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RISUsing CAD Variation Geometry for Solving Velocity and Acceleration of Parallel Manipulators With 3-, 4-, 5-Linearly Driving Limbs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel CAD variation geometric approach is proposed for designing the computer v-a (velocity-acceleration) simulation mechanisms of parallel manipulators with 3-, 4-, 5-linear driving limbs. Some ...
Using CAD Variation Geometry and Analytic Approach for Solving Kinematics of a Novel 3-SPU/3-SPU Parallel Manipulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel 3-SPU/3-SPU parallel manipulator with 3-DOF is presented. The CAD variation geometric approach and analytic approach are used for solving its workspace, position, velocity, and acceleration. ...
Solving Driving Forces of 2(3-SPR) Serial-Parallel Manipulator by CAD Variation Geometry Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel 2(3-SPR) serial-parallel manipulator is proposed. A novel approach for solving driving forces of the 2(3-SPR) parallel manipulator is proposed by using the virtual work theory and the ...
A Unified Approach to Solving Driving Forces in Spatial Parallel Manipulators With Less Than Six DOFs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A unified approach to solving driving forces in spatial parallel manipulators with less than six DOFs is proposed. First, the geometric constrained equations of the parallel manipulators are ...
Unified Solving Jacobian∕Hessian Matrices of Some Parallel Manipulators With n SPS Active Legs and a Passive Constrained Leg
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Some parallel manipulators with n spherical joint-prismatic joint-spherical joint (SPS)-type active legs and a passive constrained leg possess a larger capability of load bearing and are simple ...
Analysis of Stiffness and Elastic Deformation for Some 3–5-DOF PKMs With SP R or RP S-type legs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes an equivalent mechanism approach for establishing the stiffness matrices of some 3–5DOF (degree of freedom) parallel kinematic machines (PKMs) with SP̱R- or RP̱S-type legs and ...
Comparative Study on the Key Issues of Postearthquake Recovery and Reconstruction Planning: Lessons from the United States, Japan, Iran, and China
Publisher: American Society of Civil Engineers
Abstract: Frequent catastrophic earthquakes have highlighted the significance of postearthquake recovery and reconstruction (PERR) planning, a dynamic and inclusive process which encourages the building of more resilient communities. ...
An Analytical Complete Model of Tilting-Pad Journal Bearing Considering Pivot Stiffness and Damping
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Considering the freedom of pad tilting and pad translation along preload orientation, an analytical complete model, as well as mathematical method, which contains 2n+2 degrees of freedom, is ...
Autoderivation of Topological Graphs for Type Synthesis of Planar 3DOF Parallel Mechanisms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The autoderivation of valid topological graph (TGs) of planar 3DOF parallel mechanisms is studied systematically based on topology embryonic graphs (TEGs) and arrays. First, some TEGs without any ...
Derivation of Topological Graphs of Some Planar 4DOF Redundant Closed Mechanisms by Contracted Graphs and Arrays
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Some planar redundantly closed mechanisms (RCMs) have better dexterity, less singular configuration, and higher stiffness. In this paper, the derivation of valid topology graphs (TGs) of some ...