• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

3D CAD World

Over 50,000 3D CAD Tips & Tutorials. 3D CAD News by applications and CAD industry news.

  • 3D CAD Package Tips
    • Alibre
    • Autodesk
    • Catia
    • Creo
    • Inventor
    • Onshape
    • Pro/Engineer
    • Siemens PLM
    • SolidWorks
    • SpaceClaim
  • CAD Hardware
  • CAD Industry News
    • Company News
      • Autodesk News
      • Catia News & Events
      • PTC News
      • Siemens PLM & Events
      • SolidWorks News & Events
      • SpaceClaim News
    • Rapid Prototyping
    • Simulation Software
  • Prototype Parts
  • User Forums
    • MCAD Central
    • 3D CAD Forums
    • Engineering Exchange
  • CAD Resources
    • 3D CAD Models
  • Videos

solidthinking

Iowa State University’s Formula SAE team uses solidThinking Inspire to slash weight of rear aerodynamic wing

January 29, 2018 By Leslie Langnau Leave a Comment

Bruce Jenkins | Ora Research

Cyclone Racing, Iowa State University’s Formula SAE team, consists of 40+ active members who design, build, test and race a formula-style race car each year to compete with approximately 80 teams representing seven different countries at the Formula Lincoln event and some 30 different teams at the Formula North event. Cyclone Racing is currently ranked fourth in the United States and fourteenth in the world out of 550 teams. Most aspects of being a professional racing team are evaluated and judged, and the team operates largely from private sponsorship with support from Iowa State University. Teams must demonstrate a top-performing racing machine on the track, and also demonstrate their working knowledge of both engineering and marketing through a series of presentation events.

When designing their latest vehicle, CR22, one of the team’s goals was to reduce the weight of the vehicle’s rear aerodynamic wing. Nate Lenz, Cyclone Racing’s Technical Director at the time, noted, “With last year’s car, the internal wing structure was very heavy, to the point that we would see some very excessive roll, and a few times, even though the car was super-fast, we would find ourselves up on two wheels. Keeping that in mind, a huge goal with this year’s car was to reduce the weight of the entire wing package, while also ensuring that it was very strong and stiff.”

Nate first learned about solidThinking Inspire from a flyer he saw posted on campus. “It immediately caught my attention,” he said, “and I thought it was fascinating, but other priorities came up and I did not have a chance to try it at that time.” When the project to redesign the bracket mount for the rear wing package came up, Nate immediately thought of Inspire. “Knowing that the mount had to be extremely light, while also being as stiff as possible, it seemed like a perfect project to try Inspire on. After struggling to complete the project with some other tools, I downloaded solidThinking Inspire.”

solidThinking Inspire in the design process

The first step in using Inspire was to learn how to use the tool successfully. Nate mentioned, “Inspire was very intuitive to learn— it honestly only took about five hours of working through the tutorial models for me to become comfortable with using the tool.” Once confident enough with the tool and its capabilities, the team created an initial design space for the brackets in an external CAD tool. “This particular beam was unique in that it had to stretch over a long distance, be high off the ground, and put under a bending load. The nice thing with it was that we were only constrained by the mounting locations, so we were able to work through a few different design space options, as well as loading scenarios, prior to ending up on the final design.” After running through a number of different iterations in Inspire, the team was able to select a final optimized design for the bracket which it then used Inspire, as well as third-party analysis and verification tools in order to simulate and analyze the performance of the part.

Mount design space and loads setup in Inspire.

After the design was verified, the team moved into the manufacturing process, where the new brackets were manufactured using waterjet cutting—which was not only quick but also very cost-effective. Nate mentioned, “I really liked being able to set the different manufacturing and symmetry constraints in Inspire. This allowed us to design the part specifically for the manufacturing process we wanted to use.”

Results

New optimized mount design and analysis in Inspire.

The new swan-neck wing mounts were a great success. Not only did Inspire allow the team to design these parts for the specific manufacturing process they wanted to use—waterjet cutting—it also enabled them to significantly reduce the weight of the entire wing package from approximately seven pounds to four. “The weight reduction in the mounts was significant,” Nate reported. “We even went from a hollow wing last year to a foam-filled wing this year, which increased its weight, so the reduction in weight for the mounts was imperative. This ultimately helped reduce the weight of the entire car, and helped us perform better in competition. The mounts were not only very light, they were also very stiff and survived all of the rigors that our competitions put on them. My teammates regularly come up to me now and say, ‘Hey, Nate, can you solidThinking this part for us?’”

Full wing structure including optimized swan-neck mounts.

What’s next?

Today Nate is on the senior design team of Cyclone Racing, where he and the team are currently working on some new and exciting projects. “We plan to continue to use Inspire,” he says. “Right now we are completely looking to redesign the car’s differential. This will be integrated into the car with a number of new mounts, as we will be going from a floating differential and floating engine, to now having them mounted in-between each other. We are working on taking the new loads from the chain tension and applying these in Inspire to generate and design all of the new mounts, which will be water-jetted or machined.” Nate also mentions that a number of other teammates are working on learning Inspire so Cyclone racing can use and reap the benefits of using the tool into the future.

