Relevant bibliographies by topics / Axes of motion

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Axes of motion'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Axes of motion"

1

Nishiguchi, Tadahiro, Shogo Hasegawa, Ryuta Sato, and Keiichi Shirase. "Evaluation Method for Behavior of Rotary Axis Around Motion Direction Changing." International Journal of Automation Technology 11, no. 2 (March 1, 2017): 171–78. http://dx.doi.org/10.20965/ijat.2017.p0171.

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Several methods for evaluating the motion accuracy of the rotary axes in five-axis machining centers have been proposed till date. As it is known that particular motion errors exist around the motion direction changing points, it is important to evaluate the behavior of the rotary axes around these points. However, the influence of the motion error in the translational axes is included in the conventional evaluation results, as the translational axes reverse at the motion direction changing points about the rotary axes. In this study, an evaluation method which can assess the behavior of a rotary axis around motion direction changes by synchronous motion of translational and rotary axes is proposed. In this method, the direction of translational axes does not change when the motion direction of a rotary axis changes. A measurement test and actual cutting tests are carried out to clarify the influence of the behaviors of rotary axes on the motion trajectory and machined surface, caused by the change in the motion direction of the rotary axis. Simulations of the motion are also carried out to discuss the causes of inaccuracy.
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Shi, Zhaoyao, Huixu Song, Hongfang Chen, and Yanqiang Sun. "Research on Measurement Accuracy of Laser Tracking System Based on Spherical Mirror with Rotation Errors of Gimbal Mount Axes." Measurement Science Review 18, no. 1 (February 1, 2018): 13–19. http://dx.doi.org/10.1515/msr-2018-0003.

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Abstract This paper presents a novel experimental approach for confirming that spherical mirror of a laser tracking system can reduce the influences of rotation errors of gimbal mount axes on the measurement accuracy. By simplifying the optical system model of laser tracking system based on spherical mirror, we can easily extract the laser ranging measurement error caused by rotation errors of gimbal mount axes with the positions of spherical mirror, biconvex lens, cat’s eye reflector, and measuring beam. The motions of polarization beam splitter and biconvex lens along the optical axis and vertical direction of optical axis are driven by error motions of gimbal mount axes. In order to simplify the experimental process, the motion of biconvex lens is substituted by the motion of spherical mirror according to the principle of relative motion. The laser ranging measurement error caused by the rotation errors of gimbal mount axes could be recorded in the readings of laser interferometer. The experimental results showed that the laser ranging measurement error caused by rotation errors was less than 0.1 μm if radial error motion and axial error motion were within ±10 μm. The experimental method simplified the experimental procedure and the spherical mirror could reduce the influences of rotation errors of gimbal mount axes on the measurement accuracy of the laser tracking system.
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Lewis, Gregory S., H. J. Sommer, and Stephen J. Piazza. "In Vitro Assessment of a Motion-Based Optimization Method for Locating the Talocrural and Subtalar Joint Axes." Journal of Biomechanical Engineering 128, no. 4 (January 17, 2006): 596–603. http://dx.doi.org/10.1115/1.2205866.

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The locations of the joint axes of the ankle complex vary considerably between subjects, yet no noninvasive method with demonstrated accuracy exists for locating these axes. The moments of muscle and ground reaction forces about the joint axes are dependent on axis locations, making knowledge of these locations critical to accurate musculoskeletal modeling of the foot and ankle. The accuracy of a computational optimization method that fits a two-revolute model to measured motion was assessed using computer-generated data, a two-revolute mechanical linkage, and three lower-leg cadaver specimens. Motions were applied to cadaver specimens under axial load while bone-mounted markers attached to the tibia, talus, and calcaneus were tracked using a video-based motion analysis system. Estimates of the talocrural and subtalar axis locations were computed from motions of the calcaneus relative to the tibia using the optimization method. These axes were compared to mean helical axes computed directly from tibia, talus, and calcaneus motions. The optimization method performed well when the motions were computer-generated or measured in the mechanical linkage, with angular differences between optimization and mean helical axes ranging from 1deg to 5deg. In the cadaver specimens, however, these differences exceeded 20deg. Optimization methods that locate the anatomical joint axes of the ankle complex by fitting two revolute joints to measured tibia-calcaneus motions may be limited because of problems arising from non-revolute behavior.
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Hodge, S. J., P. Perfect, G. D. Padfield, and M. D. White. "Optimising the roll-sway motion cues available from a short stroke hexapod motion platform." Aeronautical Journal 119, no. 1211 (January 2015): 23–44. http://dx.doi.org/10.1017/s000192400001023x.

