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http://www.hitechcae.com/case-studies/fea/structural-dynamics-of-storage-frames.php
Structural Dynamics of Storage Frames Case Study Highlights Client Profile: Leading Glass Manufacturer, Europe Objective: To study the effects of different loading conditions on racks, and also investigate the structure’s response in the event of earthquakes, in order to avoid the rack failure. Challenges: = Identify optimized box stacking on racks at different inclination angle with minimum deformation = Develop dynamic loading conditions through
finite element model to replicate real world earthquake scenario Solution: Two rack designs were successfully evaluated under different loading conditions and an optimized rack design was suggested, having minimum deformation. Also, a seismic analysis was performed to measure the deformation under the dynamic load application. Software Used : ANSYS Professional NLS 14.5
Racks are significant in industries for storing or stacking goods safely. Their design however, is of prime importance as they are subjected to different loading conditions. It is obvious to find the rack deformation under the effect of static loads. Also, during the event of dynamic loading conditions such as earthquakes, the rack installed on the ground surface should ensure maximum resistance to movement and followed deformation. One of the leading glass manufacturers in Europe came up with an identical problem related to their rack design. The customer’s concern was to develop an optimized rack design, which apart from resisting the loads arising due to the stacking of boxes, would also resist deformation and failure during the event of earthquakes.
The Solution In order to ensure the rack’s strength against deformation, different stacking arrangements were tested, while also modifying the angle of one of the rack’s leg. The loading conditions were accurately applied on the geometrical model and the subsequent deformation was calculated through finite element analysis. With different loading configurations and leg angle, an optimized design with a suitable stacking arrangement was proposed, which resulted in minimum deformation. To further test the rack design for dynamic loads, a seismic analysis was performed to record the structure’s response against a spectrum representing an earthquake having a Richter scale of 7.1. This solution can also be provided using Altair Hyperworks, Autodesk Simulation, NASTRAN, Abaqus, Pro-Mechanica, NX-CAE.
Benefits = Optimized rack design for specific loading application
with minimum deformation = Identified an optimized box stacking sequence to avoid
excessive rack deformation = Predicted rack strength in the event of dynamic loading
conditions
About Hi-Tech
Author: Bhaumik Dave FEA Consultant
Hi-Tech CAE is a division of Hi-Tech Outsourcing Services, a pioneer engineering outsourcing company since 1992 based in India & USA. It provides expert Computer Aided Engineering - CAE consulting services for engineering / product design analysis by modeling & simulation. The primary services extended include Computational Fluid Dynamics (CFD), Finite Element Analysis (FEA), product design optimization and value engineering services to Automotive, Building / Construction, Process industry, Power Generation, Manufacturing & Heavy Engineering industries.
Phone: +1-408-338-8047 Email: info@hitechcae.com
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