Why Ceetak uses Finite Element Analysis

Finite Element Analysis supplies information to predict how a seal product will operate under sure conditions and may help identify areas the place the design could be improved with out having to test multiple prototypes.
Here we explain how our engineers use FEA to design optimal sealing options for our buyer functions.
Why will we use Finite Element Analysis (FEA)?
Our engineers encounter many crucial sealing purposes with complicating influences. Envelope measurement, housing limitations, shaft speeds, pressure/temperature ratings and chemical media are all software parameters that we must consider when designing a seal.
In เกจวัดแรงดันน้ำประปา , the impression of these application parameters is fairly straightforward to predict when designing a sealing resolution. However, if you compound numerous these components (whilst often pushing some of them to their higher restrict when sealing) it is crucial to predict what goes to happen in real utility circumstances. Using FEA as a software, our engineers can confidently design after which manufacture strong, reliable, and cost-effective engineered sealing solutions for our prospects.
Finite Element Analysis (FEA) allows us to know and quantify the results of real-world circumstances on a seal part or assembly. It can be used to determine potential causes the place sub-optimal sealing performance has been noticed and can be used to guide the design of surrounding parts; particularly for merchandise such as diaphragms and boots the place contact with adjoining components may need to be prevented.
The software program also permits force data to be extracted in order that compressive forces for static seals, and friction forces for dynamic seals may be accurately predicted to assist prospects in the final design of their merchandise.
How can we use FEA?
Starting with a 2D or 3D mannequin of the preliminary design idea, we apply the boundary conditions and constraints equipped by a customer; these can embrace stress, pressure, temperatures, and any utilized displacements. A suitable finite component mesh is overlaid onto the seal design. This ensures that the areas of most interest return correct outcomes. We can use larger mesh sizes in areas with much less relevance (or decrease ranges of displacement) to minimise the computing time required to solve the model.
Material properties are then assigned to the seal and hardware parts. Most sealing supplies are non-linear; the quantity they deflect under a rise in pressure varies depending on how large that drive is. This is in distinction to the straight-line relationship for most metals and rigid plastics. This complicates the material mannequin and extends the processing time, however we use in-house tensile check amenities to precisely produce the stress-strain materials fashions for our compounds to make sure the analysis is as consultant of real-world efficiency as attainable.
What happens with the FEA data?
The evaluation itself can take minutes or hours, relying on the complexity of the part and the range of operating conditions being modelled. Behind the scenes within the software program, many hundreds of thousands of differential equations are being solved.
The outcomes are analysed by our experienced seal designers to identify areas the place the design could be optimised to match the precise necessities of the appliance. Examples of those requirements could include sealing at very low temperatures, a have to minimise friction levels with a dynamic seal or the seal may need to resist excessive pressures with out extruding; whatever sealing system properties are most essential to the client and the appliance.
Results for the finalised proposal may be presented to the client as force/temperature/stress/time dashboards, numerical information and animations showing how a seal performs throughout the analysis. This info can be utilized as validation information in the customer’s system design process.
An example of FEA
Faced with very tight packaging constraints, this buyer requested a diaphragm component for a valve software. By using FEA, we have been capable of optimise the design; not solely of the elastomer diaphragm itself, but in addition to propose modifications to the hardware elements that interfaced with it to extend the available area for the diaphragm. This saved material stress levels low to remove any chance of fatigue failure of the diaphragm over the life of the valve.
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