Vibration Reduction of Single Cylinder Diesel Engine used for Agricultural Water Pumping

Jadhav, Pandurang Maruti; Dunung, Sandesh A; Nitnaware, P. T.

doi:10.4271/2015-01-2291

Cited by 2 publications

(2 citation statements)

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“…However, the structural vibration and noise produced by the two-stroke engine are very severe, which have a great impact on the user’s body and the surrounding environment. 15 , 16 Optimizing the mounting system is a very effective method to reduce vibration and noise levels for the two-stroke engine. Here, the excitation induced by the single-cylinder two-stroke engine and the vibration isolation design for the mounting system are first analyzed for further optimization.…”

Section: Vibration Isolation Theory Of a Single-cylinder Two-stroke E...mentioning

confidence: 99%

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Vibration characteristic analysis of single-cylinder two-stroke engine and mounting system optimization design

2020

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Compared with four-stroke engines, single-cylinder two-stroke engines have the characteristics of small inertia, high rotational speed, and wide excitation frequency range. However, the structural vibration and noise generated by the two-stroke engine are very violent. Hence, it is necessary to reduce the vibration and noise of the single-cylinder two-stroke engine. Based on the design theory of the engine mounting system, the excitation frequency, direction, and magnitude of a single-cylinder two-stroke engine are analyzed. The rubber isolator is selected as the new mount element, and the dynamic model of the engine powertrain mounting system is established based on ADAMS software. Based on the sensitivity analysis of the design variables of the mounting system, the natural frequency of the mounting system is used as an objective, and the three-directional stiffness of the mounting system is taken as design variables for the optimization problem. The optimization model is solved by the sequential quadratic programming method. The results show that the maximum frequency of the mounting system after optimization is less than 1/[Formula: see text] of the excitation frequency, and the isolation effect is achieved. The dynamic model and the optimization method presented in this article would provide a useful tool for the design and optimization of mounting system for the single-cylinder two-stroke engine to reduce vibration from the engine to the engine support.

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Section: Vibration Isolation Theory Of a Single-cylinder Two-stroke E...mentioning

confidence: 99%

“…16 Nm. The maximum torque was applied to load excitation in the ADAMS model with the excitation frequency of 83.33 Hz and the torque amplitude of 1.2 Nm.…”

mentioning

confidence: 99%