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AbstractThis paper presents findings from research conducted at the University of Liverpool aimed at optimising the motion cues available from a short-stroke hexapod motion platform. Piloted simulations were conducted for a typical helicopter low-speed sidestep manoeuvre. To correctly simulate the sidestep manoeuvre the motion platform must translate laterally at the same time as it rolls. If the motion in these two axes is not properly harmonised then the pilot can experience significant false motion cues. This is a particular concern for short-stroke hexapod platforms, where displacement limits can severely constrain the available lateral travel particularly during motion in multiple axes (e.g. roll and sway). During the experiment the motion filter gains in the roll and sway axes and the roll-axis motion filter break-frequency were varied. Objective and subjective measures of pilot performance and motion fidelity were gathered for each motion filter configuration, the latter using a new motion fidelity rating scale. The key findings show that acceptable motion cues could only be achieved by careful harmonisation of the motion filter gains in the roll and sway axes. A high gain in the roll axis coupled with a low gain in the sway axis resulted in motion which was abrupt and uncomfortable. On the other hand, too large a gain in the sway axis resulted in extreme lateral displacements of the motion platform leading to undesirable side-effects. The phase distortion between the visual and platform motion cues, introduced by the roll-axis motion filter, also had a significant impact on the pilot’s perception of motion fidelity. These results are presented in the form of proposed motion fidelity criteria for short-stroke hexapod platforms and compared with results from previous research conducted on a range of large motion systems.
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Şentürk, Gülsüm Yeliz, and Salim Yüce. "A Geometric Aspect of the Two-Parameter Planar Lorentzian Motions." Mathematical Problems in Engineering 2018 (September 19, 2018): 1–11. http://dx.doi.org/10.1155/2018/7021310.

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We examined the moving coordinate systems, the polar axes, the density invariance of the polar axis transformation, and the curve plotter points and the support function of the two-parameter planar Lorentzian motion. Furthermore, we were concerned with the determination of the motion using the polar axes and analyzed the motion when the density of the polar axes is zero.
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HAYES, M. J. D., and R. G. LANGLOIS. "ATLAS: A NOVEL KINEMATIC ARCHITECTURE FOR SIX DOF MOTION PLATFORMS." Transactions of the Canadian Society for Mechanical Engineering 29, no. 4 (December 2005): 701–9. http://dx.doi.org/10.1139/tcsme-2005-0047.

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Conventional training simulators commonly use the hexapod configuration to provide motion cues. While widely used, studies have shown that hexapods are incapable of producing the range of motion required to achieve high fidelity simulation required in many applications. This paper presents an overview of the Atlas platform: a novel six DOF motion platform architecture. Orienting is decoupled from positioning, and unlimited rotations are possible about every axis of the mechanism. The decoupling is accomplished by fixing a three DOF spherical orienting device, called the Atlas sphere, on a gantry with three linear axes. The key to the design is three omni-directional wheels in an equilateral arrangement, which impart angular motions to a sphere, thereby providing rotational actuation. The omni-wheels and their castor rollers provide virtually friction-free motion parallel to each omni-wheel rotation axis creating the possibility for unconstrained rotational motion. Since the Atlas sphere rests on these omni-wheels, there are no joints or levers constraining its motion, allowing full 360° motion about all axes. The motivation, architecture, and potential applications for this motion platform are described.
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Sato, Ryuta, and Masaomi Tsutsumi. "High Performance Motion Control of Rotary Table for 5-Axis Machining Centers." International Journal of Automation Technology 1, no. 2 (November 5, 2007): 113–19. http://dx.doi.org/10.20965/ijat.2007.p0113.

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We discuss motion control techniques of rotary tables for 5-axis machining centers. Three translational axes and two rotary ones are controlled simultaneously in the machining of complex shapes such as impellers. A tilting rotary table powered by a worm gear is generally used as the rotary axes for 5-axis machining centers, and various causes of inaccuracy exist in the rotary axes. In this study, we clarified three causes of inaccuracy exists in the rotary axis: rotational fluctuation in the worm gear, backlash, and measurement delay of rotary encoder for feedback. Motor torque saturation of the rotary axis also causes a problem when rotational velocity is changed rapidly. Based upon investigated results, we propose compensators for improving synchronous accuracy. We avoid torque saturation in the rotary axis through acceleration-deceleration design. To verify the effectiveness of the proposed compensators, we applied them to an experimental set-up including a rotary axis. As the results of experiments, it is clarified that the proposed compensators improve the synchronous accuracy of translational and rotary axes.
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Tomizuka, Masayoshi, Jwu-Sheng Hu, Tsu-Chih Chiu, and Takuya Kamano. "Synchronization of Two Motion Control Axes Under Adaptive Feedforward Control." Journal of Dynamic Systems, Measurement, and Control 114, no. 2 (June 1, 1992): 196–203. http://dx.doi.org/10.1115/1.2896515.

