Lin, Cheng-HsienCheng-HsienLinLin, Cheng-ChuanCheng-ChuanLinPEI-CHUN LINFU-LING YANG2024-12-242024-12-242025-01-0127089967https://www.scopus.com/record/display.uri?eid=2-s2.0-85210940551&origin=resultslisthttps://scholars.lib.ntu.edu.tw/handle/123456789/724352This work presents the development, test, and analysis of a scallop robot prototype that generates jet propulsion with cyclic bivalve clapping motion. Through observing the real scallop swimming and understanding of its organ function, the robot was made of a streamlined fiberglass lower shell and a flat Plexiglas upper disk driven to clap periodically by a built-in RC motor and crank-slider four-bar linkage. Two jet holes were created at the rear side of the lower shell and a water guide towards the jet holes were created by silica gel to mimic the cavity between the mantle and adductor muscle of a real scallop. The robot performance was evaluated by its forward velocity U(t) and systematic experiments were conducted to study how the cycle-averaged velocity varies with the clapping frequency and amplitude. A complementing hydrodynamic model is also developed for the scallop motion. A general trend that U increased with the clapping frequency was observed from both the experimental data and the model prediction but more complex correlation with the clapping amplitude was revealed. As a result, the bivalve propulsion implemented in the current scallop robot is feasible but requires weight reduction and improvement on flow manipulation.falseBiomimetic Scallop RobotBivalve PropulsionHydrodynamic Modeljournal article10.6180/jase.202508_28(8).00202-s2.0-85210940551