Design and strength analysis of mechanical rack system

Abstract

The paper deals with a construction design of the rack system which will be used for storage of metallurgical rod material in a manufacturing engineering company. To meet requirements for manual control of the pull-out mechanism it will be determined the force exerted by the worker on the hand crank required to pull in and pull out the racking system at the full load. In addition, stress analysis was conducted by means of finite element method.

Strength reanalysis and influence line equation of rack system drive force

“…The strength analysis of the construction showed deficiencies of the design in the pulled-out position [13]. Analyses were carried out using FEM by means of Adina software [14][15][16].…”

“…The static calculation [13] has a deficiency in the form of a large computational space if we want to determine the actual reaction forces values depending on the size of the rack extension. This is because of the burden loading the construction, and therefore the hand crank, is not static but movable [20].…”

“…MATEC Web of Conferences 254, 02005 (2019) https://doi.org/10.1051/matecconf/201925402005 MMS 2018 In order to check the correctness of the solution, it is sufficient to make the calculation of equations [13], but using the total value Fg and its position, but at the same time it was necessary to create the equation 2in such a way as to explain the variable x1, i.e. ejecting the rack in the first boundary.…”

“…By applying the equation (11) into equation (13) and its adjusting we get: 12into equation (14) and its adjusting we get: A similar equation applies to the second boundary (16):…”

“…By putting the relation (13) into (15) [24], depending on the position of the rack, i.e., position in the first or second field (Fig. 8).…”