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RISDisplacement Analysis of Spatial Six-Link, 5R-C Mechanisms: A General Solution
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Four angular displacement equations are derived for the spatial 5R-C hexagon from which an input-output equation of 16th degree in the tan-half-angle of the output angular displacement for each ...
Analysis of Two Spherical Parallel Manipulators With Hidden Revolute Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, we examine two spherical parallel manipulators (SPMs) constructed with legs that include planar and spherical subchains that combine to impose constraints equivalent to hidden revolute joints. The first has ...
Three 2-DOF 1T1R and One 3-DOF 2T1R Full-Hinged Novel Parallel Mechanisms With Zero Coupling Degree and Motion Decoupling: Design and Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the design and analysis of a family of full-hinged partially-decoupled novel parallel mechanisms (PMs) featuring one/two translation(s) and one rotation (1T1R/2T1R). First, three 2DOF 1T1R and one 3DOF ...
A New Method for Motion-Decoupling Identification of Parallel Mechanisms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Motion-decoupling identification (MDI) for parallel mechanism (PM) is a significant issue in the analysis and design of PMs. In general, people use the Jacobian matrix method to determine whether a given PM has motion-decoupling ...
Design and Analysis of a New Non-Parasitic Parallel Mechanism for 2T1R Motion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two-limb parallel mechanisms (PMs) can have several advantages, such as avoidance of mechanical collision, fairly simple architecture, easy assembly, and large workspace. The paper presents a novel two-limb three-degree-of-freedom ...
Forcing Mechanisms for Washoe Zephyr—A Daytime Downslope Wind System in the Lee of the Sierra Nevada
Publisher: American Meteorological Society
Abstract: This paper investigates the formation mechanisms for a local wind phenomenon known as Washoe Zephyr that occurs frequently in the lee of the Sierra Nevada. Unlike the typical thermally driven slope flows with upslope wind ...
Climatology of High Wind Events in the Owens Valley, California
Publisher: American Meteorological Society
Abstract: The climatology of high wind events in the Owens Valley, California, a deep valley located just east of the southern Sierra Nevada, is described using data from six automated weather stations distributed along the valley ...
Research Priorities in Observing and Modeling Urban Weather and Climate
Publisher: American Meteorological Society
A Translational Three-Degrees-of-Freedom Parallel Mechanism With Partial Motion Decoupling and Analytic Direct Kinematics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: According to the topological design theory and the method of parallel mechanism (PM) based on position and orientation characteristic (POC) equations, this paper studied a three-degrees-of-freedom (3-DOF) translational PM ...
Observing the Dynamics of Wildland Grass Fires: FireFlux—A Field Validation Experiment
Publisher: American Meteorological Society
Abstract: Grass fires, although not as intense as forest fires, present a major threat to life and property during periods of drought in the Great Plains of the United States. Recently, major wildland grass fires in Texas burned ...