Master of Science, The Ohio State University, 2013, Mechanical Engineering

Force measurement platforms play an important role in the field of biomechanics by allowing for accurate measurement of the ground reaction forces during studies. Several varieties of forces measurement platforms are available on the market, although strain gage based force platform are most prevalent. This thesis details the design of a 6-component load cell consisting of a machined aluminum cylinder with attached strain gages for use in force platforms. The load cell design is intended to improve accuracy, increase the natural frequency, and improve the calibration process for strain gage based force measurement platforms. The performance of different load cell geometries were tested using finite element analysis to determine strain levels. Once optimal load cell geometries were determined, two sets of load cells were manufactured and implemented in a full force platform assembly. While one of the prototype load cell designs proved to be ineffective in final installation, the other design slightly improved the natural frequency, maintained the accuracy, and allowed for a simplified calibration process.

Committee: Necip Berme Dr. (Advisor); Manoj Srinivasan Dr. (Committee Member) Subjects: Biomechanics; Mechanical Engineering