Presentation on theme: "Test Drive CARS 2005! You can use the following shortcut keys to control the demo Advance to the next slideENTER, or the SPACEBAR (or click the mouse)"— Presentation transcript:
Test Drive CARS 2005! You can use the following shortcut keys to control the demo Advance to the next slideENTER, or the SPACEBAR (or click the mouse) Return to the previous slideBACKSPACE End a slide showESC Display the shortcut menuSHIFT+F10 (or right-click)
What is CARS 2005? uComputerized Application and Reference System. uA computerized version of the Automotive Steel Design Manual (ASDM). uBrings together material, design and manufacturing information for automotive designers and engineers. Example Demo
What is under the hood? uApplication Mode - Provides numerical and graphical solutions to the design procedures and equations found in the ASDM. uReference Mode - Quickly and selectively presents the information found in the ASDM. The CARS engine consists of: Example Demo
What are CARS 2005 accessories? uGAS - Geometric Analysis of Sections, Enhances the power of the CARS engine, by calculating geometric section properties for arbitrary thin-walled sections. uMAP - Material Archive Program, Provides easy access to the most frequently used automotive steels, with a full selection of material properties. uKEY - Key to Auto Steel Design, Simplifies CARS startup and operation with automatic selection of design procedures. Example Demo
Why should you drive CARS 2005? uCARS solves complex design problems and increases speed and accuracy of the design process. uReduces the possibilities of errors and increases productivity by simplifying calculations. uProvides immediate access to reference material. uHelps make the most effective use of steel. Example Demo
CARS MAP CARS DESIGN KEY CARS ASDM CARS Help CARS Test Drive CARS 2005 Instrument Panel Use CARS GAS to perform geometric analysis of sections. Select materials from CARS MAP. The Automotive Steel Design Manual is available online with hyper text links. Is a handy unit conversion utility. Offers extensive assistance on CARS features and usage. Shows this demo. Launch any of the CARS accessories with a single mouse click! Compute equations, and perform interactive design, with CARS KEY. CARS GAS CARS Unit Conversion
Compute equations or... Example Demo
Do a parametric study of an equation! Example Demo
Perform interactive design procedures as presented in the manual. Example Demo
Calculate nominal and effective section properties. Input geometry using the mouse, keyboard or tablet, or import from a DXF or IGES file. Example Demo
Use CARS MAP to choose materials from the ASDM. Example Demo
The ASDM is available online with hypertext and zooming capabilities. Example Demo
CARS 2005 Driving School uA short seminar sponsored by the Auto/Steel Partnership. uProvides a detailed overview of the CARS program. uAllows hands-on training and problem solving. uFree admission to qualified individuals. If you would like to attend the CARS Driving School please call AISI/CARS Desktop Engineering Int'l Inc Example Demo
Bethlehem Steel Corporation Dofasco Inc. Ispat Inland Inc. CARS development was sponsored by the American Iron and Steel Institute in cooperation with DaimlerChrysler AG, Ford Motor Company, and General Motors Corporation. National Steel Corporation Rouge Steel Company United States Steel Corporation CARS 2005 Development Team
CARS development was sponsored by the American Iron and Steel Institute in cooperation with DaimlerChrysler AG, Ford Motor Company, and General Motors Corporation. CARS is developed and supported by Desktop Engineering Int'l Inc. CARS 2005 Development Team
Let us go through an example to see how CARS can be used to solve a typical automotive problem....
Make the UltraLight lighter... Problem: Reduce the mass of the front rail and maintain axial capacity. Drive through the CARS 2005 model to make required design changes, meet structural requirements, and still reduce mass. CARS Solution:
The front rail and its connection to the body have a great influence on load transfer. A new UltraLight front rail was created to improve the load transfer by distributing the load along three paths. The front rail is joined directly to the rocker. The dash cross member transfers loads cross-car. The front rail extension carries some of the load directly to the front floor cross member.
UltraLight front rail t = 1.55 mm t = 1.3 mm 51 mm mm Can the hat section be replaced by the hexagonal section while achieving mass reduction and maintaining strength? We will use CARS 2005 to find out...
Information on the equations and design procedures used in this example can be accessed using the online Automotive Steel Design Manual...
First we pick a material from the CARS material database to be used as the default material for all further analyses.
Use GAS to compute the nominal properties of the hat section.
The mass of the hat section (Area * length *mass density) is computed to be 1.16 kg, using t = 1.55 mm
Also compute the effective properties of the hat section...
The effective properties under axial load are calculated using the material properties from MAP.
These nominal and effective properties will be transferred to the CARS design procedures.
Use a CARS 2005 design procedure to calculate the axial capacity of the front rail.
We will use the calculated gas results in the design procedure.
Use the effective properties to compute the axial capacity for the hat section.
Repeat the calculations for the hexagonal section. Compute the nominal properties.
The mass of this member (Area * length * mass density) is computed to be 1.07 kg, using t = 1.3 mm
Compute the effective properties.
The effective properties for the hexagonal section are used to compute the axial capacity of the member.
Summary HAT Section: HEXAGONAL Section: Thickness: 1.55 mm Axial Capacity: 151,800 N Mass: 1.16 kg Thickness: 1.3 mm Axial Capacity: 154,200 N Mass: 1.07 kg We find that the hexagonal section can effectively replace the hat section.
We have achieved a mass reduction of 8% and maintained the axial capacity by following the CARS design procedures.
How to order CARS 2005 Order the complete cars program for only $450, or $225 if your company is a member of Auto/Steel Partnership. CARS has a 30 day money back guarantee. If you are not satisfied for any reason simply return the program for a full refund. CARS Driving School attendees receive a complimentary copy of CARS To order AISI/CARS, simply write or call: AISI/CARS Desktop Engineering Int'l Inc. 172 Broadway Woodcliff Lake, NJ