Why Ceetak makes use of Finite Element Analysis

Finite Element Analysis offers knowledge to foretell how a seal product will operate beneath sure circumstances and may help establish areas where the design may be improved with out having to check multiple prototypes.
Here we explain how our engineers use FEA to design optimum sealing solutions for our buyer purposes.
Why will we use Finite Element Analysis (FEA)?

Our engineers encounter many critical sealing purposes with complicating influences. Envelope dimension, housing limitations, shaft speeds, pressure/temperature scores and chemical media are all utility parameters that we must think about when designing a seal.
In isolation, the impression of those application parameters is fairly easy to foretell when designing a sealing resolution. However, whenever pressure gauge น้ำ compound numerous these factors (whilst often pushing a few of them to their upper limit when sealing) it is essential to foretell what goes to happen in actual application circumstances. Using FEA as a software, our engineers can confidently design after which manufacture robust, reliable, and cost-effective engineered sealing solutions for our clients.
Finite Element Analysis (FEA) permits us to grasp and quantify the effects of real-world conditions on a seal part or meeting. It can be used to identify potential causes where sub-optimal sealing efficiency has been noticed and can additionally be used to guide the design of surrounding components; particularly for merchandise such as diaphragms and boots where contact with adjoining parts could need to be prevented.
The software program also permits pressure data to be extracted so that compressive forces for static seals, and friction forces for dynamic seals could be precisely predicted to help clients in the last design of their merchandise.
How can we use FEA?

Starting with a 2D or 3D model of the initial design concept, we apply the boundary conditions and constraints equipped by a customer; these can embrace stress, pressure, temperatures, and any utilized displacements. A appropriate finite component mesh is overlaid onto the seal design. This ensures that the areas of most curiosity return correct outcomes. We can use larger mesh sizes in areas with less relevance (or lower levels of displacement) to minimise the computing time required to solve the model.
Material properties are then assigned to the seal and hardware components. Most sealing materials are non-linear; the amount they deflect beneath an increase in drive varies relying on how large that pressure is. This is not like the straight-line relationship for most metals and rigid plastics. This complicates the fabric model and extends the processing time, but we use in-house tensile take a look at amenities to precisely produce the stress-strain material models for our compounds to ensure the evaluation is as representative of real-world performance as potential.
What happens with the FEA data?

The evaluation itself can take minutes or hours, depending on the complexity of the half and the range of operating situations being modelled. Behind the scenes in the software, many lots of of hundreds of differential equations are being solved.
The results are analysed by our experienced seal designers to establish areas where the design can be optimised to match the precise requirements of the appliance. Examples of those requirements could embrace sealing at very low temperatures, a need to minimise friction levels with a dynamic seal or the seal may have to withstand excessive pressures without extruding; whatever sealing system properties are most essential to the client and the application.
Results for the finalised proposal may be presented to the client as force/temperature/stress/time dashboards, numerical information and animations exhibiting how a seal performs all through the evaluation. This data can be used as validation data within 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 application. By utilizing FEA, we have been able to optimise the design; not solely of the elastomer diaphragm itself, but in addition to propose modifications to the hardware parts that interfaced with it to extend the out there house for the diaphragm. This saved material stress ranges low to take away any chance of fatigue failure of the diaphragm over the lifetime of the valve.

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