About Iowa State University

Iowa State University SAE International is a student organization of five teams: Baja, Clean Snowmobile Challenge, Aero, Formula and Supermileage. Iowa State University SAE International’s mission is to expand upon the ISU classroom education through participation, leadership, outreach, design and fabrication in the Baja, Clean Snowmobile, Formula and Supermileage SAE Collegiate Design Series competitions. These internationally sanctioned competitions allow colleges from around the world to compete every year.

Iowa State University SAE 2025 Black Engineering, Ames, IA 50011

stuorgs.engineering.iastate.edu/sae/

http://forum.solidthinking.com/

Filed Under: Featured Tagged With: solidthinking

The Evolution of CAD

June 15, 2015 By 3DCAD Editor Leave a Comment

by Darren Chilton, Program Manager, Product Strategy and Development, solidThinking

Designers seeking a solution for creating products for additive manufacturing, look no further than hybrid modelers. Without the constraints of traditional CAD tools, these programs help you explore product designs and create alternatives all in one place.

Computer Aided Design (CAD) software first came onto the scene in the later part of last century to help engineers, designers and other industrial users create accurate, dynamic models quickly. Several programs over the years have done just that: revolutionized the design process, cut turnaround times and enabled more complex product designs. As the industry continues to develop, however, many designers are finding that CAD solutions are too rigid and do not allow enough creative freedom when designing products.

CAD is a great tool for documenting a design after a designer has worked out all the dimensions and details on paper or with physical 3D models. But when it comes to allowing designers the freedom to create new products and experiment with design alternatives, CAD often misses the mark.

A new player is rising in the 3D modeling industry: hybrid modelers. Hybrid modelers pack the power of CAD into a package that is intuitive and includes tools that leave room for greater creativity.

CAD reimagined
CAD programs typically rely on solid modeling, a technique well suited for creating parts to be mass manufactured, but not known for its flexibility. When creating more fluid or organic forms, designers usually prefer polygonal modeling or surface modeling. Each of the three major modeling styles offers advantages and disadvantages. For instance, polygonal modeling makes it easy to quickly flesh out forms, but can be difficult to control the model with exact dimensions. The goal of a hybrid modeler is to blend two or more of the modeling styles into one program that leverages the advantages of each.

The challenge in creating any hybrid modeler is making the different modeling styles play nicely with each other. Most hybrid modelers start as a successful program using one of the modeling styles. When an additional modeling style is packaged with the program, often as a third part plug-in, it may feel disjointed and may not work well with the initial set of tools.

One new program that overcomes this objection is solidThinking’s Evolve. This program was conceptualized as an all-in-one hybrid modeler from the beginning. The program was built to highlight the strengths of each of the three major modeling styles in a cohesive approach. The result is an interface that allows users to seamlessly move between modeling styles.

The core value of a hybrid modeler is the flexibility it gives you. The ability to use multiple modeling styles in one model lets you create the intended forms while still being able to apply precise details with tools like rounds and trims. You also have the flexibility to start a model using one technique then prepare it for manufacture using a different technique.

bicycle-helmet
Clicking the Nurbify button in Evolve 2015 converts the polygonal modeled helmet (left) into a solid NURBS surface (right) with one click.

Above is an example of a bicycle helmet that was designed using polygonal modeling. The designer was able to quickly create the form and design of the helmet, but was left with a model that wasn’t usable for manufacturing. Using Evolve’s Nurbify option, the designer was able to convert the model into a smooth NURBS surface with a single click. The geometry can either be further refined, or sent directly to manufacturing.

Technologies like Nurbify can change the way you approach product design. Instead of creating a mountain of sketches to work out every aspect of a design, you can move into 3D earlier. You can make more accurate decisions earlier in the design process, as well as explore multiple design iterations. Some of the best designs end up being happy accidents that are developed while you experiment with different forms and ideas.

bikeframe
solidThinking’s Evolve was conceived as an all-in-one hybrid modeler. The program was built to highlight the strengths of each of the three major modeling styles in a cohesive approach. The result is an interface that allows users to seamlessly move between modeling styles.

One example is a design for a pen. The designer in this instance fleshed out some basic forms of the pen, then worked through various iterations until a final design was achieved. With Evolve’s flexible set of tools specifically developed for this type of workflow, the designer created these designs in minutes compared to the hours it may have taken in a traditional CAD program.

pen-designs-created-with-solidThinking-Evolve
Using the Construction History feature in Evolve, the designer was able to efficiently create multiple iterations of a pen design.

Creating a one stop shop
In the 3D modeling industry there are several programs that specialize in various parts of the concept creation, modeling, visualization, or manufacturing process. The wide set of options gives you plenty of choices, but often means the model has to be moved between several costly programs along the way.

In addition to creating ease of use between the major 3D modeling styles, hybrid modelers include more complete toolsets to ensure designers work as efficiently as possible. Evolve 2015 includes a completely updated rendering engine that emphasizes ease of use and creates visually stunning renderings.

