div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentweb-actuations-per-foot-step-1-up-and-1-down-actuation-of-the-piezo-strips-forceshtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: webstevensedu · 2 Actuations per foot step 1 up and 1 down Actuation of the piezo strips forces vibration at the ideal vibration frequency for power generation the loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsnetreader033viewer20220527125ae2d2a37f8b9a495c8c7e3bhtml5thumbnails1jpg width=140 height=200 divdiv