Dynamic Analysis and Wear Mechanisms of Scraper Conveyor Systems
Summary
Scraper conveyor systems are vital for bulk material transport in underground mining and heavy industries, combining a chain-driven scraper assembly and guide troughs or chutes. Their dynamic behaviour arises from the interaction of longitudinal tension, torsional loads and impact forces as payloads are introduced and terrain varies. Vibration modes, including coupled longitudinal and torsional oscillations, influence component fatigue and service life, while abrasive contacts between coal particles and chute surfaces drive progressive wear. Modern research deploys multi-body dynamics, finite-element methods and discrete-element modelling to predict stress distributions, crack initiation and material loss, furnishing a theoretical basis for parameter optimisation, early failure warning and design of wear-resistant surfaces. As energy demands and safety standards rise globally, advances in dynamic analysis and wear mechanism understanding underpin more reliable, efficient conveyor installations and maintenance strategies.
Research from Nature Portfolio
Recent studies have established a coupled longitudinal–torsional vibration model of the scraper chain drive using a Kelvin–Voigt constitutive approach and point-by-point tension analysis. Numerical simulation under light and medium load conditions, verified by experiment, reveals distribution zones of torsional vibration along the chain and quantifies amplitude variations. These findings inform optimisation of scraper geometry and pre-emptive failure prediction, enabling warning thresholds for dynamic overload before critical breakdown.
Dynamic Analysis and Wear Mechanisms of Scraper Conveyor Systems publication trend
The graph below shows the total number of articles in dynamic analysis and wear mechanisms of scraper conveyor systems across all publications each year (not limited to Nature Index journals).
Technical terms
Scraper conveyor: a continuous transport mechanism in which scrapers attached to a chain pull bulk material along a chute.
Chain drive system: the assembly of sprockets, links and chains transmitting power and motion to scrapers.
Longitudinal vibration: oscillatory motion along the direction of chain travel, influenced by tension variations.
Torsional vibration: twisting oscillations of the chain drive system caused by uneven loading or dynamic excitation.
Discrete element method (DEM): a numerical technique modelling individual particles to simulate contact interactions and wear.
Three-body wear: abrasive wear involving two solid surfaces and intervening particles, exacerbating material loss.
References
- Longitudinal torsional vibrations of the chain drive system of mine scraper conveyor. Scientific Reports (2023).
- Dynamic Characteristics of the Chain Drive System of Scraper Conveyor Based on the Speed Difference. IEEE Access (2020).
- Discrete Element Method‐ (DEM‐) Based Study on the Wear Mechanism and Wear Regularity in Scraper Conveyor Chutes. Mathematical Problems in Engineering (2019).
- Dynamic Analysis of the Scraper Conveyor under Abnormal Operating Conditions Based on the Vibration and Speed Characteristics. Shock and Vibration (2021).
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