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Journal articles on the topic 'Timing gear'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Domek, G. "Meshing in Gear with Timing Belts." International Journal of Engineering and Technology 3, no. 1 (2011): 26–29. http://dx.doi.org/10.7763/ijet.2011.v3.195.

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2

Сливинский, Евгений, Evgeniy Slivinskiy, Валентин киселев, and Valentin kiselev. "IMPROVEMENT OF VALVE TIMING GEAR OPERATING CHARACTERISTICS FOR DIESEL ENGINE 14D40 OF LOCOMOTIVE 62M." Bulletin of Bryansk state technical university 2019, no. 4 (2019): 34–40. http://dx.doi.org/10.30987/article_5cb58f5029eab1.34794271.

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It is well-known that any internal combustion engine consists of some simplest gears connected be-tween each other. In this way, a connecting rod gear, distributing gear and auxiliaries are constituents. One of significant drawbacks is an imperfection of a valve timing gear decreasing considerably diesel engine per-formance. To eliminate this drawback in Bunin SU of Yelets there is developed at the invention level a prom-ising design of a valve timing gear having an increased operating reliability at the expense of the application of exhaust valves manufactured according to Patent 2390638 RU.

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3

Domek, Grzegorz, and Michał Wilczyński. "Modelling a timing belt pitch." MATEC Web of Conferences 254 (2019): 01011. http://dx.doi.org/10.1051/matecconf/201925401011.

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The paper deals with the problem of timing belt pitch significance for the dynamics of a timing belt transmission gear motion. Specific pitches of timing belts have been used for many years. They were previously reserved for belts made of rubber, while another group of pitches was intended for belts made of polyurethane. This division ceased to apply recently, and in addition there are belts with pitches which have not been used before, such as HTD9M or AT15. The paper presents the parameter that makes the pulley diameter and the pitch dependent on the number of teeth involved in meshing (coup

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Сливинский, Евгений, and Evgeniy Slivinskiy. "VALVE TIMING GEAR UPDATING FOR DIESEL LOCOMOTIVE ENGINES TO DECREASE SHOCK LOADS AND VIBRATION IN THEM." Bulletin of Bryansk state technical university 2019, no. 3 (2019): 51–57. http://dx.doi.org/10.30987/article_5c8b5ceaafafb2.32465928.

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It is well-known that any internal combustion engine consists of some simplest interconnected mechanisms.  Thus, as constituent mechanisms are a crank gear, a valve timing gear and mechanisms of auxiliary units. One of their significant drawbacks is an imperfection of a valve timing gear decreasing considerably diesel engine performance. To eliminate this drawback at Bunin SU of Yelets there is developed a promising design of a valve timing gear at the invention level having an increased operational reliability at the expense of valves manufactured with the use of patent RU2403408.

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Chen, En Ping, Shao Hui Li, Feng He Wu, and Chong Min Jiang. "Structure Design of Biaxial Rotary Milling Head with High-Torque, High-Precision and Mechanical Spindle." Key Engineering Materials 621 (August 2014): 337–45. http://dx.doi.org/10.4028/www.scientific.net/kem.621.337.

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As a key component of heavy five-axis linkage CNC machine tools, the existing mechanical biaxial rotary milling heads are usually driven by worm gear, timing belt, or multi-stage gears. Worm gear is inefficiency to transmit motion, hard to maintain the accuracy and difficult to eliminate all clearance; Timing belt can be seriously worn and cannot maintain good accuracy; and multi-stage gears transmission has defects such as long chain, low transmission stiffness. This paper aims at designing a biaxial rotary milling head with large output torque of 3000Nm, high precision and high rigidity. So

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S, Nakkeeran. "Gear Drive Mechanism for Continuous Variable Valve Timing of IC Engines." International Journal of Psychosocial Rehabilitation 23, no. 4 (2019): 12–17. http://dx.doi.org/10.37200/ijpr/v23i4/pr190154.

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Sakaridis, Emmanouil S., Georgios D. Ntourmas, Stavros D. Athanasopoulos, and Angelos P. Markopoulos. "A mathematically assisted methodology for the experimental calculation of the internal gear ratios to extend the lifecycle of a hobbing machine." International Journal of Mechanical Engineering Education 46, no. 1 (2017): 50–63. http://dx.doi.org/10.1177/0306419017715425.

