Home▸Space & Astronomy▸Momentum-Neutral Grasp of a Free-Floating Object

Momentum-Neutral Grasp Simulator

Capture a free-floating tumbling object in microgravity: match its drift velocity and spin, then close a symmetric gripper. Mismatched approach velocity or asymmetric grip closure knocks the object away instead of capturing it.

Space & Astronomy3DAdvanced60 FPS

Details

CategorySpace & Astronomy

RenderingThree.js · WebGL

DifficultyAdvanced

Target FPS60

ControlsSliders for velocity-matching quality and grip closure symmetry; Attempt Capture button; New Tumble button to randomize the object; Auto-Repeat toggle for continuous trials; Reset stats button. A live status readout and a quality x symmetry tally grid track capture outcomes across attempts.

Space RoboticsMicrogravity GraspingMomentum ConservationContact DynamicsThree.js

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Grabbing a small free-floating object in microgravity is a contact-dynamics problem, not a positioning problem: the object has no friction or gravity holding it in place, so any mismatch between the gripper's velocity and the object's drift, or any asymmetry in how the fingers close, injects unwanted momentum and sends it tumbling away uncaptured. This simulator lets you tune how well the arm matches the object's relative velocity and spin before contact, and how symmetrically the gripper closes, then run repeated capture attempts against a randomly tumbling target to see how those two factors determine capture success.

⚙ Under the hood

Grab a small, slowly tumbling free-floating object in microgravity with a robotic gripper. Tune how well the arm matches the object's drift velocity and spin before contact, and how symmetrically the two fingers close, then run repeated attempts to see whether a mismatched or asymmetric grasp knocks the object away instead of capturing it.

Space RoboticsMicrogravity GraspingMomentum ConservationContact DynamicsThree.js

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install