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In this paper, motion synchronization of two d-c motors, or motion control axes, under adaptive feedforward control is considered. The adaptive feedforward control system for each axis consists of a proportional feedback controller, an adaptive disturbance compensator and an adaptive feedforward controller. If the two adaptive systems are left uncoupled, a disturbance input applied to one of the two axes will cause a motion error in the disturbed axis only, and the error becomes the synchronization error. To achieve a better synchronization, a coupling controller, which responds to the synchronization error, i.e., the difference between the two motion errors, is introduced. In this case, when a disturbance input is applied to one axis, the motion errors appear in the undisturbed axis as well as in the disturbed axis. The motion error in the undisturbed axis is introduced by the coupling controller and the adaptive feedforward controller. The adaptive synchronization problem is formulated and analyzed in the continuous time domain first, and then in the discrete time domain. Stability conditions are obtained. Effectiveness of the adaptive synchronization controller is demonstrated by simulation.
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Wu, Wei, Toshiki Hirogaki, and Eiichi Aoyama. "Proposal of Improving Method of Rotational 2-Axis Synchronous Accuracy of Plate Motion Control with a Dual Arm Robot by Estimating Ball Rolling Motion on the Plate." Key Engineering Materials 523-524 (November 2012): 889–94. http://dx.doi.org/10.4028/www.scientific.net/kem.523-524.889.

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Recently, developers of machining tools have begun paying more and more attention to multi-joint dual-arm robot, and it is expected the robot will reclaim its place in the field of new automation. Industrial dual-arm robots have therefore gained attention as new tools to control both linear motion and rotational motion accurately. On the other hand, the five-axis control machining center controlling the motion of three translation axes and two rotation axes has put into wide practical use. However, a one problem has been that it may be the difficult to measure the synchronic accuracy of rotation two axes without high accuracy gyro sensor. In the present report, we proposed a novel method to measure the synchronic accuracy of rotation two axes of machine tool table with a ball, which keeps a ball rolling around a circular path on the working plate by dual-arm cooperating control. As a result, we investigated an influence of each axis motion error on a ball- rolling path, and demonstrated this method made it feasible to estimate the synchronic accuracy of rotation two axes of machine tool table.
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Stewart, Jonathan P., Norman A. Abrahamson, Gail M. Atkinson, Jack W. Baker, David M. Boore, Yousef Bozorgnia, Kenneth W. Campbell, et al. "Representation of Bidirectional Ground Motions for Design Spectra in Building Codes." Earthquake Spectra 27, no. 3 (August 2011): 927–37. http://dx.doi.org/10.1193/1.3608001.

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The 2009 NEHRP Provisions modified the definition of horizontal ground motion from the geometric mean of spectral accelerations for two components to the peak response of a single lumped mass oscillator regardless of direction. These maximum-direction (MD) ground motions operate under the assumption that the dynamic properties of the structure (e.g., stiffness, strength) are identical in all directions. This assumption may be true for some in-plan symmetric structures, however, the response of most structures is dominated by modes of vibration along specific axes (e.g., longitudinal and transverse axes in a building), and often the dynamic properties (especially stiffness) along those axes are distinct. In order to achieve structural designs consistent with the collapse risk level given in the NEHRP documents, we argue that design spectra should be compatible with expected levels of ground motion along those principal response axes. The use of MD ground motions effectively assumes that the azimuth of maximum ground motion coincides with the directions of principal structural response. Because this is unlikely, design ground motions have lower probability of occurrence than intended, with significant societal costs. We recommend adjustments to make design ground motions compatible with target risk levels.
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Dissertations / Theses on the topic "Axes of motion"