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Manufacturing of gears can be achieved with various methods, including the cutting of gears in a hobbing machine. The function of such a machine tool is based on a combination of timing gears which synchronize all moving components accurately. Variations in the synchronization, which alter the geometric features of the gear being cut, are achieved via external gearboxes with interchangeable gears. Thus, precise knowledge of the change gears that correspond to the desired gear geometry is essential in order to operate the machine tool properly. The hobbing machine examined in this paper had rem

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8

Domek, E. G. "Meshing Model in Gear with Timing Belt." Advanced Materials Research 189-193 (February 2011): 4356–60. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.4356.

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The work treats about problem of designing of gear with timing belt depending on expected character of exploitation. The work presents constructional features of transmission timing belts depending on materials used for their production. Design of composites and usage of new polymer materials allows for improvement of constructional properties of belts.

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Herzog, Christoph, and Dietmar Drummer. "Test Rig for The In Situ Measurement of The Elastic Tooth Deflection of Plastic Gears." Polymers 15, no. 7 (2023): 1732. http://dx.doi.org/10.3390/polym15071732.

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A new steel–plastic gear set testing methodology has been developed at the Institute of Polymer Technology (LKT). The in situ gear test rig analyses the timing differences between the index pulses of rotary encoders on the input and output shaft. This measurement principle enables the continuous measurement of the elastic tooth deflection on the one hand and permanent deformations and wear on the other hand by switching between a high loading torque and a low measuring torque. However, the elastic tooth deflection measurement using this principle has not yet been validated. Therefore, in situ

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10

Vigliani, Alessandro. "Angular timing error of a gear set." Mechanics Research Communications 24, no. 6 (1997): 591–96. http://dx.doi.org/10.1016/s0093-6413(97)00075-x.

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11

Domek, Grzegorz, Marian Dudziak, and Andrzej Kołodziej. "Timing Belt Gear Design for Mechatronics System." Procedia Engineering 96 (2014): 39–43. http://dx.doi.org/10.1016/j.proeng.2014.12.095.

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12

Xu, Xiao-lei, and Zhi-wei Yu. "Failure of a Diesel Engine Timing Gear." Journal of Failure Analysis and Prevention 12, no. 3 (2012): 295–99. http://dx.doi.org/10.1007/s11668-012-9562-4.

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13

Herzog, Christoph, and Dietmar Drummer. "Limitations of the Check Calculation for Tooth Deformation of Plastic Gears According to Gear Design Guideline VDI 2736." Polymers 15, no. 18 (2023): 3809. http://dx.doi.org/10.3390/polym15183809.

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An in situ gear test rig has been developed at the Institute of Polymer Technology (LKT) to characterize the deformation of plastic gears during operation. It analyses timing differences between following index pulses of rotary encoders on the input and output shaft. This measurement principle enables the continuous measurement of the elastic tooth deformation and permanent deformations and wear at operating speed by switching between a high and low torque. Gear tests using a steel-polybutylene terephthalate (PBT) gear set were performed at different rotational speeds and tooth temperatures to

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14

Byeon, Seo-Jung, Seong-Jun Kim, Jin-Kam Park, Young-Jun Park, and Jin-Woong Lee. "Parameter Study for Establishing a Synchronizer Control Strategy in Tractor Dual-Clutch Transmission." Agriculture 14, no. 2 (2024): 218. http://dx.doi.org/10.3390/agriculture14020218.

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Research on dual-clutch transmissions in agricultural tractors is on the rise. Dual-clutch transmissions provide a smooth driving experience and easy operation compared to manual transmissions, as they eliminate power interruptions. Accordingly, there is ongoing research to improve the conventional synchronizer pre-selection method. The study introduces a new control strategy to enhance shifting quality by focusing on shift force and timing. Specifically, the goal is to optimize the impact of pre-selection-induced shock and delayed shift time, minimizing discomfort for the driver. According to

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Dong, Yangyang, Changyan Du, Xiaohui Wang, Yi Fan, Shengyou Liao, and Yiyong Han. "Research on the influence of plastic oil pan of the engine on the NVH performance." Journal of Physics: Conference Series 2932, no. 1 (2025): 012033. https://doi.org/10.1088/1742-6596/2932/1/012033.

