June 04, 2013 Volume 09 Issue 21

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Easy programming for hydraulic proportional controls

HAWE Hydraulik's eDesign, a new cloud-based, graphical programming interface for electronic control systems, enables users to design programs and to install them directly on the electronic control without knowing a programming language. HAWE eDesign already includes a large number of functions to program either the CAN-knot type CAN-IO or the company's electronic amplifier plug type EV2S. The programming interface is ideally suited to facilitate the transition from on/off valve technology to proportional control, and is primarily intended for low to medium complex programming. Built-in tutorials and hints simplify use.
Click here to learn more.

Control 3D printing at the voxel level

Stratasys has introduced GrabCAD Voxel Print, a new software solution for its J750 3D-printing solution that provides true voxel-level control during the design and 3D-printing process. Manipulating microscopic voxels, which represent volumetric pixels and are the building blocks of 3D printing, enables users to achieve 3D-printed effects and properties not possible before. Combine this with the full-color, multi-material 3D-printing capability of the Stratasys J750 3D Printing Solution, and you open up a whole new world of digital materials and advanced structures.
Click here to learn more.

Biggest reasons engineers hate their CAD system

Darren Garnick of Onshape says that, in a recent CAD satisfaction survey of 230 design professionals, Engineering.com asked a very provocative question: What do you hate most about your CAD software? The research, sponsored by SOLIDWORKS®, revealed these four things that engineers and designers despise the most (in order of importance).
Read this informative Onshape blog.

SOLIDWORKS 2018 is here!

With SOLIDWORKS 2018, teams can collaborate concurrently to design a product or part more rapidly and cost efficiently, validate its function and manufacturability, manage its data and related processes, streamline and automate its manufacturing, and inspect it. Any changes in design or manufacturing are fast and easy to manage and automatically flow to all related models, programs, drawings, and documentation. A standout new feature is SOLIDWORKS CAM, which provides rules-based machining with knowledge capture for the automation of manufacturing programming. Plus, there are improvements to many of the SOLIDWORKS features you already use.
Learn all about the SOLIDWORKS 2018 launch.

Optimize your product manufacturing cost analysis

Boothroyd Dewhurst, developer of internationally recognized Design for Manufacture and Assembly (DFMA) software, has released DFM Concurrent Costing, Version 3.0. Deployed as a cost-analysis tool for engineering and procurement teams, the latest software allows manufacturers to move beyond "price" models, based largely on past bids, to industrial cost models grounded in scientific test data and studies. The result is a highly reliable "should cost" view of the product that offers insight into hidden cost drivers and ways to optimize both design and production.
Click here to learn more.

Fastest way to dry your hands? FloEFD investigates

Have you ever wondered what’s the fastest way to dry your hands when using one of those air-shooting hand dryers in a public restroom? Should you rotate your hands or leave them in one place? What position is most efficient? Proving that modeling everyday challenges is fun and insightful, Robin Bornoff from Mentor Graphics tackles these questions using the full-featured 3D fluid flow and heat transfer analysis simulation tool called FloEFD.
Read the full article.

Everything you wanted to know about heatsinks

How well a heatsink performs depends on particular aspects of its design, such as the thermal conductivity of the material it's made of, its overall dimensions, fin type used, airflow rate, and system. A theoretical model can be used to predict performance, or it can be measured experimentally. But because of the complex 3D nature of today’s electronic systems, engineers often use the numerical method via computational fluid dynamics (CFD) to determine the thermal performance of a heatsink before prototyping. This informative blog post from Mentor features two on-demand webinars to run through the basics of heatsink design and considerations.
Read the Mentor blog on heatsink design.

MapleSim provides new approach to tire modeling

To save time and money in the design and development of new vehicles, automotive manufacturers typically use models to simulate the dynamic relationship between tires and road surfaces. Ideally, a tire model must accurately simulate the dynamics of the system and allow designers to vary its parameters, and simulations must also execute quickly. But existing tire models have inherent drawbacks.
Read the full article.

Vital welding and joining data for design and simulation

Granta Design has announced its new GRANTA MI tools for the management of vital material property data relating to welds and other joining techniques. This data is very valuable for automotive organizations seeking to ensure accurate design or simulation, but it is rarely systematically managed -- leading to inefficiencies, inconsistencies, and risk. Granta is working closely with leading OEMs and suppliers through the Automotive Material Intelligence (AutoMatIC) Consortium to create a new, ready-to-go, extensible information system that can ensure proprietary data related to welds or other joints is captured, traceable, searchable, and accessible. User organizations will save time and maximize returns from important intellectual property (IP).
Click here to learn more.

Complete jobs quickly and minimize downtime on the shop floor

ANSYS SpaceClaim provides machinists with a better solution to edit and repair 3D models created in any CAD format or as a 2D drawing. Intuitive tools help you accelerate fixture and tooling design and reduce time to finished parts. Use SpaceClaim to:

  • Create jigs, fixtures, soft jaws, and tooling
  • Quickly repair and edit CAD models
  • Create manufacturing process plans
  • Remove or adjust all aspects of geometry
  • Grab parts from libraries
SpaceClaim pays for itself in a job or two and eliminates expensive proprietary CAD software. Since it’s easy to learn, you don’t have to pay for employee training, either.
Click here to learn more.

