Fastener-centric acquisition and AND/OR graph representation of state-dependent
Overview
This paper proposes a fastener-centric virtual-disassembly framework that acquires state-dependent disassembly operations from CAD-derived virtual assemblies. By grouping fasteners into operation-level sets and evaluating removability through visibility, tool-access checks, and torque-driven trials, the method organizes knowledge into a Transformed AND/OR Graph. Exhaustive verification on a toy assembly found no branching violations, while evaluation with a 54-component OpenManipulator Chain gripper demonstrated effective pruning of candidate evaluations (51.4%) and enabled previously inaccessible operations. The results support acquiring product-specific disassembly knowledge before manufacture for design-for-disassembly evaluation.
Generated from attributed reports · Updated 5 hours ago
Event evidence and corrections
0 attributed source owners. Ownership does not establish independent confirmation. Quantities are reported separately and are never added together.
Reported quantity · component count: 54 other · Basis not reported
“nd physics-based validation. The acquired operations, states, dependencies, validated paths, and simulation-derived attributes are organized into a Transformed AND/OR Graph for subsequent planning and design evaluation. Exhaustive verification with a controlled toy assembly found no branching violations for introduced tool-accessibility and precedence conditions. Evaluation with a 54-component OpenManipulator Chain g”
Exact source · revision 1Source owner not reported
Report timeline
Follow attributed reports and material updates.
- arXiv Robotics — research abstractsSignalFastener-centric acquisition and AND/OR graph representation of state-dependent disassembly knowledge from CAD-derived virtual assemblies
This paper proposes a fastener-centric virtual-disassembly framework that acquires state-dependent disassembly operations from CAD-derived virtual assemblies. By grouping fasteners into operation-level sets and evaluating removability through visibility, tool-access checks, and torque-driven trials, the method organizes knowledge into a Transformed AND/OR Graph. Exhaustive verification on a toy assembly found no branching violations, while evaluation with a 54-component OpenManipulator Chain gripper demonstrated effective pruning of candidate evaluations (51.4%) and enabled previously inaccessible operations. The results support acquiring product-specific disassembly knowledge before manufacture for design-for-disassembly evaluation.
Event coverage history
There is not enough continuous observation data to show a trend.
Timezone · UTC
Article dates follow your selected timezone. Briefing editions use Hong Kong time (UTC+8).