Upon receiving an enquiry that has specialist lifting or loading requirements, the design team is able to build a 3D computer model of the stillage and when required, apply virtual loading conditions to analyse and optimise the result using a technique called FEA.
What is FEA?
Finite Element Analysis (FEA) is a technique which has existed in theory since the 1930’s. Work continued on the topic as an academic exercise until the 1970’s but designers lacked the necessary computing power to use it in a timely and effective manner with real world engineering problems.
Although modern application of FEA still requires highly trained engineers and powerful CAD workstation computers, JS Burgess are able to use these modern techniques to optimise stillage design for the benefit of customers.
The basic concept of FEA is to split down a complex loading analyis into a series of discrete elements for which calculations of stress and strain is a simpler propisition than to consider the loads and displacements for a large complex structure such as a stillage or glass handling A-Frame.
How FEA is used in stillage design
JS Burgess has the capability to use FEA to reduce the costs associated with prototyping and over-engineering.
The above exaggerated-scale animation shows a situation when a large stillage with lifting eyes is “virtually loaded” and the deflection is calculated. As a result, of these calculations, the stress and strains are analyised and additional braces were added to improve the design without adding unnecessary weight or cost to the design of the stillage.
By adding additional braces and retesting virtually, a design can reach the testing phase without needless prototypes and iterations, the result is customers receive a product that is right first time and at the right price.