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2000
Volume 18, Issue 5
  • ISSN: 2212-7976
  • E-ISSN: 1874-477X

Abstract

Background

When the crawler engineering vehicle is driving in the field, the uneven ground has a very severe vibration impact on it, which affects efficiency and comfort. This paper discusses various patents and designs of a new type of sliding viscoelastic suspension for crawler engineering vehicles.

Objective

The purpose of the study was to analyze the influence of piecewise stiffness and damping parameters of the new suspension on the vibration reduction performance of the crawler engineering vehicle to provide a theoretical basis for the rational design of suspension parameters in order to better solve the problem of severe vibration and impact on the walking mechanism of crawler engineering vehicles.

Methods

In this study, recent patents on crawler engineering vehicle suspension have been investigated, and a new type of crawler engineering vehicle with sliding viscoelastic suspension has been designed. A single degree-of-freedom piecewise asymmetric nonlinear vibration model has been established according to the load-displacement test curve of the new type of sliding viscoelastic suspension. According to the average method, the approximate analytical solution of the vibration model has been obtained, and then the system parameter values have been changed to analyze the influence of the change on the vibration reduction performance of the vehicle.

Results

The resonance frequency of the crawler engineering vehicle could be avoided by using the new type of sliding viscoelastic suspension; the force transmissibility coefficient rose slowly in the natural frequency resonance region, and the damping performance has been found to be better. The amplitude of vibration displacement changed a little, meeting the requirements of bearing strength and stability under heavy loads. It has been found suitable for working under low frequency and large load conditions, and its mechanical characteristic parameters matched the loaded mass.

Conclusion

The new type of sliding viscoelastic suspension for crawler engineering vehicles can improve the vibration reduction performance of the crawler engineering vehicles, the service life of the vehicle components, and the comfort of driving. The theory and analysis method used in this study can be applied to the design optimization of high-quality viscoelastic suspension.

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2024-05-30
2025-11-14

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Research on Vibration Reduction of Sliding Viscoelastic Suspension for Crawler Engineering Vehicle
Recent Patents on Mechanical Engineering 18, 641 (2025); https://doi.org/10.2174/0122127976303572240515104038
/content/journals/meng/10.2174/0122127976303572240515104038
/content/journals/meng/10.2174/0122127976303572240515104038
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  • Article Type:     Research Article
Keyword(s): comfort of driving; Crawler vehicle; damping characteristics; graphene; shock absorber; sliding viscoelastic suspension

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