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Journal articles on the topic 'Pneumatic-mechanical loader'

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1

Bobkov, S. I. "A pneumatic-mechanical scheme of hay pickup loader." Traktory i sel hozmashiny 79, no. 8 (2012): 50–52. http://dx.doi.org/10.17816/0321-4443-69495.

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2

BUKAŁA , Michał, Ryszard CHMIELEWSKI , Andrzej CHYLA , Leopold KRUSZKA, Paweł OSTATEK , and Kamil SOBCZYK . "Analysis impact of construction site vibrations propagated through the ground on a selected residential building and its residents." Engineering Expert, no. 1 (December 31, 2020): 16–23. http://dx.doi.org/10.37105/enex.2020.1.1.03.

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An analysis of the harmful effects of vibrations generated as a result of works involving construction site equipment and propagated to an adjacent building and its users through the ground was carried out within the scope of this paper. Mechanical vibrations were generated during construction works by a pneumatic drill and a backhoe loader in the north east section of the 2nd line of the Warsaw Metro. The vibrations were assessed pursuant to the requirements specified in the Polish PN-B-02170:2016-12 standard and compared with the standard threshold values. The research methodology, taking in
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Gennadii, Golub, Tsyvenkova Nataliya, Chuba Viacheslav, Kukharets Savelii, Yarosh Yaroslav, and Tereshchuk Marina. "RESEARCH OF THE OPERATION EFFICIENCY OF VEGETABLE BIOMASS-OPERATED SOLID FUEL BOILER." Technology audit and production reserves 5, no. 1 (49) (2019): 22–28. https://doi.org/10.15587/2312-8372.2019.183054.

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<em>The object of research is the process of ensuring uniform distribution of fuel over the combustion surface of the combustion chamber of a solid fuel boiler operating on biomass. The uniform distribution of fuel over the combustion surface is one of the important levers for eliminating the phenomena of its chemical and mechanical under-conditioning, which increases the efficiency of boiler equipment. One of the problems of studying this issue is the lack of a sufficient theoretical base and practical experience in the process of chemical-thermal conversion of plant biomass to other types of
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4

Chuanchao, Yan, and Zhao Wen. "The use of pneumatic cylinders with return springs when creating mechanical drives with recuperative energy." MATEC Web of Conferences 287 (2019): 01028. http://dx.doi.org/10.1051/matecconf/201928701028.

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The use of pneumatic cylinders with return springs in mechanical drives with reusable energy for reusable and continuum movements, fixing the output link in the extreme positions are considered. A defined range of work operations can be used by these cylinders. The use of pneumatic actuators with return springs in mechanical drives based on linear spring batteries with two springs is proposed. Algorithms for compensating dissipative losses in mechanical spring drives are considered. The maximum mass values that can be moved by such mechanical drives for each size of the pneumatic cylinder are
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5

Chen, B. "Material Characterization of Tire Cords and the Effects of Cord Thermal-Mechanical Properties on Tires." Tire Science and Technology 32, no. 1 (2004): 2–22. http://dx.doi.org/10.2346/1.2186771.

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Abstract Thermal-mechanical properties of tire cords have a great influence on tire dimension, shape, handling, and other performance related issues. This study focuses on characterizing the material properties for polymeric cords and quantifying their effects on pneumatic tires using finite element analysis (FEA). Various tire cord materials, including nylon and polyester, were characterized by obtaining a series of thermal-mechanical properties in the laboratory using tensile testing, thermal shrinkage measurement and creep testing. Prior to obtaining these laboratory measurements, cords in
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6

Anifantis, Alexandros Sotirios, Maurizio Cutini, and Marco Bietresato. "An Experimental–Numerical Approach for Modelling the Mechanical Behaviour of a Pneumatic Tyre for Agricultural Machines." Applied Sciences 10, no. 10 (2020): 3481. http://dx.doi.org/10.3390/app10103481.

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The mechanical behaviour of an agricultural tyre is a matter of extreme interest as it is related to the comfort of operators, to the adherence of agricultural machines, and to the compaction of agricultural soil. Moreover, the deformability of the tyres plays a fundamental role in vehicle stability in terms of side rollover. The behaviour of a loaded tyre during its deformation is complex, due to the combined contributions of the carcass components, the tread rubber and the air contained within it. Therefore, this study proposes an experimental–numerical approach for the mechanical characteri
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7

Leonid, Kutsenko, Vanin Volodymyr, Naidysh Andrii, et al. "DEVELOPMENT OF A GEOMETRIC MODEL OF A NEW METHOD FOR DELIVERING EXTINGUISHING SUBSTANCES TO A DISTANT FIRE ZONE." Eastern-European Journal of Enterprise Technologies 4, no. 7 (106) (2020): 88–102. https://doi.org/10.15587/1729-4061.2020.209382.