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Abstract To analyze the dynamic characteristics of diesel engine camshafts and the factors affecting camshaft speed fluctuations, a multi-body dynamic model for gear transmission analysis is established. We analyze and consider the calculation results of spring preload, spring stiffness, cam profile, crankshaft timing gear speed fluctuation, gear meshing clearance, accessory load, and part rotational inertia on the fluctuation of camshaft angular velocity. The results show that gear clearance has a significant impact on camshaft speed fluctuation, while other factors have a relatively small im

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Wei, Yan Gang, Yang Yang, Ta Jin Lin, and Ming Cheng Gao. "Profile Modification of Involute Spur Cylindrical Gear Pair Used in Timing Transmission System of Automobile and its Dynamic Simulation." Key Engineering Materials 568 (July 2013): 123–27. http://dx.doi.org/10.4028/www.scientific.net/kem.568.123.

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According to the FEA simulation results of tooth deformations in the mesh process, the profile modification of the involute spur cylindrical gear pairs used in timing transmission system of an automobile are designed based on the methods and theories proposed by domestic and oversea scholars and experts. The dynamic simulations of the gear pairs with straight line modification profile and involute modification profile under different values of modification amounts are done using dynamic analysis software ADAMS. Then it is testified by simulation results that (i)the mesh impact between the gear

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17

Sigl, Lorenz, and Günter Rau. "Timing right for PM to gear up for competition." Metal Powder Report 63, no. 6 (2008): 26–33. http://dx.doi.org/10.1016/s0026-0657(08)70077-8.

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18

Yuan, Yunbo, Zhiyong Wang, Donghua Wang, Lieyi Dong, Wanyou Li, and Yibin Guo. "Failure investigation of a marine diesel engine timing gear." Engineering Failure Analysis 107 (January 2020): 104203. http://dx.doi.org/10.1016/j.engfailanal.2019.104203.

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19

Abadi, Agus Haris, and Azhis Sholeh Buchori. "DESIGN OF SPECIAL SERVICE TOOLS (SST) MOTORCYCLE TIMING GEAR." Journal of Mechanical Engineering Education 8, no. 2 (2021): 22–30. http://dx.doi.org/10.17509/jmee.v8i2.40927.

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The purpose of designing the special service tools (SST) for motorcycle timing gear is to make it easier for mechanics to carry out the process of removing the motorcycle timing gear. The process of making this tool is carried out in several stages, including the selection of materials and the manufacturing process. The material used is S30C steel because this material has a maximum tensile strength of 48 Kg/mm. The tools used in the manufacturing process include lathes, drilling machines, grinders, saws, files, vise, hacksaws, steel rulers, pins, key sets. The measurement of the material to b

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Domek, Grzegorz, Piotr Krawiec, and Michał Wilczyński. "Timing belt in power transmission and conveying system." MATEC Web of Conferences 157 (2018): 04001. http://dx.doi.org/10.1051/matecconf/201815704001.

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This paper presents the problem of phenomena occurring at the contact of a timing belt and a pulley. Depending on a belt size range these phenomena differ significantly. There is no indication as to what solutions are optimal for drive belts. The analysis of the coupling process and performance tests have shown that the drive belt should have a cord of very good mechanical properties and its raceway side should be made from the material of a low friction coefficient against the pulley material. A flat belt in power transmission and conveying systems cooperates with several elements consisting

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21

Molina-Campoverde, Juan José, Juan Zurita-Jara, and Paúl Molina-Campoverde. "Driving Pattern Analysis, Gear Shift Classification, and Fuel Efficiency in Light-Duty Vehicles: A Machine Learning Approach Using GPS and OBD II PID Signals." Sensors 25, no. 13 (2025): 4043. https://doi.org/10.3390/s25134043.

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This study proposes an automatic gear shift classification algorithm in M1 category vehicles using data acquired through the onboard diagnostic system (OBD II) and GPS. The proposed approach is based on the analysis of identification parameters (PIDs), such as manifold absolute pressure (MAP), revolutions per minute (RPM), vehicle speed (VSS), torque, power, stall times, and longitudinal dynamics, to determine the efficiency and behavior of the vehicle in each of its gears. In addition, the unsupervised K-means algorithm was implemented to analyze vehicle gear changes, identify driving pattern

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22

Peng, D., W. A. Smith, and R. B. Randall. "Locating Faulty Planet Gears Using External Vibration Measurements." International Journal of Condition Monitoring 9, no. 1 (2019): 14–17. http://dx.doi.org/10.1784/204764293664683623.

