Challenge results

Specifications and registry: https://vault1.magland.org/challenges/cymbal.

Challenges

• cymbal-bell-v1: Bowed bronze disk with a bell and a mounting hole, struck with a drum stick, geometrically nonlinear: radiated pressure (4 solutions, reference cymbal-solutions/vonkarman-modal/vk-g4-w300-a300-m2)
• cymbal-bow-v1: Bowed bronze disk (paraboloidal shell) struck with a drum stick, geometrically nonlinear: radiated pressure (4 solutions, reference cymbal-solutions/vonkarman-modal/vk-g4-w300-a300-m2)
• cymbal-flat-disk-v1: Flat bronze disk struck with a drum stick, geometrically nonlinear: radiated pressure (4 solutions, reference cymbal-solutions/vonkarman-modal/vk-g4-w300-a300-m2)
• cymbal-hammered-v1: Bowed bronze disk with a bell, a mounting hole and 150 hammer dents, struck with a drum stick, geometrically nonlinear: radiated pressure (4 solutions, reference cymbal-solutions/vonkarman-modal/vk-g4-w600-a600-m2)
• cymbal-tapered-v1: Bowed, belled and hammered bronze disk lathed to a tapered thickness, struck with a drum stick, geometrically nonlinear: radiated pressure (4 solutions, reference cymbal-solutions/vonkarman-modal/vk-g4-w600-a600-m2)

Registered solution repositories

• challenges/cymbal-solutions (main): Example submissions by the challenge authors: von Karman plate on a Cartesian grid masked to the disk, modal method.