div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=web-actuations-per-foot-step-1-up-and-1-down-actuation-of-the-piezo-strips-forceshtmlpage=1 data-page=1 class=ts-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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentssitereader033viewer20220527125ae2d2a37f8b9a495c8c7e3bhtml5thumbnails1jpg width=140 height=200 divdiv