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RISVariable Degree-of-Freedom Spatial Mechanisms Composed of Four Circular Translation Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper deals with the construction and reconfiguration analysis of a spatial mechanism composed of four circular translation (G) joints. Two links connected by a G joint, which can be in different forms such as a planar ...
Classification of a 3-RER Parallel Manipulator Based on the Type and Number of Operation Modes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The type/number of operation modes of a parallel manipulator (PM) may vary with the link parameters of the PM. This paper presents a systematic classification of a 3-RER PM based on the type/number of operation modes. Here, ...
Quantifying Residual Resistance of Light Pipelines during Large-Amplitude Lateral Displacement Using Sequential Limit Analysis
Publisher: ASCE
Abstract: The design of on-bottom pipelines regarding thermally induced lateral buckling requires a comprehensive understanding of large deformation lateral pipe–soil interactions to ensure that lateral buckles form as planned. This ...
Rising to the Climate Challenge: Better Understanding the Rural Rainstorm Flooding Disaster Risk Management Using Practical Insights from China
Publisher: ASCE
Abstract: In light of the challenges posed by climate change and rural revitalization, high-quality construction in rural areas is facing significant obstacles from rainstorm flooding. This study adopts a regional disaster system ...
Type Synthesis of Single Loop Overconstrained 6R Spatial Mechanisms for Circular Translation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To discover singledegreeoffreedom (DOF) singleloop overconstrained mechanisms is still an open problem. This paper deals with the type synthesis of single DOF singleloop overconstrained 6RMCTs (6R spatial mechanisms for ...
Type Synthesis of 3 DOF Parallel Manipulators With Both a Planar Operation Mode and a Spatial Translational Operation Mode1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Type synthesis of multimode parallel manipulators (PMs) (also parallel manipulators with multiple operation modes) is an open issue in the research on reconfigurable mechanisms and robots. This paper deals with the type ...
Forward Displacement Analysis and Singularity Analysis of a Special 2-DOF 5R Spherical Parallel Manipulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper deals with the forward displacement analysis and singularity analysis of a special 2-DOF 5R spherical parallel manipulator, in which the angle between the axes of any two adjacent ...
Reconfiguration Analysis of Multimode Single-Loop Spatial Mechanisms Using Dual Quaternions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Although kinematic analysis of conventional mechanisms is a well-documented fundamental issue in mechanisms and robotics, the emerging reconfigurable mechanisms and robots pose new challenges in kinematics. One of the ...
Classification of 3-Degree-of-Freedom 3-UPU Translational Parallel Mechanisms Based on Constraint Singularity Loci Using Gröbner Cover
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A 3-degree-of-freedom (DOF) 3-UPU translational parallel mechanism (TPM) is one of the typical TPMs. Despite comprehensive studies on 3-UPU TPMs in which the joint axes on the base and the moving platform are coplanar, ...
A Study on the Psychological and Emotional Self-Adjustment Ability of Students Under the Pressure of Academic Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. In this study, taking freshmen students as the subject, data were collected using a questionnaire survey. An academic performance stress scale was designed. The students' psychological and emotional self-adjustment ...