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RISComputation of Rigid-Body Angular Acceleration From Point-Acceleration Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The computation of the angular acceleration of a rigid body from measurements of accelerations of three noncollinear points of the body is presented in this paper. This is based on algorithms ...
Automatic Computation of the Screw Parameters of Rigid-Body Motions. Part II: Infinitesimally-Separated Positions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper follows a previous one on the computation of the screw parameters of rigid-body motions defined by two finitely-separated positions. The subject of the present paper is the computation ...
Automatic Computation of the Screw Parameters of Rigid-Body Motions. Part I: Finitely-Separated Positions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Introduced in this paper is a novel approach that leads to efficient algorithms for computing the screw parameters of rigid-body motions. This is based on invariants associated with the said ...
The Qualitative Synthesis of Parallel Manipulators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: As shown in this paper, when designing parallel manipulators for tasks involving less than six degrees of freedom, the topology can be laid out by resorting to qualitative reasoning. More ...
Virtual-Power Flow and Mechanical Gear-Mesh Power Losses of Epicyclic Gear Trains
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The concept of virtual power is first defined as the power measured, in a noninertial frame, in an epicyclic gear train. We then introduce the concept of virtual-power ratio, an invariant ...
Linear Estimation of the Rigid-Body Acceleration Field From Point-Acceleration Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Among other applications, accelerometer arrays have been used extensively in crashworthiness to measure the acceleration field of the head of a dummy subjected to impact. As it turns out, most ...
A Robust Solution of the Spatial Burmester Problem
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The spatial Burmester problem is studied in this work, focusing on the synthesis of CCCC and RCCC linkages for rigid-body guidance, where R stands for revolute, C for cylindrical pair. The ...
Angular Velocity Estimation From the Angular Acceleration Matrix
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Computing the angular velocity ω from the angular acceleration matrix is a nonlinear problem that arises when one wants to estimate the three-dimensional angular velocity of a rigid-body from ...
Algorithms for Involute and Octoidal Bevel-Gear Generation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A suitable formulation and the implementing algorithms for involute and octoidal bevel-gear generation are proposed in this paper. In particular, the exact spherical involute tooth profile of ...
Synthesis of the Base Curves For N-Lobed Elliptical Gears
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Motivated by the need to synthesize the tooth profiles of noncircular gears, we approach the synthesis of the tooth profile of circular spur gears using their pitch circle, rather than their ...