A Study of Dynamic Loads of a Flexible Sectional Screw Conveyor-Reference-Cited by-同舟云学术

A Study of Dynamic Loads of a Flexible Sectional Screw Conveyor

Published:2022-08-12 Issue:3 Volume:25 Page:131-136
ISSN:1338-5267
Container-title:Acta Technologica Agriculturae
language:en
Short-container-title:

Author:

Bulgakov Volodymyr¹,Trokhaniak Oleksandra¹,Adamchuk Valerii²,Chernovol Mykhailo³,Korenko Maroš⁴,Dukulis Ilmars⁵,Ivanovs Semjons⁵

Affiliation:

1. National University of Life and Environmental Sciences of Ukraine , Ukraine

2. Institute of Mechanics and Automation of Agricultural Production of the National Academy of Agrarian Sciences of Ukraine , Ukraine

3. Central Ukrainian National Technical University , Ukraine

4. Slovak University of Agriculture in Nitra , Slovakia

5. Latvia University of Life Sciences and Technologies , Latvia

Abstract

Abstract When using complex spatial patterns for transportation, the straight screw conveyors have a series of obvious disadvantages. This paper presents a design of a flexible screw sectional working body that allows increasing the functional and operational characteristics of screw conveyors used in the transportation of bulk agricultural materials. A mathematical model of the dynamic system of a flexible screw conveyor has been established, and dynamic starting torques have been calculated at the rated load of loaded screw, and when the system is braking. Analysis of the results obtained shows that, with significant damping coefficients, the start-up transition process occurs smoothly, and the load reaches its rated value without torque and speed fluctuations. It has been established that fast braking significantly increases the dynamic loads that may exceed the maximum critical torque of the electric motor (by 50–70% on average) and the rated load torque (by 2.5–3 times).

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Waste Management and Disposal,Agronomy and Crop Science

Link

https://www.sciendo.com/pdf/10.2478/ata-2022-0020

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