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Right-click on setup. This will run setup. Read and accept the clickwrap to continue. Click the right arrow button to accept the default values throughout the installation. The ANSYS portfolio provides the highest existing level of reliable product design and simulation technology, and it continues to steadily improve for existing and new applications.
ANSYS supports an extremely broad range of engineering applications at a fair price and provides excellent technical support to users. During the design process, engineers followed simulation best practices developed by Kratos.
The team created detailed 3-D model geometry to ensure high-fidelity mass and inertial properties and assigned correct materials and physical properties for each component during the virtual prototype design process. They optimized the design by fully constraining the 3-D CAD geometry assembly and component models with the mating contact surfaces to ensure that they remain in full contact. Engineers cleaned up the large 3-D CAD geometry assembly model that con- tained more than 15, components to eliminate gaps and protruding sur- faces between components.
Kratos engineers optimized the 3-D models by eliminating small holes and threaded surfaces with little effect on the overall structure design; this decreased the number of nodes, subsequently reducing meshing and solution times. They also eliminated small fillet radii in the 3-D CAD models to avoid the stress riser effect when the model is solved. Each 3-D CAD model was grounded to adjacent components to avoid the potential for movement of floating components, which could create connection and meshing errors.
An FEA mesh was successfully generated using shell and beam modeling for the tracked combat vehicle trainer structure with more than 1. For structural analysis settings, the load of 3, pounds was applied in the form of 18 separate forces. These included 17 students at pounds each and an instructor operator station at pounds.
Five supports were set with four jackscrew pads and the rear stairs. A static structural analysis was then run on the model. The initial analysis results showed that a minimum safety factor was below the required 2. The minimum safety factor was also below 2.
Kratos engineers made a number of structural reinforcement design changes to address these concerns in the virtual prototype 3-D model geometry. They inserted two horizontal steel structural tubes on the bottom frame front corners.
They added eight upper-lateral steel cross beams and eight lower-lateral steel cross beams on each vertical post corner. Engineers changed the material from aluminum to steel on the turret base-forward support posts. They added a tactical-base basket-steel material component to the turret basket support assembly.
These changes added Kratos engineers then reran the static structural analysis for the 2 Kratos added horizontal steel structural tubes on the bottom-frame front corners 1 as well as upper- and lower-lateral steel cross beams on each vertical post corner 2.
Static structural analysis results of new reinforced design showed a substantial reduction in deformation. Minimum safety factor for noncritical components in the reinforced design was 2. They applied the same loads to the structure and concluded that all critical-area safety factors were above 5. The final results showed a minimum safety factor of 2.
Without engineering simulation, the system as initially designed and developed would have failed testing; it would have required revisions at considerable expense and additional development time. Topology optimization of a windturbine hub The TOSCA optimization suite provides solutions for high-quality designs of components and systems.
TOSCA Structure is an optimization tool suitable for easy and reliable design of lightweight, stiff and durable parts and assemblies.
TOSCA Fluid provides unique and fast methods for design optimization of flow through channels, ducts and pipes. It leads to a faster time-tomarket for innovative product designs. Engineers optimized and validated the product design based on the 3-D virtual prototype without having to build a physical prototype. The combat vehicle maintenance training systems were developed on time and on budget, ready to be shipped to the customer by the end of the year.
Partially due to the success of this program, Kratos was awarded a contract extension to upgrade tracked combat vehicle maintenance simulators for an army training center. The company has also received industry recognition for its efforts, most recently by being named top simulator and training company for by Military Training Technology magazine. By ANSYS Advantage Staff Exventys is a small consulting company with a mission to bring simulation technology to small and medium-sized companies that are not familiar with simulation or do not have the capabilities to use it on their own.
The consultancy applies unique thought processes to the insight gained from simulation to come up with innovative product solutions. The typical Exventys customer has 10 to employees; though they have extensive expertise in designing their own products, they do not have internal capabilities to perform simulation.
These companies are often short on funding, or, if they are well funded, they are unwilling to make the investment required for an internal simulation program. As a result, we have pioneered an unusual risk-sharing method of compensation. Instead of charging for the time we spend on the project, we charge the customer for the benefits they receive. For example, if the project goal is to develop a new product, Exventys is paid a percentage of the sales of the final product for one to three years.
Our customers have often been working for decades in one specific product niche. These companies typically build a prototype and then come up with some ideas to tweak its performance. In most cases, customers do not develop completely new approaches to the problem.
