Numerical analysis and optimal design for new automotive door sealing with variable cross-section

Zhu, Weiguang; Wang, Jie; Lin, Peijie

doi:10.1016/j.finel.2014.06.012

Cited by 21 publications

(7 citation statements)

References 12 publications

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“…According to the SAE J1400-based sound insulation method and material property standard, 21 the sound transmission loss was experimentally evaluated using a sound transmission loss suite, which is shown in Figure 16. The volumes of the reverberation and anechoic rooms are 268 m 3 and 1200 m 3 , respectively. The anechoic room meets the Class 1 accuracy for frequencies ranging from 150 Hz and 10 kHz, adhering to ISO 3745.…”

Section: Sound Insulation Modeling and Analysis Of Deformed Sealmentioning

confidence: 99%

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Sound transmission modeling and numerical analysis for automotive seal considering non-uniform compression

Zhu

Zhong

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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Automotive metal door panels and nonmetallic seals have complicated nonlinear interactions in their narrow mating sections, leading to non-uniform compression and complicating the sound transmission mechanism. Therefore, a new sound transmission modeling methodology and numerical analysis is developed for a refined sealing system by considering the geometrical boundaries and the non-uniform compression load. Nonlinear analysis is performed to obtain the geometrical parameters of the deformed seal, which are later input to the subsequent numerical acoustic model, by varying the compression ratios at different door locations under quantified nonlinear metal–seal interaction boundary conditions. A numerical prediction model of the sound transmission loss is constructed considering the deformed seal geometry using a double-wall-panel sound transmission model. Finite-element analysis and an infinite-element method are combined. Sound transmission loss experiments are conducted by varying the compression ratios of the seal. Experimental results are in good agreement with the numerical analysis. Furthermore, the sound transmission loss of the incident sound source with respect to a wide range of frequencies is numerically predicted for different compression magnitudes and directions using the verified methodology. This shows that the presented model and numerical methodology is valuable for optimizing the sound transmission loss performance of automotive door seals.

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Section: Sound Insulation Modeling and Analysis Of Deformed Sealmentioning

confidence: 99%

“…The seal is compressed to fill the narrow gaps between the door and the body frame when the door is closed, thus insulating the cabin from water, dust, and sound. 1–3…”

Section: Introductionmentioning

confidence: 99%

Sound transmission modeling and numerical analysis for automotive seal considering non-uniform compression

Zhu

Zhong

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Failed sealing structure exposes the electronic equipment and devices to the harsh environment, which will not only cause device failure, ignition, insulation resistance reduction, corrosion and other phenomena due to water leakage, but also seriously affect the service life and product image of radar, and increase the workload of maintenance. [1][2] Based on an engineering application example, the modeling and calculation of the stress distribution of the case door sealing structure of the antenna array are carried out in this paper. The value of maximum stress of double-peaked sealing ring and stress distribution of case door panel are obtained by finite element analysis.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of sealing structure of vehicular radar case door

Zhang

Hua

2022

J. Phys.: Conf. Ser.

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The quality of antenna array environment control technology directly affects the reliability and service life of vehicular radar. The structure design of case door sealing is an important part of the environmental control technology of vehicular radar. The stress distribution analysis of case door sealing structure of vehicular radar antenna is carried out in this paper. Maximum stress of double-peaked sealing ring and stress distribution and deformation of case door panel are investigated through finite element analysis based on ABAQUS. In order to increase the reliability of sealing structure, the section size of double-peaked sealing ring and the spacing length of fasteners are optimized by the way of co-simulation optimal design method using ISIGHT. Through radial basis function neural network surrogate model, which is built based on Latin hypercube sample algorithm, the sensitivity of each optimization variable is analyzed. Meanwhile the optimal section size of double-peaked sealing ring and spacing length are obtained through non-dominated sorting genetic algorithm.

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“…Song et al 32 used artificial neural networks to conduct aerodynamic design optimization of rear body shapes of a sedan automobile to minimize the drag. Zhu et al 33 used back-propagation neural networks to design a new automotive door sealing.…”

Section: Introductionmentioning

confidence: 99%

Design optimization of an automobile torque arm using global and successive surrogate modeling approaches

Acar

Tüten

Güler

2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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The design of lightweight automotive structures has become a prevalent practice in the automotive industry. This study focuses on design optimization of an automobile torque arm subjected to cyclic loading. Starting from an available initial design, the shape of the torque arm is optimized for minimum weight such that the fatigue life of the torque arm does not fall below that of the initial design and the maximum von Mises stress developed in the torque arm does not exceed that of the initial design. The stresses are computed using ANSYS finite element software, and the fatigue life is calculated using the Smith–Watson–Topper model. Surrogate-based optimization approach is used to reduce the computational cost. Optimization results based on global surrogate modeling and successive surrogate modeling approaches are compared. It is found that the successive surrogate modeling approach results in 28.7% weight reduction for the torque arm, whereas the global surrogate modeling approach results in 25.7% weight saving for the torque arm.

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Numerical analysis and optimal design for new automotive door sealing with variable cross-section

Cited by 21 publications

References 12 publications

Sound transmission modeling and numerical analysis for automotive seal considering non-uniform compression

Sound transmission modeling and numerical analysis for automotive seal considering non-uniform compression

Optimal design of sealing structure of vehicular radar case door

Design optimization of an automobile torque arm using global and successive surrogate modeling approaches

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