Latest VISI release addresses sheet-metal springback

The latest release of VISI, Vero Software’s specialist mold and die solution, delivers a number of user experience enhancements and addresses an issue that is often neglected, but that can have an important effect on the final shape of a formed sheet-metal component. When the sheet metal part is removed from the die and the forming forces released, material elasticity will cause the part geometry to experience springback. The new Springback prediction functionality in VISI 2017 R2 is designed to reduce the time and cost of a typical trial-and-error approach to solving this long-standing industry issue.
Click here to learn more.

PTC expands industrial IoT tech offering with launch of ThingWorx 8

ThingWorx 8 features enhanced platform capabilities, role-specific applications for engineering and manufacturing, a substantial ecosystem of partners and customers, more expansive educational programs, and a new collection of service offerings designed for Industrial IoT customers and partners.
Click here to learn more.

Maple 2017 is here!

Maplesoft has announced the release of a new version of its flagship product, Maple -- the mathematical software that makes it extremely easy to analyze, explore, visualize, and solve math problems. It offers increased mathematical power, stronger visualizations, and flexible deployment options. The latest release includes new features that enable users to extend Maple’s power through user-created packages, construct even complicated plots easily, and password-protect Maple documents. The result of over 30 years of development, this release includes a large number of useful improvements that existing customers will welcome.
Click here to learn more.

Latest MapleSim release improves engineering design productivity

Maplesoft has announced a major new release of MapleSim, an advanced system-level modeling and simulation platform. MapleSim 2016.2 contains a variety of new features, including new live simulations for increased design productivity, 3D overlay for comparing simulation visualizations, and improved revision control tools that facilitate large projects involving multiple engineers working on the same model. The new release also includes significant enhancements to toolchain connectivity, expanded analysis tools for the MapleSim Battery Library, and improved import facilities for the MapleSim CAD Toolbox.
Click here to learn more.

Cool Tools: Onshape launches sheet metal design tools

Onshape is the only professional 3D CAD system to offer sheet metal designers and manufacturers simultaneous and synchronized flat, folded, and tabular views. The software is just about to release a new set of powerful cloud-based design tools that will enable CAD users to visualize errors and interferences immediately, consider alternatives, and reduce scrap and wasted time. For example, if you pick bends in the wrong place, it will show you why the flat pattern won't work or why it is not optimal. Fabricators can also adjust the model based on specific tooling, without violating the design intent. Now that is how you do it.
Click here to learn more.

3D inverse design helps military OEM develop unique cooling fans

A U.S.-based defense contractor, an original equipment manufacturer (OEM) of life support systems (LSS) for military applications, had a need for a custom fan to be integrated in its product line. With TURBOdesign1 from Advanced Design Technology (ADT), the company was able to bring the fan design process in-house and cut design time as well as production cost.

In developing the fan, engineers were challenged to develop a large air-flow-volume, low-pressure fan characteristic with high air velocities over the stator blades. In order to achieve the best aerodynamic efficiency, it was required to avoid separation at the stator while recovering the static pressure. No existing standard design was known that could satisfy the requirements to efficiency, size, and operating speed.

Reducing the fan noise was an additional design objective. Certain rotor design features were desirable to minimize fan noise: forward sweep of the rotor blades, plus reduced chord length at the shroud were to eliminate the possibility of vortices shedding off from the suction side of the rotor blades and hitting the next blade pressure side close to the trailing edge. Another desirable feature was positive blade stacking at the rotor blade tip to minimize losses and noise associated with the tip clearance.

Originally, the company evaluated several conventional fan design approaches, including all the available commercial codes for design of turbomachinery based on a direct design approach. The evaluation criteria included computer system requirements and associated hardware costs, the number of engineers needed to be involved in the design process, and the learning curve to produce new designs with a high level of confidence. ADT's TURBOdesign1 software came out the winner, in part because it did not require special hardware and, after just three weeks of initial training, engineers were able to tackle their first fan design case.

The design team used ADT's TURBOdesign1 3D inverse design code to introduce these new features and achieve rotor blade loading that produces the required flow and pressure rise at the lowest shaft power with a sufficient stall margin.

After completing and testing two different axial fan designs, the company engineers became more confident that their next designs would be successful. Examples of the resulting geometries of the stage are shown in Figures 1 and 2.

Figure 1. The resulting geometry of one of the axial flow stages designed by TURBOdesign1.



Figure 2. The final hardware model.



ADT's TURBOdesign1 inverse design code, used together with CD Adapco Star CCM+ computational fluid dynamics (CFD) software, has proven to satisfy all of the new design objectives.

"We found ourselves using all the features implemented in the TURBOdesign1 code," said the company's aerodynamics engineer. "In addition to specifying meridional geometry and blade loading, having the ability to specify custom blade thickness, stacking location, and stacking profiles was very useful in achieving good aerodynamic designs."

TURBOdesign1 output data was exported to a spreadsheet, and additional design parameters, like diffusion factor for axial fans, were evaluated during the design procedure. This gave the designers an even higher level of confidence early in the design process, before taking it to CFD for evaluation and prototype construction and testing.

The use of ADT's TURBOdesign1 software made it possible to design an entirely new cooling fan from scratch, starting only from design requirements. In the process, the company was able to eliminate the costs of using outside consultants, reduce the lead time for new turbo-machinery designs of this type, and produce its own designs in-house that are best suited to its application needs.

"We cannot put a dollar figure on our new ability to design our own fans," said one design engineer. "But, in our opinion, it's invaluable."

Want more information? Click below.

ADT's TURBOdesign1

Source: Advanced Design Technology (ADT)

Published June 2013

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