause principal...

Durée de vie d’un système mécanique - Analyse de chargements aléatoires

L'étude des différentes approches pour l’analyse de chargements aléatoires a pour objectif d’optimiser le...

Concentration de contrainte, prévision de durée de vie en fatigue

Le calcul en fatigue des assemblages vissés de grandes dimensions peut nécessiter de prendre en compte la...

Modélisation et calcul des assemblages vissés. Généralités

Compte tenu de leur importance dans la construction mécanique, les éléments de fixation filetés font l'ob...

Tous les livres blancs
Toutes les actualités
Contact us