When working with physical prototypes, it is far too expensive to try off-the-wall approaches or to truly optimize the design. Exventys has an approach that enables customers to evaluate a much broader range of design alternatives than would be possible without simulation. We usually start by modeling the existing design. Then we perform a simulation and compare the results to physical testing of the product to be sure we have not overlooked something basic.
Then we begin to examine different approaches. We ask our customers for ideas they could never afford to prototype, whether because of time or money. I provide ideas based on my 20 years of engineering experience, primarily working with rubber and plastics. Using simulation, we evaluate these ideas quickly and inexpensively. We show our customers the value of using simulation systematically, especially early in the design stage.
We worked with a customer who builds machines that use an Archimedes screw to move grapes during processing. This device consists of a screw inside a hollow pipe; when the screw is turned, it transfers materials up the screw and out the top end of the pipe. The Archimedes screw is used in a wide range of processes to move liquids and solids. The customer was happy with the performance of the existing screw but wanted to reduce costs related to its steel construction.
The complex geometry made it very expensive to machine. It was obvious that the screw could be made for a considerably lower cost if molded from an elastomeric polymer, but this would require ensuring that the polymer screw held up just as well as the steel screw.
This would make it possible to mold the flights in volume to reduce cost. The flights could be combined to make Archimedes screws in any length needed by a user. A key advantage is that if the product becomes worn or damaged, the user can repair it simply by changing a flight. The challenge was to make a plastic screw with the same efficiency as the steel screw while ensuring that the plastic screw was within acceptable stress and deformation limits.
This is where simulation came in. I have tried many finite element software programs over the course of my career. I performed static analysis on many different geometric iterations. I tried several plastic materials using the design exploration capabilities of Workbench until I found a combination that delivered the right performance while providing the physical properties needed to survive this application.
During the analysis process, I looked closely at stresses in the plastic screw to make sure there was no local dam- age to the material. I also examined the connection between the shaft and each flight.
Solving a Problem with a Rubber Extrusion Die Utilizing simulation to solve customer problems, Exventys worked with a manufacturer that had been trying for a year, without success, to extrude a rubber part at the appropriate extrusion speed.
The simulation showed that the pressure drop in the die was too high; it indicated that the mm length of the die was the root cause. After numerically evaluating a number of different designs, the engineering team concluded that a new mm-long die design would solve the problem.
The use of ANSYS Polyflow allowed what-if scenarios to be studied using simulation, so cutting physical dies for each design was not required. Simulation results show stresses on a polymer flight. Modal analysis results for polymer flight Exventys received a rubber industry innovation award for its Archimedes screw design.
The cost of the device is lower because the screws are less expensive to build. The flights can be produced in volume and assembled by the end user to make the finished screw quickly and easily. Delivery time is much faster: Currently, customers who order Archimedes screws have to wait a month for a custom screw to be produced to their specifications. But now we can send them standard off-the-shelf flights that they assemble in 30 minutes. The plastic flights provide superior resistance to corrosion, abrasion, acids and bases.
The flights have less friction, which reduces the amount of energy needed to drive the screw and eliminates the need for intermediate bearings in many con- figurations.
The plastic flights generate much less noise than steel screws, which helps to improve working conditions. We obtained full rights to market the Archimedes screw from our customer. We are currently working with CDMO tooling and EMT Rubber, companies that provide invaluable support to Exventys, to create tooling needed to build their standard modules.
We have patents pending in the United States and Europe. We are looking for partnerships to produce and market the product globally. We already have several customers up and running with the product. Our goal is to become the world leader in the business of moving bulk materials via polymers — in an area that was once reserved for steel.
This is what engineering simulation is helping us to achieve. Compared to pharmaceutical tablets — whose volume often contains only a tiny fraction of active ingredients, so they can be smaller in size — food dietary supplements are made of edible constituents and tend to be bigger, which can make them more difficult to swallow. May 14, at pm. May 9, at pm. May 11, at pm. May 13, at am. May 16, at pm. May 19, at pm. Next-generation automotive, mobile and high-performance computing applications demand the use of advanced systems on chip that are bigger, faster and more complex.
ANSYS 19 delivers a comprehensive, big data-enabled simulation platform that simultaneously solves for various design attributes such as power noise, thermal properties, reliability and performance across the spectrum of chip, package and system to accelerate your product success.