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Performance of power-assist transport cart drive

Pelic Marcin, Myszkowski Adam, Pabiszczak Stanisław, Bartkowiak Tomasz, Bereszyński Kacper, Pawlewski Paweł, Czynszak Paweł

Advances in Science and Technology. Research Journal

2025

Vol. 19, no 2

383--392

The aim of this paper is to evaluate the performance parameters of a novel power-assist drive unit dedicated to intralogistics equipment. The drive unit under investigation comprises an industrial wheel driven by a BLDC motor, mounted on a fork with a plate, enabling connection to devices such as a pallet cart. The unit is equipped with an additional drive responsible for lifting the wheel when the cart is moved manually. During preliminary tests, the forces required to move the pallet trolley were determined based on the type of floor, the type and orientation of the caster wheels, and the load. For each of the tested loads, the smallest forces were recorded for a trolley with wheels aligned with the direction of travel on a smooth floor, while the largest were observed for wheels positioned perpendicular to the intended direction of travel on a coarse-aggregate floor. To evaluate the performance of the power-assist drive unit, a test stand was built, and a detailed testing program was developed, taking into consideration the pulling (pushing) force and power consumption of one unit and a set of two electric drive units mounted on a pallet trolley. Analysis of the obtained results leads to the conclusion that the proposed drive can significantly reduce physical effort in manual transport, especially in intralogistics operations. The presented device allows for moving a trolley weighing more than 600 kg, regardless of the type and initial setting of the wheels or the smoothness of the floor.

Drive unit characteristics of a completely electrical passenger aircraft

Fąfara Jean-Marc

Power Electronics and Drives

2020

Vol. 5 (40)

59--71

Aviation has, over the years, become an inseparable element of human life. Airplanes are very commonly used for various tasks, such as transport of passengers and goods, military attack and defence, rescue, recreation and so on. In spite of the many advantages of aviation, one cannot ignore its disadvantages. The most important disadvantages of aviation are the emissions that cause atmospheric pollution and noise. Additionally, one should remember about the decreasing stocks of non-renewable fuels. These drawbacks affect human health and the natural environment. Therefore, a good alternative to conventional drive units in aircraft may turn out to be electric drive units in the near future. The aim of this article is to check the extent to which today’s knowledge and technology allow the use of electric drive units instead of conventional aircraft drive units. This article presents the concept of electric aircraft, from the electric drive unit to its power supply system. The feasibility of designing an electric jet drive unit for a passenger aircraft was analysed based on the performances of PZL 104 Wilga 35 and Boeing B787 Dreamliner.