In this instance, the designer created a design using Evolve, then rendered it using native tools. Thus, Evolve, enables you to keep most — if not all — of your project in one program throughout the process. By packaging multiple functions into one software solution, hybrid modelers are more attractive to emerging manufacturing technologies.

Disrupting traditional manufacturing
One of the most notable emerging technologies today is additive manufacturing. Though the technology has been around for decades, new technologies and tools are making it more accessible than ever. With these manufacturing options, the industry is seeing products with more complex and sophisticated geometry.

Additive manufacturing enables a complete shift in how you are able to design products. 3D printers can make forms that are not possible using traditional methods. Beyond being able to make low volume parts faster, you are able to make parts lighter without sacrificing structural integrity.

bicycle-part
The original part (left) was optimized to remove unnecessary material and resulted in an organic, efficient form (right) ready for 3D printing.

Take the part above, the image on the left is the original part prepared for traditional manufacturing. At 6.2 lb, there is room for weight reduction, but traditional manufacturing methods are not able to handle the complexity of the more efficient structures. In this case, the designer optimized the part in solidThinking Inspire by applying the required loads and constraints, which then removed all the non-essential material. The optimized part was then prepared for manufacturing using Evolve. The result, shown on the right, is an organic structure that reduced the part mass by 35% and brought the final weight below 4 lb. The complex structure is not suited for traditional manufacturing, but is easily handled by a 3D printer.

Similar to traditional manufacturing methods, traditional CAD programs have difficulty handling complex organic structures. To create these structures, designers rely on hybrid modelers and their ability to create organic geometry.

Hybrid modelers and additive manufacturing
Additive manufacturing is making it easier than ever to create new products and prototypes. Similarly, hybrid modelers make it easier to conceptualize the products and prepare them for manufacturing. For this reason, many designers consider hybrid modelers a great solution for additive manufacturing.

coffee-cup-stack
Creating quick iterations of an initial concept is ideal for users preparing products for additive manufacturing.

With Evolve software, the designer can quickly and easily create variations of a design, as shown here with unique mugs. In the world of additive manufacturing, the designer isn’t locked into manufacturing a certain number of products to save costs. This allows greater design flexibility and the opportunity to make changes even after manufacturing has begun.

Using a traditional CAD program, a designer would have to create each one of these iterations separately; this is where hybrid modelers provide a significant advantage. Once the base mug is designed, the designer can create and experiment with several designs in just minutes. The iterations of these designs were powered by a unique construction history feature. While working in the hybrid environment, a designer can make changes to the original design and the entire model updates responsively.

“Evolve’s Construction Tree history lets you seamlessly go back and edit your models without having to start the process over; this is key to help expedite the timeline,” said Jared Boyd, product design manager at Dimensions Furniture.

In addition to making it easier to iterate and create designs, hybrid modelers make it easier to communicate with various members of the manufacturing process with options to export the model in most major 3D formats or create photorealistic images and animations.

CAD, evolved
CAD programs can be beneficial in certain areas of product development, but with the introduction of hybrid modelers, designers are free from the constraints of traditional CAD programs and can create innovative products faster and easier. Not only do these programs lead to greater efficiency, they also ease communications between designers and vendors while leaving plenty of room for creativity.

The future relationship between additive manufacturing and hybrid modelers is exciting. Huge advances are already being made in industries with high cost, low volume products like aerospace, defense and medicine.

Reprint info >>

solidThinking
www.solidthinking.com

Filed Under: CAD Blogs, CAD Industry News, General Blogs, Rapid Prototyping Tagged With: solidthinking

Introducing solidThinking Evolve 2014

February 28, 2014 By Jennifer Calhoon Leave a Comment

The Next Generation of Industrial Design Software is Here!

solidThinking Evolve 2014

See it live in our FREE Webinar

SolidThinking

With the release of solidThinking Evolve 2014, we have introduced a new level of usability and efficiency. Model and render like never before with our class-leading new features.

solidThinking Evolve builds on our prior releases by adding the following key features:

  • New Construction Aids and Scene Management
  • Enhanced User Interface Options
  • Improved Modeling Tools
  • Live Linking to KeyShot
  • Many More…

Register for our FREE webinar below to see all of the new features in action and see how solidThinking Evolve can help you develop better products on PC or Mac!

Register Now:

Tuesday, March 11, 2014

9:00 a.m. EST (2:00 p.m. GMT)
2:00 p.m. EST (7:00 p.m. GMT)

solidThinking
www.solidthinking.com

Filed Under: CAD Industry News, News, Simulation Software Tagged With: solidthinking

Primary Sidebar

3D CAD NEWSLETTERS

MakePartsFast

Follow us on Twitter

Tweets by 3DCADWorld

Footer

3D CAD World logo

DESIGN WORLD NETWORK

Design World Online
The Robot Report
Coupling Tips
Motion Control Tips
Linear Motion Tips
Bearing Tips

3D CAD WORLD

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
Follow us on Twitter Add us on Facebook Add us on LinkedIn Add us on Instagram Add us on YouTube

3D CAD World - Copyright © 2021 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy