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This study addresses this goal using high-fidelity 3D finite element analyses. We compute the deformation profiles and amplitudes caused by harmonic forces applied in the normal direction at four locations: the center of the finger pad, the side of the finger, the tip of the finger, and the oblique midpoint of these three sites. The excitation frequency is swept from 2.5 to 260\u00a0Hz. The simulated frequency response functions (FRFs) obtained for displacement demonstrate that the relative magnitudes of the deformations elicited by stimulating at each of these four locations greatly depend on whether only the excitation point or the entire finger is considered. The point force that induces the smallest local deformation can even cause the largest overall deformation at certain frequency intervals. Above 225\u00a0Hz, oblique excitation produces larger mean displacement amplitudes than the other three forces due to excitation of multiple modes involving diagonal deformation. These simulation results give novel insights into the combined influence of excitation location and frequency on the fingertip dynamic response, potentially facilitating the design of future vibration feedback devices.<\/jats:p>","DOI":"10.1007\/s10237-024-01844-4","type":"journal-article","created":{"date-parts":[[2024,5,3]],"date-time":"2024-05-03T15:42:16Z","timestamp":1714750936000},"page":"1369-1376","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Fingertip dynamic response simulated across excitation points and frequencies"],"prefix":"10.1007","volume":"23","author":[{"given":"Gokhan","family":"Serhat","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katherine J.","family":"Kuchenbecker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,5,3]]},"reference":[{"issue":"8","key":"1844_CR1","doi-asserted-by":"publisher","DOI":"10.1098\/rsos.170321","volume":"4","author":"A Abdouni","year":"2017","unstructured":"Abdouni A, Djaghloul M, Thieulin C, Vargiolu R, Pailler-Mattei C, Zahouani H (2017) Biophysical properties of the human finger for touch comprehension: influences of ageing and gender. 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