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1.
Stapp Car Crash J ; 47: 551-70, 2003 Oct.
Article in English | MEDLINE | ID: mdl-17096264

ABSTRACT

This paper describes the design and development of a small female crash test dummy, results of biofidelity tests, and preliminary results from full scale 3 point belt and airbag type sled tests. The small female THOR was designed using the anthropometric data developed by Robbins for the 5(th) percentile female and biomechanical requirements derived from scaling the responses of the 50(th) percentile male. While many of the mechanical components of the NHTSA THOR 50(th) percentile male dummy were scaled according to the appropriate anthropometric data, a number of improved design features have been introduced in the new female THOR. These include; improved neck design, new designs for the head and neck skins: and new designs for the upper and lower abdomen. The lower leg, ankle and foot, known as THOR-FLx, were developed in an earlier effort and have been included as a standard part of the new female dummy. The instrumentation on the dummy is generally the same as in the male THOR-Alpha dummy. A few sensors, which were thought to be of secondary importance, were eliminated because of the limited volume within the female dummy. Scaled versions of the biofidelity tests defined for the male THOR were used to test the response of the new dummy.

2.
Stapp Car Crash J ; 46: 267-83, 2002 Nov.
Article in English | MEDLINE | ID: mdl-17096229

ABSTRACT

A new lower leg/ankle/foot system has been designed and fabricated to assess the potential for lower limb injuries to small females in the automotive crash environment. The new lower extremity can be retrofitted at present to the distal femur of the 5th percentile female Hybrid III dummy. Future plans are for integration of this design into the 5th percentile female THOR dummy now under development. The anthropometry of the lower leg and foot is based mainly on data developed by Robbins for the 5th percentile female, while the biomechanical response requirements are based upon scaling of 50th percentile male THOR-Lx responses. The design consists of the knee, tibia, ankle joints, foot, a representation of the Achilles tendon, and associated flesh/skins. The new lower extremity, known as THOR-FLx, is designed to be biofidelic under dynamic axial loading of the tibia, static and dynamic dorsiflexion, static plantarflexion and inversion/eversion. Instrumentation includes accelerometers, load cells, and rotary potentiometers to capture relevant kinematic and dynamic information from the foot and tibia. This paper will describe the performance requirements for THOR-FLx, the methodology used in its' development, results of component tests, and the biofidelity tests conducted on the full assembly.

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