Structural Modal Analysis and Optimization of SUV Door Based on Response Surface Method

Chen, Hao; Lu, Chihua; Liu, Zhien; Shen, Cunrui; Sun, Yuguang; Sun, M.

doi:10.1155/2020/9362434

Cited by 7 publications

(4 citation statements)

References 22 publications

(33 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The design parameters of the TM-S are used as input, and the torque-angle characteristics are used as output. Then carry out the design of experiments on the specified design space by the response surface method, and the actual system response of each set of experiments is obtained based on finite element simulation, and finally the approximate FIGURE 16 Design parameters of sharp tooth model of the system is obtained [29,30]. This paper adopts the second-order polynomial response surface model.…”

Section: Response Surface Modelmentioning

confidence: 99%

Investigation on flat torque‐angle characteristic of torque motor based on magnetic saturation of tooth tip

Meng

Zhu

Heng

et al. 2022

IET Power Electronics

View full text Add to dashboard Cite

The flat torque-angle characteristic of torque motor plays a decisive role in the control quality of electro-hydraulic servo and proportional valve. To solve the issue that the current wet-type torque motor for two-dimensional (2D) valve does not have flat torque-angle characteristic, a method for adjusting the flat torque-angle characteristic of torque motor for 2D valve based on magnetic saturation of tooth tip is proposed. Taking the current limited angle torque motor with rectangular tooth (TM-R) as an application example, the rectangular teeth on the stator are replaced by sharp teeth to form a novel torque motor with sharp tooth (TM-S), and the flat torque-angle characteristic can be obtained by constructing magnetic saturation of tooth tip. The variation trends of magnetic permeance in each magnetic saturation region of the tooth tip are analyzed. The torque-angle characteristics of TM-S and TM-R under different control currents are compared. Prototypes of TM-S and TM-R with optimized parameters are designed and manufactured, and special experimental benches are built for static and dynamic test. Experimental results are basically consistent with the theoretical analysis. The comparative study shows that the torque-angle characteristic of TM-R is a downward curve, while the torque-angle characteristic of TM-S is an approximate flat curve. The research validates the effectiveness of the proposed method, which can both realize the flat torque-angle characteristic and improve the dynamic response of torque motor. Finally, the proposed method can be further applied to other rotary and direct-acting electro-mechanical converter (EMC) with multi-tooth structure.

show abstract

Section: Response Surface Modelmentioning

confidence: 99%

Investigation on flat torque‐angle characteristic of torque motor based on magnetic saturation of tooth tip

Meng

Zhu

Heng

et al. 2022

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…Peng et al [28] calculated that the first-order modal frequency of the body-in-white and the local modal frequency of the roof were 19.62 Hz and 40.1 Hz, respectively. Chen et al [41] obtained the first-order bending modal frequency of the body-in-white and the local modal frequency of the front door are 49.67 Hz and 55.34 Hz, respectively. The maximum vibration displacement of the front door is at the junction of the door and the glass, and the modal frequency differs from the local modal frequency of the front door glass in this article by only 0.89 Hz.…”

Section: Modal Analysismentioning

confidence: 99%

Vehicle Interior Noise Prediction Based on Elman Neural Network

Zhou

Liu

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

Vehicle interior noise is an important factor affecting ride comfort. To reduce the noise inside the vehicle at the vehicle body design stage, a finite element model of the vehicle body must be established. While taking the first-order global modal of the body-in-white, the maximum sound pressure level of the target point in the vehicle, the body mass, and the side impact conditions into account, the thickness of the body panel as determined via sensitivity analysis is treated as the input variable, and the sample is determined by following the Hamersley experimental design. Specifically, the Elman neural network predicts the noise value in the vehicle, and a vehicle body structure optimization method that comprehensively considers NVH performance and side impact safety is established. The prediction errors of the Elman neural network algorithm were within 3%, which meets the prediction accuracy requirements. To achieve satisfactory restraint performance, the maximum sound pressure level of the target point in the vehicle is reduced by 5.92 dB, and the maximum intrusions of the two points on the B-pillar inner panel are reduced by 31.1 mm and 33.71 mm, respectively. The side impact performance is improved while the noise inside the vehicle is reduced. This study provides a reference method for multidisciplinary research aiming to optimize the design of vehicle body structures.

show abstract

“…There are three methods to study the vibration characteristics: simulation analysis method [15][16][17], theoretical analysis method [18] and experimental analysis method [19]. The simulation analysis method is to analyze the vibration characteristics after solving the characteristic value of the finite element analysis of the structure [20][21][22]. Therefore, it is widely used in analyzing vibration characteristics of complex mechanical systems.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Vibration Characteristics of Electro-hydraulic 3-UPS/S Parallel Stabilized Platform

Yuan

Wang

Pang

et al. 2023

Preprint

View full text Add to dashboard Cite

With the development of fluid power transmission and control and control technology, using electro-hydraulic driven can significantly improve the load-carrying capacity, stiffness, and control accuracy of the stabilization platforms. However, compared to mechanical driven, electro-hydraulic driven parallel stabilization platform needs to consider the stiffness and damping of the fluid, as well as the coupling effect between the fluid and the structure, making the modal and dynamic response characteristics of the mechanism more complex. Aiming at the above problems, taking the electro-hydraulic driven 3-UPS/S parallel stable platform as the research object, considering the hinge stiffness, the vibration characteristic equation of the mechanism was established by using the virtual work principle. Then the variation characteristics of natural frequency and vibration response with the position of mechanism were analyzed basing on the dynamic equation. Finally, the correctness of the model was verified by modal test and Runge-Kutta methods. This study can provide a theoretical basis for the dynamic design of electro-hydraulic driven parallel mechanisms.

show abstract

Structural Modal Analysis and Optimization of SUV Door Based on Response Surface Method

Cited by 7 publications

References 22 publications

Investigation on flat torque‐angle characteristic of torque motor based on magnetic saturation of tooth tip

Investigation on flat torque‐angle characteristic of torque motor based on magnetic saturation of tooth tip

Vehicle Interior Noise Prediction Based on Elman Neural Network

Analysis of Vibration Characteristics of Electro-hydraulic 3-UPS/S Parallel Stabilized Platform

Contact Info

Product

Resources

About