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In this study, a mesh phasing-based approach is developed to locate the positions of faulty planet gears using external vibration measurements. Previous studies have illustrated how this can be achieved using internal vibration measurements recorded from a sensor placed on the planet carrier. It was shown in these studies that the timing of identifiable fault symptoms in the vibration signal relative to the phase of the gear-mesh component depends on which of the planet gears carries a fault. A signal processing technique is then developed to locate the position of a spalled gear using interna

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23

Mrihardjono, Juli, and Nazaruddin Sinaga. "PENGUJIAN MODEL DRIVING CYCLE KENDARAAN HONDA CITY BERBAHAN BAKAR PREMIUM." Gema Teknologi 16, no. 3 (2012): 141. http://dx.doi.org/10.14710/gt.v16i3.4712.

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Juli Mriharjono, Nazaruddin Sinaga, in this paper explain that a driving cycle model can be used to estimate fuel consumption and exhaust gas emission. Driving cycle varies significantly for traffic conditions. Testing of driving cycle model, for a specific vehicle, is needed so that able to be used as fuel consumption and emissions estimation on real traffics. This paper studied driving cycle model in a laboratory. The EPA standard was reffered as the testing procedure. The vehicle used was Honda City 1.5L fueling with gasoline (premium - in Indonesia). The result shows that driving cycle mod

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Kostrykin, Dmitriy Alekseevich. "Fishing gear and devices for catching fish from fish ponds." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2020, no. 2 (2020): 75–81. http://dx.doi.org/10.24143/2072-9502-2020-2-75-81.

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The article is focused on the problems of protection of biological resources and their habitats, the construction of new and improvement of existing fish breeding enterprises, the introduction of modern automation and mechanization of the most labor-intensive stages in the production of fish is a set of priority measures for the development of fish farming aimed at increasing fish production in inland freshwater bodies. Harvesting the fish ponds, regardless of their category, is a difficult and energy-intensive process. Choosing the type of fishing gear and fishing methods used to catch fish p

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25

Ren, Jia Zhi, Guo Xin Jia, and Li Bin Zhang. "Influences of Cylinder Speed-Change Mechanism Parameter for Processing Property on High-Speed Comber." Advanced Materials Research 308-310 (August 2011): 1981–87. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1981.

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In order to resolve the contradiction of cylinder, nipper and detaching roller in movement coordinate on high speed comber, use elliptic gear transmission make cylinder turn changeably. Use MATLAB software calculates and simulates the angular displacement, angle velocity and angle acceleration of cylinder speed change movement. Then technological parameters such as the timing of combing with cylinder speed change, and the timing of the last row of needle on cylinder through detaching roller are analyzed. The results show: cylinder transmission mechanism by the style of elliptic gear can achiev

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26

Dooner, David B., Antonio Palermo, and Domenico Mundo. "AN INTERMITTENT MOTION MECHANISM INCORPORATING A GENEVA WHEEL AND A GEAR TRAIN." Transactions of the Canadian Society for Mechanical Engineering 38, no. 3 (2014): 359–72. http://dx.doi.org/10.1139/tcsme-2014-0026.

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This paper presents a kinematic study of a mechanism incorporating a Geneva wheel and a gear train to achieve intermittent motion. The goal of this mechanism is to eliminate the acceleration jump at the beginning and end of the Geneva wheel motion. An epitrochoidal path replaces the circular path for the driving pin in a classical Geneva wheel drive. The epitrochoidal path is generated using a gear train and results in zero velocity, acceleration, and jerk at the beginning and end of the Geneva wheel motion. Presented is a comparison of the position, velocity, acceleration, and jerk between th

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Wang, Zengcai, Yazhou Qi, Guoxin Zhang, and Lei Zhao. "Smart Shift Decision Method Based on Stacked Autoencoders." Journal of Control Science and Engineering 2018 (May 31, 2018): 1–13. http://dx.doi.org/10.1155/2018/1098753.