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McGrath, Timothy M. (Timothy Michael). "Influence of motion profile on estimating anatomical elbow joint axes using inertial measurement units." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112472.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 166-170).
Current human motion measurement systems using inertial measurement units (IMUs) typically rely on precise alignment, static calibration poses, or dynamic calibration motions. Muller et al. recently proposed a method for online calibration of the human elbow anatomical joint axes via decomposition of angular velocity measurements. This thesis evaluated this calibration-free method in the context of two motion types. First, the method is evaluated with human-generated motions common to occupational rehabilitation, to investigate activities of daily living (ADLs) as online calibration motions. Second, the method is evaluated with parameterized sinusoidal motion, to investigate amplitudes and frequencies of motions that yield robust axis estimations. It was found for the axis of interest, high on-axis motion and low off-axis motion lead to precise axis estimation and high accuracy estimation of the pronation/supination elbow axis. Further, high off-axis motion and low on-axis motion yielded imprecise axis estimation and inaccurate estimation of both the flexion/extension and pronation/supination elbow axes. A comparative study of different filtering methodologies to the estimation of upper extremity human motion was also performed. Compared to a motion capture truth, the Extended Kalman Filter (EKF) and Unscented Kalman Filter (UKF) were found to perform similarly. An implemented particle filter (PF) was found to perform better than both the EKF and UKF, and on the order of accuracy of a manufacturers black-box algorithm. This work is the first to evaluate a particle filter in the estimation of human motion by inertial sensors. The particle filter was then subject to a sensitivity analysis of the error of its estimated 3D orientation to its underlying algorithm inputs, namely, the accelerometer and magnetometer uncertainties, and number of particles. Recommended operational levels for these parameters are reported. Future work will combine the Muller auto-calibration method, robust IMU orientation filters, and knowledge of appropriate online motions to develop an IMU bias correction method for long periods of measurement.
by Timothy M. McGrath.
S.M.
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Basar, Feza. "Development Of A 3 Axes Pc Numerical Control System For Industrial Applications." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1022565/index.pdf.

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In this study, a three-axes PC numerical control system for industrial applications has been developed. With this system, fast and cheap prototyping of designed objects can be realized. The system consists of software and a hardware which includes an XYZ positioning table and three step motors controlling this table. A proper drive circuit for the stepper motors is utilized. The software digitizes two dimensional drawings of three dimensional objects and generates the control signals for the XYZ positioning table. The software is developed under Microsoft Studio Visual Basic 6.0 environment regardless of the OS of the PC. The parallel port of the PC has been utilized for generating the necessary control signals for the stepper motors.
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Yazicioglu, Faruk. "Design And Implementation Of A Two-axes Linear Positioning System For Rapid Prototyping Applications." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608835/index.pdf.

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In this study, a two axes linear positioning system for testing and applying different rapid prototyping techniques was designed and manufactured. A cable/ pulley mechanism is utilized in the system for transmitting motion from motors into linear motion. Use of a cable/ pulley mechanism overcomes the problems resulting from the utilization of conventional drive systems like ball screws and decreases the overall cost of the system. The carriage elements of both axes were designed and manufactured by using investment casting. The molds used in casting were also designed and manufactured within this study. The designed system is controlled by a servo motion control system composed of a motion controller, DC servo motors and linear encoders. All elements of the motion control system were selected, integrated and programmed within the scope of the study.
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Hlobil, Jaroslav. "Multifunkční obráběcí centrum pro rotační i nerotační obrobky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-379008.

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The content of this master’s thesis is the choice of a suitable concept for the multifunctional machining center for rotary and non-rotating workpieces and design and processing of one structural node of this machine. The structure of the work is divided into three parts. In the first part, the market analysis is carried out from which it follows to the second part and it is the choice of a suitable machine concept. The third part deals with its own design of the constructional structure of this machining center.
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Tatíček, Jiří. "Návrh vřeteníku odhrotovacího stroje." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232058.

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The aim of this thesis is design of deburring machine, focusing on the headstock, capable of aligning the front side and chamfering at the round bars. At the beginning is a short research design nodes, used in the construction of machine tools. As part of the work was done and the measurement of cutting forces to determine the load while standing. Work also includes a series of calculations to justify the use of selected components. The outcome of the work is also a 3D model.
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Carranca, Ricardo Luís d'Abreu Fernandes. "3D motion control with axis interpolation." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10103.

