During space shuttle operations, astronauts require support to carry out tasks in the weightless environment. In the past, portable foot restraints (PFR) with orientations adjustable in pitch, roll, and yaw provided this support for payload bay operations. These foot restraints, however, were designed for specific tasks with a load limit of 111.2 Newtons. Since the original design, new applications for foot restraints have been identified. New designs for the foot restraints have been created to boost the operational work load to 444.8 Newtons and decrease setup times. What remains to be designed is an interface between the restraint system and the extravehicular mobility unit (EMU) boots. NASA provided a proposed locking device involving a spring-loaded mechanism. This locking mechanism must withstand loads of 1334.4 Newtons in any direction and weigh less than 222.4 Newtons. This paper develops an embodiment design for the interface between the PFR and the EMU boots. This involves design of the locking mechanism and a removable cleat that allows the boot to interface with this mechanism. The design team used the Paul Beitz engineering methodology to present the systematic development, structural analysis, and production considerations of the embodiment design. This methodology provides a basis for understanding the justification behind the decisions made in the design.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    M.E.366-J embodiment design project: Portable foot restraint


    Contributors:

    Publication date :

    1994-04-25


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    M.E.366-J Embodiment Design Project: Portable Foot Restraint

    R. Heaton / E. Meyer / D. Schmidt et al. | NTIS | 1994


    Prehensile Foot Restraint

    Willits, Charles A. | NTRS | 1987


    Portable restraint system

    JIANG CHUNLING / LIU JIANCHUN / JI XUEWEI | European Patent Office | 2021

    Free access

    Portable child safety restraint

    ANDERSON PEARLIE / WALTERS KATHY / WALTERS SONJA | European Patent Office | 2015

    Free access

    Fixed Or Controlled-Movement Foot Restraint

    Reilly, Gloria B. / Blizzard, Noah | NTRS | 1992