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Manual calibration and testing on real vehicles are common methods of generating shifting schedules for newly developed vehicles. However, these methods are time-consuming. Shifting gear timing is an important operating parameter that affects shifting time, power loss, fuel efficiency, and driver comfort. The stacked autoencoder (SAE) algorithm, a type of artificial neural network, is used in this study to predict shifting gear timing on the basis of throttle percentage, vehicle velocity, and acceleration. Experiments are conducted to obtain training and testing data. Different neural networks

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28

Ghazal, Osama H. M., and Mohamad S. H. Dado. "Gear Drive Mechanism for Continuous Variable Valve Timing of IC Engines." Engineering 05, no. 03 (2013): 245–50. http://dx.doi.org/10.4236/eng.2013.53035.

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Prof., N.A.Ghanokar1 Miss. Arti Hingane2 &. Miss. Mayuri Khune3. "A REVIEW ON THEORETICAL ANALYSIS AND DESIGN OF A VARIABLE DELIVERY EXTERNAL GEAR PUMP FOR LOW AND MEDIUM PRESSURE APPLICATIONS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES [NC-Rase 18] (November 22, 2018): 117–25. https://doi.org/10.5281/zenodo.1494010.

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The objective of the review paper is to described a unique design concept that was capable of electronically controlling the flow which delivered by an external gear pump(EGP). The principal used for varying the flow realize on the variable timing concept which was previously demonstrated by the authors team for EGP’s operating at the high pressure(p< 100 p) but that concept was permits flow to vary within a specified ranges and they didn’t introduce the additional source of power loss. In this review paper above proposition had been applied to invent a design for variable deliv

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30

Walker, Paul David, Nong Zhang, Wenzhang Zhan, and Bo Zhu. "Modelling and simulation of gear synchronisation and shifting in dual-clutch transmission equipped powertrains." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 2 (2012): 276–87. http://dx.doi.org/10.1177/0954406212449550.

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Dual-clutch transmissions have increased in prevalence through the combination of high efficiency and shift quality. This is achieved through the automation of conventional manual transmission synchronisers for gear selection with automated clutch-to-clutch shift control, minimising loss of traction to the road. This article derives a suitably detailed model of a dual-clutch transmission equipped powertrain for the transient simulation and analysis of combined synchroniser engagement and gear shifts. Models are derived for a powertrain equipped with a wet dual-clutch transmission with particul

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31

Zheng, Bin, and Jingdong Zhang. "Modeling and Finite Element Analysis of Timing Gear Cover for an Engine." IOP Conference Series: Earth and Environmental Science 234 (March 8, 2019): 012086. http://dx.doi.org/10.1088/1755-1315/234/1/012086.

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32

Alizadeh, M., H. Khorsand, and Ali Shokuhfar. "Modeling of Mechanical Behavior of Porous Sintered Timing Wheel in Contact with Chain Wheels." Materials Science Forum 561-565 (October 2007): 1649–52. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1649.

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The mechanical properties of sintered timing wheel in contact with chain wheels were analysed using Finite Element Methods (FEM), in which the timing wheel is modelled as a metal powder. The mechanical properties of sintered timing wheel were investigated as a function of sintered density. Tensile strength and Young’s modulus increased with a decrease in porosity. Current methods of calculating gear contact stresses use Hertz’s equations, which were originally derived for contact between sintered timing wheel and chain wheels. The results of the 2D dimensional FEM analyses from ANSYS are prese

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Herzog, Christoph, Michael Wolf, and Dietmar Drummer. "In Situ Measured Tooth Flank Wear of Plastic Gears under Spectrum Loading." Polymers 14, no. 23 (2022): 5239. http://dx.doi.org/10.3390/polym14235239.

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The wear behaviour of PBT-steel gear sets under temporarily changed load has been investigated using an in situ gear test rig developed at the LKT. The in situ test method is based on analysing the timing differences between the index pulses of rotary encoders on the input and output shaft of the test rig. The loading torque was varied between two levels and compared to the permanently applied equivalent average load in terms of the resulting tooth flank wear. Moreover, the number of load changes has been varied to analyse the influence of load changes on the gear wear. The results show that t

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Asche, Frank, Yanyou Chen, and Martin D. Smith. "Economic incentives to target species and fish size: prices and fine-scale product attributes in Norwegian fisheries." ICES Journal of Marine Science 72, no. 3 (2014): 733–40. http://dx.doi.org/10.1093/icesjms/fsu208.