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Mestrado em Engenharia Mecânica
Há alguns anos que a automação e controlo entraram no mundo do entretenimento. A evidenciar este facto, tem-se assistido nos últimos anos a um aumento de soluções e inovações nesta área. Tal desafio resulta em grande parte, da exigência dos espetadores, com uma cada vez maior componente emocional, que deriva da transposição para a indústria do espetáculo, de façanhas extraordinárias, por exemplo com personagens importados do universo de heróis da banda desenhada. Este campo de criatividade, com efeitos visuais, tem aplicações no teatro, cinema ou concertos. A par destes desenvolvimentos, tem surgido a necessidade de evolução de equipamentos para simulação de vôos/saltos. Por este motivo, é objetivo desta dissertação estudar uma solução a nível de sistemas de controlo - software e hardware - capaz de satisfazer as necessidades dum sistema deste tipo. Para o sucesso de um projecto desta natureza é fundamental o controlo perfeito de movimentos e trajectórias complexas. O trabalho aqui desenvolvido centrou-se nestas temáticas, em especial, no desenvolvimento de um sistema de controlo capaz de simular cenas de vôo a três dimensões, com aplicabilidade na indústria do entretenimento.
Since a few years ago, automation and control became an important tool in the simulation of visual effects as part of the entertainment industry. In fact, in the last few years the number of solutions in this highly creative field has increased. A challenging vector for this arises from the spectators’ exigency, expecting to meet a quite high emotional experience rank when assisting for example to the performance of actors recreating the heroes of comics stories or even the incarnation of cartoons performers. Among these developments there is the need of upgrading the flying simulators. So, the aim of this dissertation is to study a control solution - software and hardware - capable of meeting the needs that a system like this requires. The very realistic materialization of complex trajectories with perfect motion control is a field of primary importance for the success of the project, therefore that thematic has been explored and developed. The work here developed focused on these issues, particularly in developing a control system capable of simulating flight scenes in three dimensions, with application in the entertainment industry.
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Erdem, Sezen. "Human Motion Analysis Via Axis Based Representations." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608815/index.pdf.

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Visual analysis of human motion is one of the active research areas in computer vision. The trend shifts from computing motion fields to understanding actions. In this thesis, an action coding scheme based on trajectories of the features calculated with respect to a part based coordinate system is presented. The part based coordinate system is formed using an axis based representation. The features are extracted from images segmented in the form of silhouettes. We present some preliminary experiments that demonstrate the potential of the method in action similarity analysis.
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Fleisig, Robert V. "Motion command generation for multi-axis machining /." *McMaster only, 2000.

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Parks, Steven A. "Instantaneous axis of rotation for continuous human knee motion." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA333396.

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Thesis (M.S. in Mechanical Engineering and Mechanical Engineer) Naval Postgraduate School, June 1997.
Thesis advisor, Young W. Kwon. Includes bibliographical references (p. 117-118). Also available online.
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Chen, Changmin. "Motion control and synchronisation of multi-axis drive systems." Thesis, Loughborough University, 1994. https://dspace.lboro.ac.uk/2134/7360.

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Books on the topic "Axes of motion"

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Samji, Al-Amyn. Motion perception studies for the roll and yaw axes with the pilot in the loop. [Downsview, Ont.]: University of Toronto, Department of Aerospace Science and Engineering, 1990.

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Samji, Al-Amyn. Motion perception studies for the roll and yaw axes with the pilot in the loop. Ottawa: National Library of Canada, 1990.

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Parks, Steven A. Instantaneous axis of rotation for continuous human knee motion. Monterey, Calif: Naval Postgraduate School, 1997.

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Pelant, Jaroslav. Solution of Euler equations for three-dimensional flow in the axis-symmetrical channel. Praha: Aeronautical Research and Test Institute, 1995.

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Szely, Sylvia. Heimat/Bilder: Lektüre dreier österreichischer Romane und Filme aus den siebziger und achtziger Jahren : "Schöne Tage" (Franz Innerhofer-Fritz Lehner), "Herrenjahre" (Gernot Wolfgruber-Axel Corti), "Der Stille Ozean" (Gerhard Roth-Xaver Schwarzenberger). Wien: Edition Praesens, 1998.

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United States International Trade Commission. Light-duty integrated hydrostatic transmissions and subassemblies thereof, with or without attached axles, from Japan: Determination of the Commission in investigation no. 731-TA-425 (preliminary) under the Tariff Act of 1930, together with the information obtained in the investigation. Washington, DC: U.S. International Trade Commission, 1989.

