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Static Analysis of Selected Design Solutions for Weight-Reduced Gears

Dziubek Tomasz, Sobolewski Bartłomiej, Budzik Grzegorz, Gontarz Małgorzata

Advances in Science and Technology. Research Journal

2022

Vol. 16, no 3

258--268

The paper presents an analysis of selected design solutions for spur gears with reduced weight, in which the results obtained are compared to a solid gear without modifications. The reduction of the weight of the gears is of particular importance, among others in the automotive and aviation industries, where it reduces energy consumption, and thus CO2 emissions. It is also important to remember to maintain the required strength parameters when reducing the mass of the gear. This article focuses on the analysis of deformation and stress due to a given load on the considered weight-reduced gears. The values of the obtained static analysis results of the reduced-weight gears were also compared to the base gear.

Optimizing the weight of the two-level gear train in the personal rescue winch

Duong Truong, Nguyen Van Tinh, Nguyen Tien Dung

Archive of Mechanical Engineering

2021

LXVIII, nr 3

271--286

In the previous study, we designed one personal rescue winch for high-rise building rescue. Its key requirement is to be small and light enough to suit users. In addition to using lightweight and reasonable materials as in the proposed winch design, in this study, we proceed to optimize the weight of one two-level gear train, which accounts for a large proportion of weight. The first stage is building a weight optimization problem model with seven independent variables, establishing one optimal algorithm, and investigating the variables by Matlab software. The other is replacing the web material of the gears and pinions with Aluminum 6061-T6 and optimizing their hole diameters and hole numbers through using Ansys software. The obtained result shows a significant weight reduction. Compared to the original design, the weight reduces by 10.21% and 52.40% after the first optimal and last stages, respectively.