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Abstract Improved fisheries management provides fishers with more opportunities to maximize harvest value by accounting for valuable attributes of the harvest such as species, harvest timing, fish size, product form, and landing location. Harvest values can also vary by vessel and gear type. Moreover, the extent of targeting can influence the ecosystem in which the fishers operate and provide important management challenges. We utilize a unique dataset containing daily vessel-level fish landings in one region of Norway in 2010 to investigate the value of an array of attributes, including speci

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Franck Landry Bayi Boumal, Ahmed E. Aboud, Sernin Banza Mwanabute, Josepha Fansi Nguietchuan, and Jefferson T. Banquando. "Influence of Driver Behavior on Fuel Efficiency in Intercity Buses: A Simulation-Based Study of the Yaoundé-Douala Corridor in Cameroon." Academic Journal of Science and Technology 15, no. 3 (2025): 27–36. https://doi.org/10.54097/318gcm24.

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This study examines the influence of driver behavior on fuel efficiency in intercity buses along Cameroon’s Yaoundé-Douala corridor, a critical route in a fuel-import-dependent transportation sector. Using a combination of real-world driving cycle data and GT-SUITE simulations, we analyzed the fuel consumption of a 70-seater Mercedes Benz Actros 2031 bus under varied driving patterns. Findings indicate that aggressive driving behaviors, characterized by delayed shift timing, aggressive acceleration (0.476 m/s² in MD5 cycle) and abrupt braking, increased fuel consumption to 49.8 L/100 km, while

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Rackov, Milan, Siniša Kuzmanović, Ivan Knežević, et al. "Analysis of Possible Concept Solutions of Chain Drives." MATEC Web of Conferences 290 (2019): 01018. http://dx.doi.org/10.1051/matecconf/201929001018.

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Possible concept solutions of chain drives are analysed in this paper in order to point out the benefits of chain drive application and, in particular, the possibility of application of multi-level chain drive. The paper also analyses the possibility of replacing the gear drives with chain drives, which, in the case of short-term drive and using the same direction of rotation, enables a slightly simpler drive solution. The paper doesn’t consider difference between the roller and gear chains application because these two types of chains can be used very successfully. Also, the possibility of us

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Ingman, Kaytlin, Ellen Hines, Piero L. F. Mazzini, R. Cotton Rockwood, Nadav Nur, and Jaime Jahncke. "Modeling changes in baleen whale seasonal abundance, timing of migration, and environmental variables to explain the sudden rise in entanglements in California." PLOS ONE 16, no. 4 (2021): e0248557. http://dx.doi.org/10.1371/journal.pone.0248557.

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We document changes in the number of sightings and timing of humpback (Megaptera novaeangliae), blue (Balaenoptera musculus), and gray (Eschrichtius robustus) whale migratory phases in the vicinity of the Farallon Islands, California. We hypothesized that changes in the timing of migration off central California were driven by local oceanography, regional upwelling, and basin-scale climate conditions. Using 24 years of daily whale counts collected from Southeast Farallon Island, we developed negative binomial regression models to evaluate trends in local whale sightings over time. We then used

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Reid, Scott, and Anita LeBaron. "Autumn electrofishing reduces harm to Ontario (Canada) stream fishes collected during watershed health monitoring." Conservation Evidence Journal 18 (January 1, 2021): 31–36. http://dx.doi.org/10.52201/cej18hjvu9134.

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Electrofishing surveys provide important information on watershed health, and the status of imperiled and recreationally important stream fishes. Concerns about the harmful effects of electrofishing on the endangered redside dace Clinostomus elongatus have resulted in restrictions on its use in sampling activities in the province of Ontario, Canada. However, the effectiveness of these restrictions is unproven. We undertook a paired sampling gear study in 2018-2019 to test whether an alternate gear (seine nets) or a change in electrofishing timing (autumn rather than summer) reduced harm to str

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Sugiono, Didik, Aini Lostari, Novi Indah Riani, and Aries Kusdyanto. "Studi Eksperimental Pengaruh Variasi CDI Terhadap Performa Kendaraan Empat Langkah." Infotekmesin 14, no. 1 (2023): 135–40. http://dx.doi.org/10.35970/infotekmesin.v14i1.1656.