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United States International Trade Commission. Light-duty integrated hydrostatic transmissions and subassemblies thereof, with or without attached axles, from Japan: Determination of the Commission in investigation no. 731-TA-425 (preliminary) under the Tariff Act of 1930, together with the information obtained in the investigation. Washington, DC: U.S. International Trade Commission, 1989.

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United States International Trade Commission. Light-duty integrated hydrostatic transmissions and subassemblies thereof, with or without attached axles, from Japan: Determination of the Commission in investigation no. 731-TA-425 (preliminary) under the Tariff Act of 1930, together with the information obtained in the investigation. Washington, DC: U.S. International Trade Commission, 1989.

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United States International Trade Commission. Light-duty integrated hydrostatic transmissions and subassemblies thereof, with or without attached axles, from Japan: Determination of the Commission in investigation no. 731-TA-425 (preliminary) under the Tariff Act of 1930, together with the information obtained in the investigation. Washington, DC: U.S. International Trade Commission, 1989.

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United States International Trade Commission. Light-duty integrated hydrostatic transmissions and subassemblies thereof, with or without attached axles, from Japan: Determination of the Commission in investigation no. 731-TA-425 (preliminary) under the Tariff Act of 1930, together with the information obtained in the investigation. Washington, DC: U.S. International Trade Commission, 1989.

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Book chapters on the topic "Axes of motion"

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Dyke, Phil. "Circular Motion and Rotating Axes." In Mechanics, 93–109. London: Macmillan Education UK, 1995. http://dx.doi.org/10.1007/978-1-349-13074-0_7.

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Van den Braembussche, Pieter, Jan Swevers, Hendrik Van Brussel, and Paul Vanherck. "Motion control and identification techniques for machine tool axes." In Proceedings of the Third Conference on Mechatronics and Robotics, 132–44. Wiesbaden: Vieweg+Teubner Verlag, 1995. http://dx.doi.org/10.1007/978-3-322-91170-4_10.

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Wu, Yu, Delun Wang, Zhi Wang, Huimin Dong, and Shudong Yu. "The Kinematic Invariants in Testing Error Motion of Machine Tool Linear Axes." In Lecture Notes in Electrical Engineering, 1525–40. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2875-5_121.

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Poparad, Hariton. "Study of the Motion of Random Axes Using the Coupling with Curved Plate Springs." In The 11th IFToMM International Symposium on Science of Mechanisms and Machines, 443–51. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01845-4_44.

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Quan, JianZhou, Yuhui Wang, and ZhouPing Yin. "Design and Implement of Synchronizing Dual-Drive Gantry Based on Multi-axes Motion Control Card." In Intelligent Robotics and Applications, 388–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-88518-4_42.

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Xu, Yundou, Liangliang Chen, Wennan Yan, Jiantao Yao, and Yongsheng Zhao. "Motion Decoupling Analysis of a Kind of 2R Parallel Mechanism with Two Continuous Rotational Axes." In Advances in Reconfigurable Mechanisms and Robots II, 307–13. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23327-7_27.

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Wu, Hao, Ming Lu, XinJie Zhou, and Philip F. Yuan. "Application of 6-Dof Robot Motion Planning in Fabrication." In Proceedings of the 2021 DigitalFUTURES, 340–48. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5983-6_31.

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AbstractIn practical robotic construction work, such as laying bricks and painting walls, obstructing objects are encountered and motion planning needs to be done to prevent collisions. This paper first introduces the background and results of existing work on motion planning and describes two of the most mainstream methods, the potential field method, and the sampling-based method. How to use the probabilistic route approach for motion planning on a 6-axis robot is presented. An example of a real bricklaying job is presented to show how to obtain point clouds and increase the speed of computation by customizing collision and ignore calculations. Several methods of smoothing paths are presented and the paths are re-detected to ensure the validity of the paths. Finally, the flow of the whole work is presented and some possible directions for future work are suggested. The significance of this paper is to confirm that a relatively fast motion planning can be achieved by an improved algorithmic process in grasshopper.
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Chang, Kang-Ming, Sih-Huei Chen, and Chun-Lung Huang. "Tri-axis Accelerometer-Based Body Motion Detection System." In Intelligent Technologies and Engineering Systems, 147–51. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6747-2_18.

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Bénédet, Vincent, and Dominique Faudot. "An Alternative to Medial Axis for the 3D Reconstruction of Unorganized Set of Points Using Implicit Surfaces." In Articulated Motion and Deformable Objects, 444–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11789239_46.

