Výsledky vyhledávání - "HADDAR, Mohamed"

Akademický článek

Effect of elastic couplings on the dynamic behavior of transmission systems

Autor: Bouslema, Marwa, Fakhfakh, Taher, Nasri, Rachid, Haddar, Mohamed

Publikováno v: Comptes Rendus. Mécanique, Vol 350, Iss G2, Pp 343-359 (2022)

The aim of the present work is to analyze the sensibility of an elastic coupling on the coupled Frequency Response Functions (FRFs) of transmission mechanical systems. The FRF of a linked system, such as a reducer stage, is determined by a receptance

Externí odkaz: https://doaj.org/article/fa7f69efdd4f4ba1ac2997851ba4fac0

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Akademický článek

Operational modal analysis using order-based analysis in a two-stage planetary gear with mechanical power recirculation

Autor: Mbarek, Ayoub, Fernández, Alfonso, Hammami, Ahmed, Chaari, Fakher, Viadero, Fernando, Haddar, Mohamed

Publikováno v: Comptes Rendus. Mécanique, Vol 350, Iss G2, Pp 391-411 (2022)

Modal analysis techniques are considered as the most used of techniques allowing the characterization of the dynamic behaviour in systems such as planetary gear transmission. During operational conditions, the modal behaviour can be altered. The main

Externí odkaz: https://doaj.org/article/ca0b65c655564595b6f0b215d986b6b5

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Akademický článek

Estimation of the damping model of a spur gear pair system including a time-varying loading

Autor: Yousfi, Nourhaine, Zghal, Bacem, Akrout, Ali, Walha, Lassaad, Haddar, Mohamed

Publikováno v: Comptes Rendus. Mécanique, Vol 350, Iss G2, Pp 255-267 (2022)

The integral method was used in a previous research to identify the damping model but this technique has some limitations in estimating the damping model in a gear system including time-varying loading conditions. To overcome these limitations, the i

Externí odkaz: https://doaj.org/article/8264ec50a7d44a89868e3c7736c12ed6

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Akademický článek

Tooth defect detection in planetary gears by the current signature analysis: numerical modelling and experimental measurements

Autor: Boudhraa, Safa, Fernandez del Rincon, Alfonso, Chaari, Fakher, Haddar, Mohamed, Viadero, Fernando

Publikováno v: Comptes Rendus. Mécanique, Vol 349, Iss 2, Pp 275-298 (2021)

Monitoring transmission systems is a huge scientific focus to prevent any anomaly and malfunctioning damaging the system. Several methods were used to investigate the gears behaviour and mainly its state. And until the last century, vibrations signal

Externí odkaz: https://doaj.org/article/4a035fb91a4c48ec99d8fe5606a75eed

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Akademický článek

Modal energetic analysis and dynamic response of worm gear drives with a new developed dynamic model

Autor: Chakroun, Ala Eddin, Hammami, Ahmed, De-Juan, Ana, Chaari, Fakher, Fernandez, Alfonso, Viadero, Fernando, Haddar, Mohamed

Publikováno v: Comptes Rendus. Mécanique, Vol 349, Iss 2, Pp 241-258 (2021)

In order to investigate the behaviour of worm drives, a new dynamic model, composed of two blocks, is established and used to extract numerical results. The tooth deflection of the worm drive, bearings, and wheels inertias are taken into consideratio

Externí odkaz: https://doaj.org/article/5691c2c692ba48929ed7dcb57fad43c5

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Akademický článek

Plastic-damage-response analysis of glass/polyester filament wound structures: 3D meso-scale numerical modelling, experimental identification and validation

Autor: Boussetta, Hajer, Laksimi, Abdelouahed, Kebir, Hocine, Beyaoui, Moez, Walha, Lassaad, Haddar, Mohamed

Publikováno v: Comptes Rendus. Mécanique, Vol 348, Iss 5, Pp 315-333 (2020)

The aim of this paper is to propose a theoretical meso-model describing the nonlinear behaviour of filament wound glass–polyester composite structures based on a progressive damage and failure analysis. This model has been implemented in the finite

Externí odkaz: https://doaj.org/article/d69de43f45f444e7b6abe6b700a82346

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