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The ignition system is a system that greatly affects the performance of a vehicle. Capacity Discharge Ignition (CDI) is a component in the ignition system that works to set the right ignition timing, therefore combustion can be maximized. This study aimed to compare the use of a factory CDI with a CDI from another vehicle, namely the 110 cc Shogun, to determine the performance of a 125 cc GL Max motorbike including torque, power, and fuel consumption to efficiency. The data collection was carried out at speeds of 25 km/hour to 65 km/hour for each gear with an increase of 10 km/hour. The result

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Flynn, Lucy, and Ray Hilborn. "Test fishery indices for sockeye salmon (Oncorhynchus nerka) as affected by age composition and environmental variables." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 1 (2004): 80–92. http://dx.doi.org/10.1139/f03-142.

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In this paper, we explore sources of variability in test fishing indices for sockeye salmon (Oncorhynchus nerka) and illustrate potential solutions. For our analysis, we use the Port Moller test fishery in Bristol Bay, Alaska. The traditional model used to forecast run size using Port Moller test fishery data is based on a simple linear regression of total returns to the fishing districts against the cumulative test fishery catch-per-unit-effort (CPUE) index on a given date. We show that much of the inaccuracy of recent forecasts based on test fishery indices is due to the variable age composi

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Collins, Sydney M., Robert J. Blackmore, Jessika Lamarre, Caleb S. Spiegel, and William A. Montevecchi. "Altering gillnet soak duration and timing minimizes bycatch and maintains target catch." PLOS One 20, no. 6 (2025): e0325725. https://doi.org/10.1371/journal.pone.0325725.

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Seabirds are one of the most at-risk avian groups worldwide, and incidental catch in fishing practices is one of the top threats for seabirds globally. Seabirds that forage on fish through surface feeding, pursuit-diving, or plunge-diving are particularly vulnerable to bycatch. Bycatch mitigation solutions are therefore a vital component of global seabird conservation, but owing to the episodic nature of bycatch and its involvement of match-mismatch contingencies, results from existing efforts involving gear additions (e.g., lights, flags, or buoys) are highly varied and, at times, reduce targ

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Claudio, M., and S. Kramer. "Kinematic Synthesis and Analysis of the Rack-and-Gear Mechanism for Four-Point Path Generation With Prescribed Input Timing." Journal of Mechanisms, Transmissions, and Automation in Design 108, no. 1 (1986): 10–14. http://dx.doi.org/10.1115/1.3260769.

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The rack and gear mechanism is synthesized for generating four prescribed path points with input coordination. This mechanism has a number of advantages over the well-known four-bar linkage. First, the transmission angle is always at its optimum value of 90 deg since the rack is always tangent to the gear. Second, with both translation and rotation of the rack occurring, multiple outputs are available. Other advantages include the generation of monotonic functions for a wide range of motion and nonmonotonic functions for the full range of motion as well as nonlinear amplified motions. In this

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Parker, P. H. "The variable valve timing mechanism for the Rover K16 engine Part 2: Application to the engine and the performance obtained." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 214, no. 2 (2000): 207–16. http://dx.doi.org/10.1177/095440700021400210.

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Part 1 of this paper described the principles and basic design of the Rover variable valve timing system (VVC). This second part describes in detail the mechanical design which was developed to suit the particular requirements of the planned 1.8 litre version of the Rover K16 engine. The testing programme undertaken to establish durability and prove the product is covered and the performance obtained from the VVC engine is compared with the corresponding base engine which uses standard valve gear.

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Han, Xian Teng, Yu Wang, and He Ting Tong. "The Optimization Design of High Precision Long-Range Cartesian Coordinate Robots’ Drive System." Applied Mechanics and Materials 302 (February 2013): 574–77. http://dx.doi.org/10.4028/www.scientific.net/amm.302.574.