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A geometric model of a new method of delivering fire-extinguishing substances to a fire zone located at a considerable distance was offered. The idea of delivery is based on the mechanical action of throwing. To this end, a substance (e.g. extinguishing powder) is loaded in a hard shell made as a special container. After delivery by means of a launcher to a fire zone, the container has to release the substance which will promote fire extinguishing. The known method of remote delivery of extinguishing substances uses a pneumatic gun with a cylindrical container. During delivery, the cylinder mu
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8

O’Neill, Søren, Casper Glissmann Nim, and Natalie Hong Siu Chang. "Validation of a spring loaded probe for single and repeat pressure pain testing, including public domain specifications for design and manufacture." PLOS ONE 19, no. 1 (2024): e0292809. http://dx.doi.org/10.1371/journal.pone.0292809.

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Temporal summation of pressure pain is technically more challenging than simple pressure pain thresholds. The current study describes the design, manufacture and validation of a simple mechanical test apparatus to assess the temporal summation of deep pressure pain. We release design details into the public domain with the intention of providing free access for researchers especially in low income countries. Utility and validity of the probes were assessed by pressure application in three different experimental setups: A. Identifying potential issues which needed to be addressed to ensure a re
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9

Xiong, Xicheng, Jianhua Wei, and Jian Chen. "Modeling, Experimentation, and Simulation of an Air-Over-Hydraulic Brake System." Journal of Dynamic Systems, Measurement, and Control 131, no. 3 (2009). http://dx.doi.org/10.1115/1.3089563.

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This paper deals with the development and validation of an analytical dynamic model of an air-over-hydraulic (AOH) brake system that is widely used on loaders. The AOH system is broken into five simple and cascaded subsystems, pneumatic circuit, air-hydraulic actuator, brake line, wheel cylinder, and disk brake. Pneumatic, hydraulic, and mechanical dynamics are taken care of in each subsystem. The determination of model coefficients is introduced in detail. Many experiments are performed on an experimental setup of the real AOH system on a loader and the experimental data are compared with the
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10

Ružarovský, Roman, Danišová, Nina, Velíšek, and Karol. "Identification of Individual Objects at the Intelligent Assembly Cell." International Journal of Mechanical, Industrial and Aerospace Sciences 5.0, no. 7 (2012). https://doi.org/10.5281/zenodo.1331307.

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In this contribution is presented a complex design of individual objects identification in the workplace of intelligent assembly cell. Intelligent assembly cell is situated at Institute of Manufacturing Systems and Applied Mechanics and is used for pneumatic actuator assembly. Pneumatic actuator components are pneumatic roller, cover, piston and spring. Two identification objects alternatives for assembly are designed in the workplace of industrial robot. In the contribution is evaluated and selected suitable alternative for identification – 2D codes reader. The complex design of individual ob
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11

Li, Yiqi, Yelin Jiang, and Koh Hosoda. "Design and sequential jumping experimental validation of a musculoskeletal bipedal robot based on the spring-loaded inverted pendulum model." Frontiers in Robotics and AI 11 (January 31, 2024). http://dx.doi.org/10.3389/frobt.2024.1296706.

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To effectively control a robot’s motion, it is common to employ a simplified model that approximates the robot’s dynamics. Nevertheless, discrepancies between the actual mechanical properties of the robot and the simplified model can result in motion failures. To address this issue, this study introduces a pneumatic-driven bipedal musculoskeletal robot designed to closely match the mechanical characteristics of a simplified spring-loaded inverted pendulum (SLIP) model. The SLIP model is widely utilized in robotics due to its passive stability and dynamic properties resembling human walking pat
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12

KHAN, FARHEEN BANO, VAISHALI KILOR, NIDHI SAPKAL, and PRIYA DULE. "FORMULATION DEVELOPMENT OF MOUTH DISSOLVING PRINTED FILM OF KETOROLAC AND IN VITRO EVALUATION." International Journal of Applied Pharmaceutics, September 7, 2022, 128–36. http://dx.doi.org/10.22159/ijap.2022v14i5.45350.