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Luo, Guo, Siwen Zhang, Limin Pan, Cuijing Lu, Hui Li, Xiaofen Liang, and Peiyi Qiu. "Motion Control of Four-Axis Aircraft Based on LabVIEW." In Advances in Intelligent Systems and Computing, 663–67. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43309-3_97.

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Conference papers on the topic "Axes of motion"

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Mancini, Dario, and Pietro Schipani. "TNG rotator axes motion control." In SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, edited by Eddy A. Derby, Colin G. Gordon, Daniel Vukobratovich, Paul R. Yoder, Jr., and Carl H. Zweben. SPIE, 1999. http://dx.doi.org/10.1117/12.363816.

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Mancini, Dario, and Pietro Schipani. "TNG main axes motion control progress report." In SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, edited by Eddy A. Derby, Colin G. Gordon, Daniel Vukobratovich, Paul R. Yoder, Jr., and Carl H. Zweben. SPIE, 1999. http://dx.doi.org/10.1117/12.363815.

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Lee, Chung-Ching, and Jacques M. Hervé. "New Mechanical Generators of Schoenflies Motion Implementing Bennett Linkages." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82224.

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Based on the Bennett 4R chain, we construct a rotating loop by fixing one R axis to the frame and the fixed R becomes a coaxial double R pair. The R pair opposite to the fixed double R is replaced by a spherical S pair which can be equivalent to a (RRR) open chain with non-coplanar intersecting axes. In the (RRR) sub-chain, we choose special axes and derive R|- R|(R(RRR)R chain moving with 2 DoFs. That moving R becomes a coaxial double R with the addition of another rigid body and the obtained chain with hybrid topology generates a 3-dof motion, which is mathematically modeled by a 3D submanifold of a 4D group of X motions. Because of the product closure in an X-motion group, adding an H pair with any pitch and an axis parallel to the fixed R axis leads to a mechanical generator of a 4D X-motion group. Then, parallel arrangement of two generators of the same X motion gives a new parallel generator of X motion, which can be actuated by four fixed R pairs; the two Hs must have distinct pitches. A special design with four collinear actuated axes is revealed too.
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Li, Zongze, Ryuta Sato, Keiichi Shirase, and Yukitoshi Ihara. "Sensitivity Analysis Between Error Motions and Machined Shape Errors in Five-Axis Machining Centers: In Case of S-Shaped Machining Test by a Square End Mill." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2804.

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Abstract Five-axis machining center, combined three linear and two rotary axes, has been increasingly used in complex surface machining. However, as the two additional axes, the machined surface under table coordinate system is usually different from the tool motion under machine coordinate system, and as a result, it is very tough to predict the machined shape errors caused by each axes error motions. This research presents a new kind of sensitivity analysis method, to find the relationship between error motions of each axis and geometric errors of machined shape directly. In this research, the S-shaped machining test is taken as a sample to explain how the sensitivity analysis makes sense. The results show that the presented sensitivity analysis can investigate how the error motions affect the S-shaped machining accuracy and predicted the influence of error motions on certain positions, such as the reversal errors of the axes around motion reversal points. It can be proved that the presented method can help the five-axis machining center users to predict the machining errors on the designed surface of each axes error motions.
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Dassanayake, K. M. Muditha, Masaomi Tsutsumi, and Ohta Katsunori. "Feasibility Study of Using Simultaneous Motion of Two Rotary Axes to Evaluate Machining Center: Simulation." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63310.

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In this paper, a new motion: the two rotary axes simultaneous motion was proposed and the mathematical model which was used to carryout simulations was described. The effect of each deviation on the proposed motion was identified and described one by one. A methodology to estimate all the eight deviations which inherent to tilting rotary table type machining centers was described step by step. This methodology consists of two motions: the proposed motion and C axis radial direction motion. Both the two motions used only the rotary axes. All the motions can be run on one setup. The simulations were carried out by considering that the double ball bar as the measuring device. Furthermore, number of settings which can be used for the new motion were discussed. From this study, it was confirmed that this method can be used for estimate all the eight deviations, accurately.
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Morishita, Kiichi, Ryuta Sato, Keiichi Shirase, and Isamu Nishida. "Enhancement of Motion Accuracy for Cone-Frustum Cutting Motion by Modified NC Program." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6557.

