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RISStructure Decomposition and Homomorphism Identification of Planar Variable Topology Mechanisms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Structural analysis of variable topology mechanisms (VTMs) is the leading task when studying the topological variability of mechanisms. Of several major concerns, structure decomposition and homomorphism identification are ...
Design of a Novel Statically Balanced Mechanism for Laparoscope Holders With Decoupled Positioning and Orientating Manipulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a novel mechanism concept of laparoscope holders used for minimally invasive surgery (MIS). The mechanism is made of a parallelogram linkage and a parallel mechanism, which, respectively, serve as a ...
Flow and Solute Transport in Strongly Heterogeneous Porous Media
Publisher: American Society of Civil Engineers
Abstract: The stochastic analysis of flow and solute transport provides the required probabilistic information for the risk assessment of hazard and radioactive waste management. Only low-order approximations of the velocity covariance ...
On the Minimum Phase Property of Mass-Dashpot-Spring Sampled Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In literature, it is shown by Åström et al. that a sampled system may become nonminimum phase for sufficiently fast sampling, even though the continuous-time system is minimum phase. ...
A Single-Degree-of-Freedom Self-Regulated Gravity Balancer for Adjustable Payload1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a single-degree-of-freedom (single-DoF) gravity balancer that can deal with variable payload without requesting manual or other auxiliary adjustment. The proposed design is an integration of two mechanism ...
A Diagnostic Case Study of a Winter Low-Level Front over Southern China
Publisher: American Meteorological Society
Abstract: A diagnostic case study was carried out for a lower-tropospheric front over southern China in association with lee cyclogenesis over the Yun-Guei Plateau (23°?29°N, 102°?110°E) during the period of 25?27 December 1991. The ...
Innovative Design of an Automatic Acupoint Catgut-Embedding Instrument
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Acupoint catgut-embedding (ACE) therapy is a type of acupuncture surgery that combines concepts of traditional Chinese medicine with modern medical instruments. The therapy involves using a hypodermic needle and an acupuncture ...
Reliability-Based Analysis and Optimization of the Gravity Balancing Performance of Spring-Articulated Serial Robots With Uncertainties
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article proposes a method for analyzing the gravity balancing reliability of spring-articulated serial robots with uncertainties. Gravity balancing reliability is defined as the probability that the torque reduction ...
Structure Synthesis of a Class of Parallel Manipulators With Fully Decoupled Projective Motion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes the structure synthesis of a special class of parallel manipulators with fully decoupled motion, that is, a one-to-one correspondence between the instantaneous motion space of the end-effector and the ...
Estimating Poromechanical Properties Using a Nonlinear Poroelastic Model
Publisher: American Society of Civil Engineers
Abstract: A physics-based method is proposed for simultaneously obtaining the hydraulic conductivity, Young’s modulus, and Poisson’s ratio of soil materials using the uniaxial consolidation test. A nonlinear poroelastic model is ...