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Mechanical Sciences An open-access journal for theoretical and applied mechanics

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Mech. Sci., 8, 165-178, 2017
https://doi.org/10.5194/ms-8-165-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
16 Jun 2017
Study on the dynamic performance of concrete mixer's mixing drum
Jiapeng Yang1, Hua Zeng2, Tongqing Zhu2, and Qi An1 1School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
2Shanghai Electric Hydraulics & Pneumatics Co., Ltd., Shanghai, 201100, People's Republic of China
Abstract. When working, the geometric distribution shape of concrete in concrete mixing truck's rotary drum changes continuously, which cause a great difficulty for studying the dynamic performance of the mixing drum. In this paper, the mixing system of a certain type of concrete mixing truck is studied. A mathematical formulation has been derived through the force analysis to calculate the supporting force. The calculation method of the concrete distribution shape in the rotary drum is developed. A new transfer matrix is built with considering the concrete geometric distribution shape. The effects of rotating speed, inclination angle and concrete liquid level on the vibration performance of the mixing drum are studied with a specific example. Results show that with the increase of rotating speed, the vibration amplitude of the mixing drum decreases. The peak amplitude gradually moves to the right with the inclination angle increasing. The amplitude value of the peak's left side decreases when tilt angle increases, while the right side increases. The maximum unbalanced response amplitude of the drum increases with the decrease of concrete liquid level height, and the vibration peak moves to the left.

Citation: Yang, J., Zeng, H., Zhu, T., and An, Q.: Study on the dynamic performance of concrete mixer's mixing drum, Mech. Sci., 8, 165-178, https://doi.org/10.5194/ms-8-165-2017, 2017.
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Short summary
The mixing system of a certain type of concrete mixing truck is studied.A mathematical method for calculating the dynamic performance of the mixing drum is established.Results show that with the increase of rotating speed, the vibration amplitude of the mixing drum decreases.The peak amplitude moves to the right with the inclination angle increasing.The maximum unbalanced response amplitude increases with the decrease of concrete liquid level height,and the vibration peak moves to the left.
The mixing system of a certain type of concrete mixing truck is studied.A mathematical method...
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