Search found 502 matches

by brian
Wed Oct 21, 2009 8:29 pm
Forum: General Reconstruction Analysis
Topic: Windshield Resistance?
Replies: 2
Views: 4160

Re: Windshield Resistance?

You mention a 'low speed underride event', please be sure to also see our thread Underride Crash for additional information. Another possible source for lower speed underride crash tests which might include data on windshield resistance is an outfit formerly called ' The Midwest Transportation Insti...
by brian
Wed Oct 21, 2009 7:46 pm
Forum: General Reconstruction Analysis
Topic: Windshield Resistance?
Replies: 2
Views: 4160

Re: Windshield Resistance?

Quick search on full-scale windshield tests reveals some with headform impacts. These may provide a basis for approximating the resistance of a 'typical' windshield. Glazing for Motor Vehicles-1995 , SAE Paper 952717,L. M. Patrick - Wayne State Univ. Abstract: There are four viable types of glazing ...
by brian
Tue Oct 20, 2009 11:03 pm
Forum: What Is?
Topic: What is Tire Cornering Stiffness?
Replies: 0
Views: 7480

What is Tire Cornering Stiffness?

Q: What is Tire Cornering Stiffness? A: When a tire is orientated at an angle not equal to its direction of motion, a side force acts perpendicular to the plane of the wheel. The relation is nearly linear for small slip angles. The relationship that defines side force as a function of slip angle mak...
by brian
Tue Oct 20, 2009 9:43 am
Forum: What Is?
Topic: What is the Static Margin?
Replies: 0
Views: 4794

What is the Static Margin?

Q: What is the Static Margin? A: The Static Margin is defined as the longitudinal distance from the center of gravity (CG) to the neutral steer point divided by the wheelbase. staticMargin1.jpg It is positive if the CG is forward of the neutral steer point. The neutral steer point is the point at wh...
by brian
Mon Oct 19, 2009 9:23 pm
Forum: Crash Reconstruction & Investigation News
Topic: Hybrid Cars May Include Fake Vroom for Safety
Replies: 3
Views: 4441

Re: Hybrid Cars May Include Fake Vroom for Safety

Custom backup sounds for your hybrid/electric vehicle! And you thought cell phone ringtones were obnoxious! Quiet hybrids may get custom engine noises for safety's sake New York Times,10/15/2009 Working with Hollywood special-effects wizards, some hybrid auto companies have started tinkering in sou...
by brian
Mon Oct 19, 2009 8:56 pm
Forum: CRASH & Damage/Momentum Analysis
Topic: What is the "Effective Mass" in the CRASH equations?
Replies: 3
Views: 3318

Re: What is the "Effective Mass" in the CRASH equations?

For a recent paper which examines the "Effective Mass' concept see: " An examination of the CRASH 3 effective mass concept ", SAE paper 2004-01-1181, Rose, Fenton & Ziernicki The paper is essentially a review and presentation of the concepts originally created and presented by McHenry, see NHTSA CRA...
by brian
Sat Oct 17, 2009 4:12 pm
Forum: McHenry James Bond Spiral Jump
Topic: Question on McHenry James Bond Spiral Jump Stunt
Replies: 9
Views: 29068

Re: Question on McHenry James Bond Spiral Jump Stunt

Q: What was the car? (this question was posted up on the youtube site of the video) A: The stunt was originally done by the All American Thrill Show with an AMC Javelin . It was first performed at the Houston Astrodome on Jan. 15,1971 astrospiral.gif For the James Bond movie Man with The Golden Gun ...
by brian
Fri Oct 16, 2009 1:25 pm
Forum: General Reconstruction Analysis
Topic: Underride Crash
Replies: 2
Views: 3741

Re: Underride Crash

Found and uploaded to the website another report of interest for underride crashes: DOT HS 808 231,Final Report,June 1993, Final Report of a 1990 Ford Taurus into Heavy Truck Rigid Rear Underride Guard in Support of CRASH3 Damage Algorithm Reformulation (7 megs) PURPOSE AND TEST PROCEDURE The purpos...
by brian
Fri Oct 16, 2009 11:12 am
Forum: CRASH & Damage/Momentum Analysis
Topic: What is the CRASH Energy Correction Factor (ECF)?
Replies: 5
Views: 6302

What is the CRASH Energy Correction Factor (ECF)?

Q: What is the Energy Correction Factor (ECF) used in Damage Analysis? A: Crush properties of vehicles are measured and fitted for crush directions that are perpendicular to the involved end or side of a vehicle. However, in an oblique collision, a component of the tangential friction force acts to ...
by brian
Fri Oct 16, 2009 10:17 am
Forum: General Reconstruction Analysis
Topic: Underride Crash
Replies: 2
Views: 3741

Underride Crash

Q: I have a situation where a pickup struck the side of a semi trailer between the landing gear and the trailer's wheels. The trailer was at a 30 degree angle to the pickup and the pickup skidded straight into the collision. Any information on this type of damage? A: NOTE: In an angled underride cra...