Why Ceetak uses Finite Element Analysis

Finite Element Analysis supplies information to predict how a seal product will operate under certain circumstances and might help determine areas where the design could be improved without having to check multiple prototypes.
Here we explain how our engineers use FEA to design optimum sealing options for our buyer purposes.
Why can we use Finite Element Analysis (FEA)?
Our engineers encounter many critical sealing applications with complicating influences. Envelope dimension, housing limitations, shaft speeds, pressure/temperature scores and chemical media are all utility parameters that we should consider when designing a seal.
In เกจวัดแรงดันน้ำ4หุน , the impact of those software parameters is fairly straightforward to predict when designing a sealing resolution. However, when you compound numerous these factors (whilst usually pushing some of them to their upper limit when sealing) it is essential to foretell what goes to happen in actual utility circumstances. Using FEA as a tool, our engineers can confidently design after which manufacture sturdy, dependable, and cost-effective engineered sealing solutions for our customers.
Finite Element Analysis (FEA) permits us to know and quantify the consequences of real-world conditions on a seal half or assembly. It can be utilized to determine potential causes where sub-optimal sealing performance has been noticed and may additionally be used to information the design of surrounding elements; especially for products such as diaphragms and boots the place contact with adjacent components may must be averted.
The software program also allows force knowledge to be extracted so that compressive forces for static seals, and friction forces for dynamic seals could be precisely predicted to assist clients within the ultimate design of their products.
How can we use FEA?
Starting with a 2D or 3D mannequin of the initial design idea, we apply the boundary situations and constraints supplied by a customer; these can embody strain, pressure, temperatures, and any utilized displacements. A appropriate finite element mesh is overlaid onto the seal design. This ensures that the areas of most interest return accurate outcomes. We can use larger mesh sizes in areas with less relevance (or decrease ranges of displacement) to minimise the computing time required to resolve the mannequin.
Material properties are then assigned to the seal and hardware elements. Most sealing supplies are non-linear; the quantity they deflect underneath a rise in force varies relying on how giant that pressure 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, however we use in-house tensile take a look at amenities to accurately produce the stress-strain materials models for our compounds to make sure the analysis is as consultant of real-world efficiency as attainable.
What occurs with the FEA data?
The analysis itself can take minutes or hours, depending on the complexity of the half and the vary of working conditions being modelled. Behind the scenes in the software, many hundreds of thousands of differential equations are being solved.
The outcomes are analysed by our experienced seal designers to identify areas where the design could be optimised to match the specific necessities of the applying. Examples of those requirements could embrace sealing at very low temperatures, a must minimise friction levels with a dynamic seal or the seal may need to face up to excessive pressures with out extruding; whatever sealing system properties are most necessary to the client and the applying.
Results for the finalised proposal may be introduced to the shopper as force/temperature/stress/time dashboards, numerical data and animations exhibiting how a seal performs throughout the analysis. This info can be used as validation knowledge in the customer’s system design process.
An instance of FEA
Faced with very tight packaging constraints, this customer requested a diaphragm part for a valve utility. By using FEA, we had been in a position to optimise the design; not solely of the elastomer diaphragm itself, but in addition to suggest modifications to the hardware elements that interfaced with it to increase the out there area for the diaphragm. This saved material stress ranges low to remove any risk of fatigue failure of the diaphragm over the life of the valve.
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