FEM 9.842-1 Schienengeführte Regalbediengeräte - Berücksichtigung außergewöhnlicher kinetischer Ener | DE-German

VDMA 2013 - translation of the 2012 version Seiten / pages: 30

FEM - Product Group Intralogistic Systems / Racking and Shelving
11.2014 Guideline german edition 3.2016
9.842 - 1
10.2.11 - 1
In recent years, the use of thin-walled, open profiles for uprights and longitudinal ledgers has become increasingly common in shelving design. The safety coefficients have been reduced in parallel due to the increased dimensional accuracy of the base material and in the production of the profiles.
In general, these types of racking systems offer fewer reserves against plastic deformation and damage to the racking system in the event of a collision with a dynamically operating storage and retrieval machine or a loading unit than in the past. Practical experience shows that a collision between massive parts of a storage and retrieval machine and the racking system leads to enormous damage. The focus of the FEM guideline is on the description of the approach of a push-through protection system in a pallet warehouse and the design of such a system, taking into account the kinetic energy introduced during the impact. FEM 9.842-1 is closely related to EN 528: 2009, which describes the "Limitation of forces" in chapter 5.6.3.

1 Introduction and objectives
2 Area of application
3 Reference documents
4 Abbreviations and definitions
5 Symbols
6 Possible hazardous situations with regard to a possible kinetic energy impact (incomplete and exemplary)
7 Safety philosophy for the design of racking components for abnormal loads design of racking components for abnormal impacts
8 Vertical position of the rear safety stop
9 Devices for minimizing abnormal forces
10 The collision impact or quasi-static collision force - general
11 Single-deep, double-deep and shuttle pallet racking - general
12 Double-deep pallet racking with top hats / crossbars
13 Double-deep pallet racking, "beam offset" principle
14 Load cases
15 Energy absorption
16 Determination of FInitial impact
17 Stiffness requirement for rear safety stop for single and double-deep pallet racking
Bibliography
Appendix A Simplified methods for calculating the quasi-static force at the rear stop, FBS, due to a collision

Together with this guideline goes a complimentary excel sheet. Download link below.