Rotation-Dilation Coupled Flexure Oscillator with negative dilation

<p>Mock-up of a RDCO flexure oscillator showing a negative dilation, i.e, contraction, coupled to the rotation of the system. The mock-up was fabricated by laser cutting a 5 mm thick Polyoxymethylene (POM) sheet. It has an outer diameter of 200 mm and an angular stroke of&nbsp;&plusmn;18&nbsp;degrees.</p> <p>This is a video supplement to the article &quot;Design of a Flexure Rotational Time Base with Varying Inertia&quot; published in the &quot;Journal of Mechanical Design&quot;.</p>