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At present, Cartesian Coordinate Robot driving systems have several ways, such as timing-belt, screw, rack-pinion and chain. But, they are difficult to synchronously meet needs of high precision, long range and heavy load. In this paper, Trochoid Cam Gear (TCG) was used as main transmission mechanism to implement high precision and long range motion of the secondary girder of a Cartesian Coordinate Robot, and disposed reasonably the space positions of linear rails and servo motors to meet the needs of heavy load.

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Somerton, David A., and Bert S. Kikkawa. "A stock survey technique using the time to capture individual fish on longlines." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 2 (1995): 260–67. http://dx.doi.org/10.1139/f95-026.

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Longline catches per unit of effort (CPUE) from research surveys are often assumed to vary in proportion to fish abundance. This assumption, however, may be invalid if the abundance of the target species is high enough to saturate the gear or if the abundance of nontarget species is high enough to exclude the target species from capture. We examine a new approach to surveying fish populations with longlines that is based on time-to-capture data measured with small, fish-activated timing devices attached to every hook. A new measure of relative abundance, λ, is developed that is immune to the e

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VEREMEI, G. "METHODOLOGY FOR STUDYING ACCURACY PARAMETERS IN THE PROCESS OF RESTORING THE VALVE SEATS." Herald of Polotsk State University. Series B. Industry. Applied Sciences, no. 1 (March 5, 2024): 18–27. http://dx.doi.org/10.52928/2070-1616-2024-49-1-18-27.

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In this article a methodology for researching the parameters of forming in the process of processing valve seats of an internal combustion engine valve timing gear in an automobile repair industry was described. The practical implementation of this methodology was carried out using laser triangulation sensors based on the developed device for boring valve seats. Experimental dependences of the cutting tool displacement on various processing modes were obtained. Practical recommendations were made on the selection of cutting mode ranges to ensure the required precision p

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Wei, Yangang, Huifang Liu, and Jing Zhao. "Enhancing the Precision of Timing Gear Used in Automobile by Making Use of Azotizing Deformation." MATEC Web of Conferences 61 (2016): 05007. http://dx.doi.org/10.1051/matecconf/20166105007.

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SPINACHE, Edward, Adrian TRANDAFIR, Mihai DIACONU, et al. "The effect of SiO2 nanoparticles content in engine oil on tribological properties of valvetrain chain transmission components." Combustion Engines 179, no. 4 (2019): 4–12. http://dx.doi.org/10.19206/ce-2019-401.

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The drive from the crankshaft to the camshaft in an internal combustion engine is usually carried out by means of a cogged belt transmission or a chain transmission when high millage is required without service operations. The valvetrains in CI engines sometimes use the gear transmissions, and the historical rather bevel gear can be found in old cars of collectors or in some motorcycle engines. The chain gear used in SI engines has a two- or three-row chain with high strength, due the unevenness of loads that additionally induce chain pulling and valve timing deregulation. The chain transmissi

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Nakamura, Katsuaki, Hiroshi Koresawa, and Hiroyuki Narahara. "One Action Press Forming of Helix Bevel Gear by Using Multi-Cylinder Press and Die Heating System." International Journal of Automation Technology 12, no. 5 (2018): 767–74. http://dx.doi.org/10.20965/ijat.2018.p0767.

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In the case of a complex shaped helix bevel gear, the forging of complete gear tips is very difficult to achieve. In almost all cases, tooth profile is finished by cutting machine from simple shaped forged parts, therefore requiring considerable machining time and cost. However, there are many approaches to forging. Forging is mainly classified as hot and cold forging, and uses a single motion press. In the case of hot forging takeoff of products from die is difficult by the cooling shrinkage from die and accuracy of products is lower level than cold forging. In addition, in the case of cold f

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Wilczyński, Michał, and Grzegorz Domek. "Influence of tension layer quality on mechanical properties of timing belts." MATEC Web of Conferences 254 (2019): 05010. http://dx.doi.org/10.1051/matecconf/201925405010.

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Reinforcement of the tooth belts is the element responsible for the transmission of the torque. Its structure is related to the dynamics of the belt and such important parameters as the stiffness of running stability on pulleys and above all, the pitch stability. The axis of symmetry of the reinforcement in the vertical direction of the belt is the reference point of the belt geometry as well as the neutral axis of stresses caused by bending. On the arc of the contact between belt and pulley, over the reinforcement, the belt is stretched, and below it is compressed. In the tooth belts, there a

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