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Добірка наукової літератури з теми "Pneumatic unit dynamics"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Pneumatic unit dynamics"

1

Stoll, Johannes T., Kevin Schanz, and Andreas Pott. "Mechatronic Control System for a Compliant and Precise Pneumatic Rotary Drive Unit." Actuators 9, no. 1 (2019): 1. http://dx.doi.org/10.3390/act9010001.

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Анотація:

Robots that enable safe human-robot collaboration can be realized by using compliant drive units. In previous works, different mechanical designs of compliant pneumatic rotary drive units with similar characteristics have been presented. In this paper, we present the overall control approach that we use to operate one of these compliant pneumatic rotary drive units. We explain the mechanical design and derive the differential equation that describes the dynamics of the system. In order to successfully operate a pneumatic drive unit with three or more working chambers, the torque specified by t

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2

Carmona, M., S. Marco, J. Samitier, M. C. Acero, J. A. Plaza, and J. Esteve. "Modeling the Thermal Actuation in a Thermo-Pneumatic Micropump." Journal of Electronic Packaging 125, no. 4 (2003): 527–30. http://dx.doi.org/10.1115/1.1604154.

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Анотація:

The analysis of a thermo-pneumatic actuation unit for its use in a micropump has been carried out. Coupled thermo-mechanical simulations by finite element method (FEM) (with ANSYS software) were required because of the complexity of the device. The simulation results were validated by thermal and mechanical experimental results, showing a good agreement. FEM results have been used to extract a high level model of the actuation unit that can be used to estimate the maximum performance of the micropump operation with this actuation unit. In order to identify the best frequency of operation for t

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3

Leontiev, Aleksandr, Vitalii Tauger, Evgenii Volkov, and Volkov Volkov. "The dynamics of a laden skip of the shaft pneumatic winding plant during acceleration." Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal, no. 1 (February 17, 2021): 115–21. http://dx.doi.org/10.21440/0536-1028-2021-1-115-121.

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Анотація:

Introduction. Ratios for calculating the laden skip acceleration and speed at the motion start are required to calculate skip pneumatic winding plant cycle components. The ratios are the solution to the skip dynamics equation which takes into account the relationship between the flow generated by a power unit and air pressure. Research methodology. The dynamics equation including the dependence of the pressure on the flow rate (aerodynamic characteristic) in a general form is compiled. In a special case of the unit’s physical model, a discharge unit with a linear aerodynamic characteristic is

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4

Bobrow, J. E., and F. Jabbari. "Adaptive Pneumatic Force Actuation and Position Control." Journal of Dynamic Systems, Measurement, and Control 113, no. 2 (1991): 267–72. http://dx.doi.org/10.1115/1.2896374.

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Анотація:

In this paper an implementation of an adaptive control law for a pneumatic actuator is presented. Pneumatic actuators are of particular interest for robotic applications because of their large force output per unit weight, and their low cost. Stabilization of a pneumatic actuator is difficult if a high bandwidth closed-loop system is desired. This is because of the compressibility of air, and of the nonlinear characteristics of air flowing through a variable area orifice. Further complications arise from the geometry of the mechanism because the equations of motion are highly nonlinear. The or

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5

Efremova, K. D., and V. N. Pilgunov. "Pneumatic Muscle: Geometry of the Cylindrical Membrane and The Power Characteristic Prognostic." Mechanical Engineering and Computer Science, no. 3 (April 8, 2018): 20–34. http://dx.doi.org/10.24108/0318.0001377.

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Анотація:

The pneumatic muscle is a pneumatic motor of the single-acting reciprocating motion. It is designed to create apullingforce. Return of the pneumatic muscle to its original position is provided by elastic deformation of its shell. A cylindrical membrane with the hard bottom and the lid provides the basis of the pneumatic muscle.The membrane cord is formed in the process of helically shaped CU-braid of the threads made from the super-hard synthetic fibres (for example, Kevlar). After the cord is filled with an elastomer, a strong, deformable and elastic shell is formed. An excessive pressure app

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6

Godzhaev, Z. A., and A. M. Pogozhina. "Prospects for the development of undercarriage systems of modern mobile energy devices for agricultural purposes." Traktory i sel hozmashiny 85, no. 5 (2018): 76–84. http://dx.doi.org/10.17816/0321-4443-66429.

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Анотація:

The final stage of the cultivation of crops is harvesting. The quality of the operation depends on the annual result of the effectiveness of all previous work. It is important not only to harvest well, but to preserve the fertility of the soil and avoid soil compaction. The problem of compression is becoming more acute due to the massive use of heavy wheeled tractors and combines. The degree of soil compaction depends on the type of propulsion unit, the weight of the tractor and the number of passes of the units across the field. The negative impact of undercarriage systems on the soil should

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7

Zhang, Yu, Wenchuan Zhao, Ning Wang, and Dengyu Lu. "Development and Performance Analysis of Pneumatic Soft-Bodied Bionic Basic Execution Unit." Journal of Robotics 2020 (November 3, 2020): 1–13. http://dx.doi.org/10.1155/2020/8860550.

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Анотація:

This paper studies the design of pneumatic soft-bodied bionic basic execution unit with soft-rigid combination, which can be used as an actuator for pneumatic soft-bodied robots and soft-bodied manipulators. This study is inspired by structural characteristics and motion mechanism of biological muscles, combined with the nonlinear hyperelasticity of silica gel and the insertion of thin leaf spring structure in the nonretractable layer. Response surface analysis and numerical simulation algorithm are used to determine the optimal combination of structural dimension parameters by taking the maxi

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8

Kuz´niewski, B. "Nonlinearity and Feedback Compensation Method in a Pneumatic Vibration Generator." Journal of Dynamic Systems, Measurement, and Control 122, no. 1 (1996): 163–67. http://dx.doi.org/10.1115/1.482437.

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Анотація:

The paper presents a model of a pneumatic piston unit and analyzes dynamic processes taking place in the unit generating periodic signals. Nonlinearities and feedback occurring in flow and vibration processes are determined. A method of nonlinearity and feedback compensation by input parameters of air streams is presented. [S0022-0434(00)00201-X]

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9

VERRELST, BJÖRN, JIMMY VERMEULEN, BRAM VANDERBORGHT, et al. "MOTION GENERATION AND CONTROL FOR THE PNEUMATIC BIPED "LUCY"." International Journal of Humanoid Robotics 03, no. 01 (2006): 67–103. http://dx.doi.org/10.1142/s0219843606000655.

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Анотація:

This paper reports on the control structure of the pneumatic biped "Lucy." The robot is actuated with pleated pneumatic artificial muscles which have interesting characteristics that can be exploited for legged machines. They have a high power-to-weight ratio, an adaptable compliance and they can reduce impact effects. The current control architecture focuses on the trajectory generator and the tracking controller, which is divided into a computed torque controller, a delta-p unit, a PI position controller and a pressure bang-bang controller. The trajectory generator provides polynomial joint

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10

Kushnir, V. G., O. A. Benyukh, I. N. Shilo, N. N. Romanyuk, and V. A. Ageychik. "Improvement of suspension system of mobile power units." Traktory i sel hozmashiny 81, no. 5 (2014): 37–39. http://dx.doi.org/10.17816/0321-4443-65620.

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Анотація:

Original designs of pneumatic-tyre movers and vehicle suspension are proposed. Their use will permit to increase reliability, operation durability, ride comfort, and cross-country capability of machine and tractor unit; to improve operator work conditions; to decrease vertical vibration and dynamic loads on supporting surface as well as soil compaction.

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