6 accepted papers
Accurate dynamic modeling of soft-shelled spherical robots is challenging due to coupled rigid–soft body interactions and pressure-dependent contact behavior. This letter presents a modeling strategy for an empirically tuned pendulum-driven inflatable spherical robot. The approach combines a rigid-b…
Exploration of extraterrestrial surfaces, such as the lunar surface, can prove treacherous for humans and robots alike, and requires highly specialized mobility platforms to ensure the success of a mission and the safety of any operators. However, these specialized machines may limit the overall sco…
Spherical robots rolling on flat ground often exhibit a wobbling motion that, at higher speeds, can escalate into end-over-end flipping. This paper proposes a fundamental dynamic cause of this instability: a relaxation effect analogous to the Intermediate Axis Theorem. Rotating bodies with oblate in…
Replacing spherical robots' hard shells with soft, pressurized tires has the potential to improve their off-road practicality immensely. This change leverages spherical robots as a simple and rugged solution to problems currently addressed using wheeled or tracked vehicles. Though numerous prototype
Exploration robots are typically equipped with either wheels or legs for mobility. However, these conventional designs inherently possess certain limitations, such as restricted ability to navigate through steep slopes, soft soil or muddy watery terrain. Despite the advancements in robotics technolo…
Spherical robots are a different type of mobility platform. A spherical robot is self-contained within its shell rather than relying on a chassis with wheels to navigate. In this shell, it is completely shielded from dust and the environment. This benefit of geometric simplicity has led to the spher…