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Motion accuracy of NC machine tools is directory copied onto the machined shape. However, it is known that the motion accuracy is deteriorated by several error courses; geometric and dynamic motion errors of feed axes. In this study, in order to enhance the motion accuracy of NC machine tools, a method that modifies the NC program based on the normal direction error at each command point on the designed path is developed. In the method, the error vector between the commanded and estimated machined shape is obtained. The NC program for the motion is modified by adding the obtained error vector with the opposite sign. In order to confirm the effectiveness of the proposed method, 5-axis motion tests for cone-frustum cutting which is widely applied to the accuracy evaluation of 5-axis machining centers are carried out. At the first, it is confirmed that the proposed method can compensate the dynamic synchronous errors based on the feedback positions and angles of the axes. In addition, it is also confirmed that the proposed method can compensate both of dynamic and geometric errors based on the tool center point trajectory measured by a ball-bar system. As the results, it is clarified that the proposed method can effectively enhance the motion accuracy of the 5-axis machining center.
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Schraft, Jacques Philippe, Dirk Becher, and Jürgen Weber. "Condition Monitoring Strategy for Pump-Driven Hydraulic Axes." In BATH/ASME 2020 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fpmc2020-2757.

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Abstract Electrohydrostatic Actuation Systems (EAS) are characterized by an Electrohydrostatic Pump Unit (EPU) that directly drives a hydraulic actuator. This motion concept combines both advantages of traditional electro-mechanical actuation and electro-hydraulic actuation like high energy efficiency, environmental cleanliness, low noise emission, high force output, and no backslash. In modern IoT/I4.0 environments, the utilization of digital data plays a more and more important role such as histories of sensor data, of working cycles, or of the machine health status. In the example of an EAS, a way is shown to monitor the health status of the integrated hydrostatic machine along with the hydraulic part of such an EAS. The approach described in this paper uses the already existing sensors in an EAS, so no additional hardware is necessary. Based on a model describing the volumetric behaviour of the hydrostatic machine a volumetric health index is developed by introducing a re-normalized efficiency. The proposed methodology is independent on the overall working cycle and is therefore applicable to already running systems or systems with varying working cycle. The calculated Health Index offers the opportunity to monitor the hydrostatic machine as the key element of such an EAS in real time and in a non-invasive and continuous way.
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Bonny, Daniel P., Stephen M. Howell, and Maury L. Hull. "A Computational Analysis of Error in Locating the Rotational Axes of the Tibiofemoral Joint With an Instrumented Spatial Linkage." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80394.

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A method to measure the two kinematic axes of the tibiofemoral joint, the flexion-extension (F-E) axis and longitudinal rotation (LR) axis [1], was developed by Gatti [2]. This method used an instrumented spatial linkage (ISL), a series of six instrumented revolute joints that can measure motion between two rigid bodies. While Gatti’s method demonstrated success in locating the F-E and LR axes, defining the axes and their errors using anatomically relevant coordinate systems would improve clinical relevance. While errors due to revolute joint transducer resolution were computed, errors due to nonlinearity and hysteresis in the transducers were not examined, and errors due to different applied tibiofemoral motions were not examined. Thus the objective was to computationally determine, using anatomically relevant coordinate systems, the errors in locating the F-E and LR axes due to nonlinearity and hysteresis in the revolute joint transducers for three different simulations of applied tibiofemoral motion.
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Hasegawa, Shogo, Tadahiro Nishiguchi, Ryuta Sato, and Keiichi Shirase. "Synchronous motion of translational and rotary axes to evaluate the behavior of rotary axis." In 2016 International Symposium on Flexible Automation (ISFA). IEEE, 2016. http://dx.doi.org/10.1109/isfa.2016.7790185.

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Yulianto, Benny, Ganjar Kurnia, Susilo Adi Widyanto, and Achmad Widodo. "Setting the characteristics of the dynamic drive motor axes accuracy motion to obtain 3 axis CNC machine." In 1ST INTERNATIONAL SEMINAR ON ADVANCES IN METALLURGY AND MATERIALS (i-SENAMM 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0015734.

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Reports on the topic "Axes of motion"

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Hale, L., and T. Wulff. POGAL B-Axis Motor Test. Office of Scientific and Technical Information (OSTI), June 2004. http://dx.doi.org/10.2172/15014367.

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Benedetti, G. A. Derivation of the coupled equations of motion for a circular ring rotating about an axis in the plane of the ring. Office of Scientific and Technical Information (OSTI), March 1996. http://dx.doi.org/10.2172/204264.

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Copland, L., and L. Thomson. The use of structure from motion to produce a high resolution digital elevation model of the White Glacier Basin, Axel Heiberg Island. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/300708.

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