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Objective: The present research work was carried out to prepare Ketorolac printed Oral Thin Films using a pneumatic pressure printer. In this research, we attempted to prepare a non-contact printing system by using pneumatic pressure-based printer that incorporates printing of active pharmaceutical ingredients onto a medical-grade Orodispersible film for developing personalized medication. Methods: In the present work Ketorolac Trometamol was used as a model drug. Placebo substrate was developed by using cellulosic polymers like HPMC, MCC, Neusilin, and starch to impart paper-like properties t
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13

Kerr, Thomas, Andrew Crandall, Dara Childs, and Adolfo Delgado. "Static and Dynamic Coefficient Measurements for a Thrust Collar Used in an Integrally Geared Compressor." Journal of Engineering for Gas Turbines and Power 141, no. 5 (2019). http://dx.doi.org/10.1115/1.4041654.

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This paper introduces a test facility specifically designed to measure the axial stiffness and damping coefficients of an oil-lubricated thrust collar (TC). The geometry, load, and speeds of the test facility are representative of a production integrally geared compressor (IGC). Separate electric motors spin the shafts according to an assumed gear ratio; a pneumatic air piston loader provides a noncontacting, static thrust force; a remotely controlled impact hammer delivers a perturbation force; and eddy-current motion probes record the resulting vibration. The paper uses a one degree-of-freed
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14

Li, Yiqi, Yelin Jiang, and Koh Hosoda. "Controller design and experimental validation of walking for a musculoskeletal bipedal lower limb robot based on the spring-loaded inverted pendulum model." Frontiers in Robotics and AI 11 (November 5, 2024). http://dx.doi.org/10.3389/frobt.2024.1449721.

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In the study of PAM (McKibben-type pneumatic artificial muscle)-driven bipedal robots, it is essential to investigate whether the intrinsic properties of the PAM contribute to achieving stable robot motion. Furthermore, it is crucial to determine if this contribution can be achieved through the interaction between the robot’s mechanical structure and the PAM. In previous research, a PAM-driven bipedal musculoskeletal robot was designed based on the principles of the spring-loaded inverted pendulum (SLIP) model. The robot features low leg inertia and concentrated mass near the hip joint. Howeve
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15

Heckelsmiller, David J., M. James Rudert, Thomas E. Baer, Douglas R. Pedersen, Douglas C. Fredericks, and Jessica E. Goetz. "Changes in Joint Contact Mechanics in a Large Quadrupedal Animal Model After Partial Meniscectomy and a Focal Cartilage Injury." Journal of Biomechanical Engineering 139, no. 5 (2017). http://dx.doi.org/10.1115/1.4036148.

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Acute mechanical damage and the resulting joint contact abnormalities are central to the initiation and progression of post-traumatic osteoarthritis (PTOA). Study of PTOA is typically performed in vivo with replicate animals using artificially induced injury features. The goal of this work was to measure changes in a joint contact stress in the knee of a large quadruped after creation of a clinically realistic overload injury and a focal cartilage defect. Whole-joint overload was achieved by excising a 5-mm wedge of the anterior medial meniscus. Focal cartilage defects were created using a cus
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16

Subhash, Swathi Krishna, Qingchuan Song, Paul H. Kamm, et al. "A Paraffin‐Based Photoresin: 3D Printing of Paraffin for Encapsulation‐Free Shape‐Stabilized Paraffin‐Based Phase Change Materials." Advanced Materials Technologies, April 24, 2025. https://doi.org/10.1002/admt.202500617.

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AbstractHigh‐resolution structuring of paraffin wax as phase change material is essential for miniaturized applications in thermal actuators, flexible electronics, and sensors, yet requires complex encapsulation methods that limit design freedom and increase costs. A low‐cost encapsulation‐free approach is demonstrated for preparing shape‐stabilized paraffin‐based phase change materials using digital light processing based 3D printing. In this work, a paraffin‐loaded photoresin with paraffin concentrations up to 60 wt.% in acrylated polymer networks. The printed parts are thermally responsive
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17

Espinosa Maldonado, Alvaro, Allan Dolovich, JD Johnston, and Emily McWalter. "Design, Evaluation & Implementation of a Novel MRI-compatible Physiologic Loading Simulator for Ex-Vivo Joints." Journal of Biomechanical Engineering, October 22, 2024, 1–50. http://dx.doi.org/10.1115/1.4066957.

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Abstract Quantitative magnetic resonance imaging (qMRI), in combination with mechanical testing, offers potential to investigate how loading is related to joint and tissue function. However, current testing devices compatible with MRI are often limited to uniaxial compression, often applying low loads, or loading individual tissues (instead of multiple), while more complex simulators do not facilitate MRI. Hence, in this work, we designed, built and tested (N=1) an MRI-compatible multiaxial load-control system which enables scanning cadaveric joints (healthy or pathologic) loaded to physiologi
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