1 / 12

Vehicle Problem

Vehicle Problem. Stephen Moore ME270 Prof. Granda October 30, 2007. Vehicle Problem. Car impacting a wall at various speeds Car driven at 25, 40, and 55 mph. Parameters given. Mass of the car- 1500kg Mass of the driver- 100kg Spring constants of the bumper- 300,000 N/m

crevan
Download Presentation

Vehicle Problem

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Vehicle Problem Stephen Moore ME270 Prof. Granda October 30, 2007

  2. Vehicle Problem • Car impacting a wall at various speeds • Car driven at 25, 40, and 55 mph

  3. Parameters given • Mass of the car- 1500kg • Mass of the driver- 100kg • Spring constants of the bumper- 300,000 N/m • Resistance of the bumper- 80,000 N-s/m • Spring constants of the seatbelts- 10,000 N/m • Resistance of the seatbelts- 500 N-s/m • Masses stay the same, the spring constants and the resistances change

  4. Ic 0 1 Sf w 1 1 0 Id 1 1 R1 Rb C1 Cb C1 R1 Bondgraph model

  5. Design Criteria • Driver does not hit the windshield at 25 and 55 mph • Forces on driver at 25 and 55 mph • Critical maximum velocity • Traveling without a seatbelt, how long does it take to hit the windshield?

  6. #1. Driver does not hit the windshield at 25 and 55 mph • After running the models in Campg and running Matlab programs, the acceptable criteria are shown in table below.

  7. Displacement of the driver Displacement the driver experiences at 55 mph. Displacement the driver experiences at 25 mph.

  8. #2. Forces the driver experiences upon impact

  9. #2 Forces the driver experiences The figure is the force the driver experiences at 25 mph. The figure is the force the driver experiences at 55 mph.

  10. #3. Critical maximum velocity

  11. #4. Traveling without a seat belt, how long does it take the driver to hit the windshield?

More Related