Side impact injury test apparatus

• US 5,872,321 A
• Filed: 12/08/1997
• Issued: 02/16/1999
• Est. Priority Date: 12/08/1997
• Status: Expired due to Fees

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Yannaccone, John R.
• Primary Examiner(s): Noori, Max H.
• Application Number:
  US08/986,547
• Time in Patent Office: 435 Days
• Field of Search: 73/865.3, 73/865.6, 73/865.8, 73/12.04
• US Class Current: 73/865.3
• CPC Class Codes: G01M 17/0078 Shock-testing of vehicles
• CPC Class Codes: G01M 7/08 Shock-testing

Abstract

An apparatus for conducting impact events for use in conjunction with a hzontal accelerator includes a base having tracks attached to the top thereof; a seat slidably attached to the tracks, the seat capable of moving independently of the base and along the tracks, the seat for positioning a test dummy before and during an impact event; a barrier positioned and arranged adjacent one end of the base for impacting the test dummy, the barrier having load cells for generating signals in response to the impact between the test dummy and the barrier; an attenuator for impacting the seat and accelerating the seat up to the velocity of the base when the base is accelerated by the horizontal accelerator; and an anti-reverse mechanism for retaining the seat after the seat is accelerated up to the velocity of the horizontal accelerator. In operation, a test dummy is positioned on the seat and secured, if desired. The seat is slidably positioned on the base the desired distance from the barrier. The horizontal accelerator is fired, in accordance with a predetermined acceleration profile. As the base accelerates, the seat contacts the attenuator wherein the dummy begins to slide off the seat and impact the barrier. The load cells in the barrier generate signals in response to the impact. After the seat contacts the attenuator, the anti-reverse mechanism retains the seat adjacent the barrier.

Claims

1. An apparatus for conducting collision events, the apparatus for use in conjunction with an acceleration device, comprising:

a base having a first end and a second end, the base attached to the acceleration device;

track means attached to said base and extending from the first end of said base to the second end of said base;

seat means slidably communicating with the track means for positioning a test dummy prior to and during an impact event, the seat means capable of moving along said track means;

barrier means located adjacent said first end of said base for impacting the test dummy located on said seat means when said seat means is adjacent said first end of said base, said barrier means also for generating one or more signals in response to said test dummy impacting said barrier means;

attenuator means located adjacent said first end and positioned and arranged to impact said seat means when said seat means is adjacent said first end, the attenuator means causing said seat means to be accelerated up to the velocity of said base when said acceleration device is fired to accelerate said base;

anti reverse means for retaining said seat means adjacent said barrier means after said seat means is accelerated up to the velocity of said base.

2. An apparatus for conducting simulated crash events comprising:

a seat;

track means;

an attenuator;

a base;

barrier means;

wherein the seat, the track means, the attenuator, the barrier means and the base communicate with an accelerator and with each other to cause said seat to move along said track means and be accelerated up to the velocity of said accelerator and said barrier means after said accelerator is fired and after said accelerator and said barrier means have attained a predetermined terminal velocity and after said seat has contacted said attenuator.

3. The apparatus defined in claim 2, further including anti-reverse means for retaining said seat adjacent said attenuator after said seat contacts said attenuator.

4. The apparatus defined in claim 2, further including a barrier positioned and arranged to contact a test dummy located on said seat after said seat initially contacts said attenuator, the barrier having means for generating a signal in response to said test dummy contacting said barrier.

5. The apparatus defined in claim 4, further including anti-reverse means for retaining said seat adjacent said attenuator after said seat contacts said attenuator.

6. The apparatus defined in claim 5, wherein said track means includes two tracks positioned and arranged in a parallel fashion.

7. The apparatus defined in claim 6, wherein the tracks each include a support and a rail.

8. The apparatus defined in claim 7, wherein said attenuator includes a hydraulic damper, a shaft, a return spring and a rod end plate.

9. The apparatus defined in claim 5, wherein said track means includes a support and a rail.

10. The apparatus defined in claim 9, wherein said attenuator includes a hydraulic damper, a shaft, a return spring and a rod end plate.