Results 211 to 220 of about 20,641 (257)

Cummins 4B Noise Reduction Anti-Backlash Camshaft Gear

SAE Technical Paper Series, 1999
<div class="htmlview paragraph">An anti-backlash camshaft gear has been developed for the Cummins B Series 4-cylinder diesel engines. This gear reduces the gear train impact to result in lower engine noise levels and improved engine sound quality.
Jeffrey C. Huang, Kwin R. Abram
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Innovative design of non-backlash worm gear drives

Archives of Civil and Mechanical Engineering, 2018
Abstract In this paper the authors present the newest designs of worm gear drives which allow to adjust or decrease the amount of backlash. This effect is achieved with innovative designs of worms and worm wheels. The designed drives are aimed to find their application in systems for precise positioning of measurement assemblies, precise drives of ...
Wojciech Kacalak, Maciej Majewski, Zbigniew Budniak   +2 more
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Dynamics of gear-pair systems with backlash

1999
Dynamics of gear-pair systems involving backlash and time-periodic stiffness is investigated. First, the equation of motion is presented in a strongly nonlinear form, with periodic stiffness and external forcing terms. Then, several types of periodic steady-state response are identified and determined by applying a methodology, that is suitable for ...
S. Theodossiades, S Natsiavas
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The Self-Compensation Approach for Backlash on Gear Pair

Volume 6: Design, Systems, and Complexity, 2021
Abstract The way to properly account for variations in operating center distance and in functional tooth thickness are not obvious. The method presented here will give a good estimate of the range of operating backlash, provided the range of operating center distance and the range of operating functional tooth thickness is known.
Bahadır Karba, Nihat Yıldırım
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Research on gears’ dynamic performance influenced by gear backlash based on fractal theory

Applied Surface Science, 2014
Abstract Gear backlash has an import influence on gear dynamics and due it has a strong non-linear character, so its effect on the gear dynamics is very complex. In order to get reasonable and precise dynamic analytic result, the fractal theory is employed here to express the backlash instead of the existed way of setting backlash as a fixed value or
Qi Chen, Yunbo Ma, Shouwu Huang, Hua Zhai   +3 more
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Speed control of 2-inertia system with gear backlash using gear torque compensator

AMC'98 - Coimbra. 1998 5th International Workshop on Advanced Motion Control. Proceedings (Cat. No.98TH8354), 2002
In this paper, a new speed control method for 2-inertia system with gear backlash is proposed, which uses gear torque compensator. This compensator consists of two elements: the gear torque compensator and the feedback gain. The gear torque compensator consists of the gear torque observer and a gain; it has the characteristics of the motor torque ...
M. Odai, Y. Hori
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Nonlinear adaptive control for manipulator system with gear backlash

Proceedings of 35th IEEE Conference on Decision and Control, 1996
The backlash, which is caused by a gap between an actuator-side gear tooth and a link-side gear tooth, is a common phenomenon in manipulator systems with gear in their joints. However, if the amount of backlash is greater than the maximum allowed amount which is to ensure satisfactory meshing of gear, the system instability may appear in dynamic ...
null Jung-Hua Yang, Li-Chen Fu
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Development of an intelligent rotary drivetrain including lifespan monitoring, lifespan optimisation, gear backlash monitoring and event-related gear backlash elimination

2023
Arbeit an der Bibliothek noch nicht eingelangt - Daten nicht geprueft - gesperrte Arbeit (bis 2026-04-28+02:00)
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BACKLASH DETECTION IN GEARED MECHANISMS: MODELING, SIMULATION, AND EXPERIMENTATION

Mechanical Systems and Signal Processing, 1997
Abstract Backlash is a common fault that occurs in geared mechanisms, and can produce inaccuracy or uncontrollability of the mechanism. It is shown that, by modeling backlash as a microscopic impact, its presence can be detected and possibly measured using only simple sensors. The first stage of modeling establishes the need for the use of non-linear
N. Sarkar, R.E. Ellis, T.N. Moore
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Adaptive control of robot manipulators with anti-backlash gears

Proceedings of 1995 IEEE International Conference on Robotics and Automation, 2002
This paper proposes a control method for robot manipulators that have anti-backlash gears in the joints. The anti-backlash gear is modeled as a three segment flexible joint characteristic. A controller consists of a PD feedback part and a full dynamics feedforward part. This control method employs the sliding control scheme. In order to make the tip of
N. Imasaki, M. Tomizuka
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