Energy consumption and energy efficiency improvement of overhead crane’s mechanisms

Abstract

EnErgy consumption and EnErgy EfficiEncy improvEmEnt of ovErhEad cranE's mEchanisms EnErgochłonność i poprawa EfEktywności EnErgEtycznEj mEchanizmów suwnicy pomostowEjThe article presents the numerical investigation of the overhead crane's energy consumption. The analysis is based on the hybrid model of the crane consisting of numerical model of drive mechanisms as bridge, trolley, hoist and also experimentally measured power consumption of each control unit. The numerical model was verified experimentally on the real crane. The investigation focuses on analyzing the energy consumption of the overhead crane in relation both to the travelled distance and also for the lifting and lowering heights of a suspended payload. Particular attention was paid on the cases straightly related to the hoist, as a main factor of improvements in the energetic efficiency of the overhead crane. Energy consumption was investigated for a variety of magnitudes of transported mass.

Identification of crashworthiness indicators of column energy absorbers with triggers in the form of cylindrical embossing on the lateral edges using artificial neural networks

“…In paper [8] the authors illustrated this using fatigue crack length as an example, while paper [3] applied the network to aircraft engine failure prediction. An interesting look at energy efficiency issues on another technical facility is shown in publication [22].…”

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“…During study, the all stator dimensions and winding parameters represented constants. An optimal motor should be characterized by high values of three maintenance (functional) parameters: (a) efficiency [18], (b) power factor and (c) synchronization capability. The synchronization capability is determined by value of the electromagnetic torque for a speed equal 0,8 of the synchronous speed.…”

Análisis De Los Movimientos De Las Operaciones De Las Grúas RTG en Puertos De Panamá Usando Simulador E-Tech / Análise Das Operações De Gruas RTG Em Portos Do Panamá Utilizando Simulador E-Tech

“…Las nuevas corrientes de productividad en los terminales portuarios están cambiando este esquema de operación y apuntan a realizar maniobras en las que se puedan realizar ambos movimientos (trolley-hoist) de forma simultánea. Este cambio se efectúa para acortar la distancia e impactar el tiempo empleado en las maniobras, aumentando la cantidad de contenedores que se puedan mover en el tiempo determinado y por lo tanto mejora la productividad (KosucKi, MAlentA, & ZAcZyńsKi, 2020).…”