Anthony F. Luscher

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ii ABSTRACT Wear of multiphase materials at the micro/nanoscale is important in devices such as magnetic tape and disk drives, where the thin-film read-write heads are multiphase. Differential wear, which is caused by differences in wear resistance among the head's phases, causes thin-film poles to recede from the head's bearing surface; this phenomenon is(More)
Designing a strain gage based force transducer is considered more of an art than an engineering process. Only general guidelines are available, and many trial and error iterations are needed to optimize the geometry and minimize the errors caused by nonlinear behavior of the structure. A new method, based on nonlinear finite element analysis and robust(More)
OBJECTIVE A new protocol was evaluated for identification of stiffness, mass, and damping parameters employing a linear model for human hand-arm dynamics relevant to right-angle torque tool use. BACKGROUND Powered torque tools are widely used to tighten fasteners in manufacturing industries. While these tools increase accuracy and efficiency of tightening(More)
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