Design and evaluation of cab seat suspension system based on negative stiffness structure; [基于负刚度结构的驾驶室座椅悬架系统设计与评价]

被引：0

作者：

Liao X. ^{[1
,2
]}

Zhang N. ^{[3
]}

Xing H. ^{[1
]}

Zhang W. ^{[1
]}

机构：

[1] School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang

[2] State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang

[3] School of Mechanical Engineering, Southeast University, Nanjing

来源：

Journal of Southeast University (English Edition) | 2021年 / 37卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Construction machinery; Dynamic properties; Negative stiffness structure; Ride comfort; Seat suspension system;

D O I：

10.3969/j.issn.1003-7985.2021.02.004

中图分类号：

学科分类号：

摘要：

To improve the vibration-isolation performance of cab seats, the optimization model of the seat suspension system of construction machinery cabs is proposed based on the negative stiffness structure. The negative stiffness nonlinear kinetic equation is established by designing the seat negative stiffness suspension structure (NSS). Using MATLAB, the different parameters of the suspension system and their influences on the dynamic stiffness are analyzed. The ideal configuration parameter range of the suspension system is obtained. Meanwhile, the optimization model of NSS is proposed, and the vibration transmissibility characteristics are simulated and analyzed by different methods. The results show that the displacement and acceleration amplitudes of the optimized seat suspension system are evidently reduced, and the four-time power vibration dose value and root mean square calculation values in the vertical vibration direction of the seat decrease by 86% and 87%, respectively. Seat effective amplitude transmissibility (SEAT) and the vibration transmissibility ratio values also decrease. Moreover, the peak frequencies of the vibration transmitted to the driver deviate from the key frequency values, which easily cause human discomfort. Thus, the design of the seat suspension system has no effect on the health condition of the driver after being vibrated. The findings also illustrate that the NSS suspension system has good vibration-isolation performance, and the driver's ride comfort is improved. © 2021, Editorial Department of Journal of Southeast University. All right reserved.

引用

页码：153 / 163

页数：10

共 25 条

[1]

Nguyen S D, Nguyen Q H, Choi S B., A hybrid clustering based fuzzy structure for vibration control-Part 2: An application to semi-active vehicle seat-suspension system, Mechanical Systems and Signal Processing, 56, 57, pp. 288-301, (2015)

[2]

Kulkarni S, Spencer S, Horton D J, Et al., Isolation mount assembly: U.S. 11, 001, 306

[3]

Deshmukh S R, Balaji N S K, Saharabhudhe S, Et al., Designing of control strategy for high voltage battery isolation in an electric vehicles, 2019 IEEE 5th International Conference for Convergence in Technology(I2CT), pp. 1-4, (2019)

[4]

Liu Z T, He H W., Sensor fault detection and isolation for a lithium-ion battery pack in electric vehicles using adaptive extended Kalman filter, Applied Energy, 185, pp. 2033-2044, (2017)

[5]

Griffin M J., Handbook of human vibration, pp. 25-80, (2012)

[6]

Friesenbichler B, Nigg B M, Dunn J F., Local metabolic rate during whole body vibration, Journal of Applied Physiology, 114, 10, pp. 1421-1425, (2013)

[7]

van Eijk J, Dijksman J F., Plate spring mechanism with constant negative stiffness, Mechanism and Machine Theory, 14, 1, pp. 1-9, (1979)

[8]

Lee C M, Goverdovskiy V N, Temnikov A I., Design of springs with "negative" stiffness to improve vehicle driver vibration isolation, Journal of Sound and Vibration, 302, 4, pp. 865-874, (2007)

[9]

Yang J, Xiong Y P, Xing J T., Dynamics and power flow behaviour of a nonlinear vibration isolation system with a negative stiffness mechanism, Journal of Sound and Vibration, 332, 1, pp. 167-183, (2013)

[10]

Han J S, Meng L S, Sun J G., Design and characteristics analysis of a nonlinear isolator using a curved-mount-spring-roller mechanism as negative stiffness element, Mathematical Problems in Engineering, 2018, pp. 1-15, (2018)

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