A comparative study of isolation performance of electric automobile seat’s suspension added by negative-stiffness structure models

Li, Shiming; Li, Haitao; Zhang, Li; Wang, Xiangjie

doi:10.1177/09574565231154242

Cited by 7 publications

(13 citation statements)

References 29 publications

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“…The operation parameters in QSE-SS, QSE-RS, and QSE-AS had been also optimum to assess the isolation efficiency between QSE-SS, QSE-RS, and QSE-AS. 57 The results of the characteristics of the force-displacement and the value of RMS s of QSE-SS, QSE-RS, and QSE-AS were exhibited in the same Figure 20 and listed in Table 7. The investigations indicated that under the simulation condition, the characteristic of the force-displacement and value of RMS s with QSE-AS were lower than that of QSE-SS and QSE-RS.…”

Section: Development Of Seat Suspension Using Qsementioning

confidence: 79%

“…Therefore, the riding quality of the driver was remarkably ameliorated by using QSE. In order to further enhance the QSE's isolation efficiency, based on the structure of QSE designed by steel springs (QSE-SS) in Figures 18 and 20a, these horizontal elastic springs were then replaced by using the rollersprings (QSE-RS) or air-pistons (QSE-AS), [54][55][56][57] as shown in Figures 20(b) and (c). The operation parameters in QSE-SS, QSE-RS, and QSE-AS had been also optimum to assess the isolation efficiency between QSE-SS, QSE-RS, and QSE-AS.…”

Section: Development Of Seat Suspension Using Qsementioning

confidence: 99%

“…The above research indicated that the QSE added into the seat's suspension was very effective in enhancing the riding comfort of vehicles. 18,20,22,54,[57][58][59][60][62][63][64][65] Therefore, QSE was also developed for vibratory roller seat to augment driver's riding comfort in the next part.…”

Section: Development Of Seat Suspension Using Qsementioning

confidence: 99%

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Development of vibration isolation models in vibratory roller’s seat and cabin: A survey

Mei

Liu

Jiao

et al. 2023

Noise & Vibration Worldwide

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Under the impaction of excitation forces of the elastic tire/rigid drum and off-road soil ground interactions, the vibratory roller’s ride quality had been strongly influenced. Thus, the vibration isolation models and structures of the vehicle’s cabin and seat are studied and improved for enhancing the vehicle’s ride quality. To have an overview of the study and development process of the seat suspensions and cabin isolations, this research provides the overall view of the seat and cabin’s vibration isolation models developed and applied to the vibratory rollers based on the results of the existing studies. The study shows that with the semiactive hydraulic isolations (HIs) or semiactive pneumatic-hydraulic isolations (PHIs) applied to the cabin’s vibration isolations, the cabin shaking and driver’s ride quality have been remarkably ameliorated, while, with quasi-zero stiffness elements (QSE) added into the seat suspension, the driver’s ride quality has been greatly ameliorated. Based on the studied results, to control the cabin shaking and enhance the driver’s ride quality, a combination between the cabin’s semiactive HIs and the seat’s QSE should be developed in further studies.

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Section: Development Of Seat Suspension Using Qsementioning

confidence: 79%

Section: Development Of Seat Suspension Using Qsementioning

confidence: 99%

See 1 more Smart Citation

Development of vibration isolation models in vibratory roller’s seat and cabin: A survey

Mei

Liu

Jiao

et al. 2023

Noise & Vibration Worldwide

View full text Add to dashboard Cite

show abstract

“…In addition, the existing research also showed that a new structure of the quasi zero stiffness (QZS) designed and added into the driver's seat suspension could strongly improve the driver's ride comfort. [9][10][11][12] The experimental study of the QZS added into the seat's suspension to evaluate its actual isolation efficiency was also performed in Ref. [13] Then, the operation parameters of the QZS structure were optimized to enhance its efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…But this issue has not been considered yet. Besides, the vibration model of the vehicle seat's suspension equipped with the QZS structure was used by the vibration excitation of the rigid road surface to evaluate the isolation efficiency of the QZS structure, [10][11][12][13][14] the soil compactors mainly moved and compressed on the elastoplastic terrains. Therefore, the QZS structure also needs to be evaluated under the excitation of the deformable terrain surface to evaluate its isolation efficiency and stability.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of the SCI-QZS combined with the CCI in improving ride quality of soil compactors

Nguyen

Ye³

2023

Noise & Vibration Worldwide

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To decrease the operator’s seat vibration and control the cab’s shaking of the soil compactor, the seat’s control isolation (SCI) added by the QZS structure (SCI-QZS) and the cab’s control isolations (CCI) combined are proposed and investigated. A three-dimensional dynamic model of the soil compactor under the interaction of the tire and drum on the deformable terrain is established to calculate the vibration equation of the soil compactor. The vehicle’s experimental study with the seat’s isolation added by the QZS structure is also given to verify the mathematical model and study result. The isolation efficiency and stability of the SCI-QZS and CCI combined are evaluated based on the root mean square accelerations of the operator’s seat ( aws) and cab’s pitching angle ( a wφc) under the various conditions of the soil compactor. The research shows that with the isolation systems of the soil compactor seat and cab without the QZS structure and control, the operator’s ride comfort and the cab’s shaking are strongly affected under various operating conditions. With the soil compactor using the SCI-QZS and CCI combined, both the operator’s ride comfort and the cab’s shaking are greatly reduced under all the various operating conditions. Especially, the aws and a wφc are remarkably reduced by 67.8% and 59.8% in comparison with the isolation systems of the soil compactor seat and cab without the QZS structure and control. Therefore, the SCI-QZS and CCI combined should be applied on the soil compactor to improve the operator’s ride comfort and control the cab’s shaking of the soil compactors or other off-road vehicles.

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A Piezoelectric Electromagnetic Composite Energy Harvester for Collecting Pedestrian Walking Energy

Feng,

Wang,

Yang

et al. 2024

Physica Status Solidi (a)

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A piezoelectric‐electromagnetic composite energy harvester (PECEH) has been designed, to mainly study the relationship between the length and angle of piezoelectric cantilever beams and their power generation performance, and the analysis of dynamic models in magnetic levitation systems and the impact of magnet size on power generation performance. In this device, piezoelectric energy harvester (PEH) and electromagnetic harvester (EMH) are used as powered and sensing, respectively. The PEH collects vibration to generate electricity and supplies energy to the EMH, which then transmits the wireless signal. EMH adopts a magnetic levitation device with higher sensitivity, while PEH uses a direct contact strike piezoelectric plate to increase power generation. The paddles are made of flexible materials, which increase the durability of the device. The prototype was tested at different excitation frequencies. Research has shown that at a frequency of 1.4 Hz, the optimal voltage and power are 126.28, 4.04 V, and 4.9 mW and 0.57 μW. 60 light emitting diode can be lit when pedestrians are walking. Therefore, PECEH can be used to collect the vibration energy of pedestrians while walking, providing power to sensors and microstructure.

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A comparative study of isolation performance of electric automobile seat’s suspension added by negative-stiffness structure models

Cited by 7 publications

References 29 publications

Development of vibration isolation models in vibratory roller’s seat and cabin: A survey

Development of vibration isolation models in vibratory roller’s seat and cabin: A survey

Efficiency of the SCI-QZS combined with the CCI in improving ride quality of soil compactors

A Piezoelectric Electromagnetic Composite Energy Harvester for Collecting Pedestrian Walking Energy

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