Why Ceetak makes use of Finite Element Analysis

Finite Element Analysis provides knowledge to foretell how a seal product will function underneath sure conditions and can help determine areas where the design may be improved without having to check a quantity of prototypes.
Here we explain how our engineers use FEA to design optimal sealing solutions for our customer functions.
Why can we use Finite Element Analysis (FEA)?

Our engineers encounter many crucial sealing purposes with complicating influences. Envelope dimension, housing limitations, shaft speeds, pressure/temperature ratings and chemical media are all software parameters that we should think about when designing a seal.
In isolation, the influence of those utility parameters is fairly straightforward to predict when designing a sealing resolution. However, if you compound a quantity of these elements (whilst usually pushing a few of them to their higher limit when sealing) it is essential to predict what goes to occur in real utility situations. Using FEA as a device, our engineers can confidently design after which manufacture robust, dependable, and cost-effective engineered sealing solutions for our clients.
Finite Element Analysis (FEA) allows us to grasp and quantify the effects of real-world conditions on a seal half or assembly. It can be utilized to determine potential causes the place sub-optimal sealing performance has been observed and can also be used to guide the design of surrounding components; particularly for products corresponding to diaphragms and boots where contact with adjacent elements may have to be avoided.
The software program additionally permits pressure information to be extracted so that compressive forces for static seals, and friction forces for dynamic seals can be precisely predicted to help clients in the ultimate design of their products.
How do we use FEA?

Starting with a 2D or 3D model of the preliminary design idea, we apply the boundary situations and constraints provided by a buyer; these can embrace strain, force, temperatures, and any utilized displacements. A suitable 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 much less relevance (or decrease levels 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 materials are non-linear; the quantity they deflect beneath an increase in drive varies relying on how massive that drive is. This is in contrast to the straight-line relationship for many metals and rigid plastics. This complicates the fabric model and extends the processing time, but we use in-house tensile test facilities to accurately produce the stress-strain material fashions for our compounds to ensure the evaluation is as representative of real-world performance as attainable.
What happens with เกจวัดแรงดันน้ำไทวัสดุ ?

The analysis itself can take minutes or hours, depending on the complexity of the part and the vary of operating circumstances being modelled. Behind the scenes in the software program, many tons of of thousands of differential equations are being solved.
The results are analysed by our experienced seal designers to establish areas the place the design can be optimised to match the particular requirements of the appliance. Examples of those necessities could embody sealing at very low temperatures, a have to minimise friction ranges with a dynamic seal or the seal may need to resist excessive pressures without extruding; whatever sealing system properties are most necessary to the client and the application.
Results for the finalised proposal can be introduced to the client as force/temperature/stress/time dashboards, numerical data and animations exhibiting how a seal performs all through the analysis. This information can be used as validation knowledge within the customer’s system design course of.
An example of FEA

Faced with very tight packaging constraints, this customer requested a diaphragm element for a valve application. By using FEA, we were in a position to optimise the design; not solely of the elastomer diaphragm itself, but in addition to suggest modifications to the hardware components that interfaced with it to increase the obtainable area for the diaphragm. This kept materials stress ranges low to remove any risk of fatigue failure of the diaphragm over the lifetime of the valve.

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