Low-frequency dynamic analysis of automotive door weather-strip seals

Stenti, Andrea; Moens, David; Sas, Paul; Desmet, Wim

doi:10.1016/j.ymssp.2007.11.021

Cited by 13 publications

(3 citation statements)

References 7 publications

(6 reference statements)

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“…These dynamic effects were not considered when the time domain fatigue analysis was applied [9]. The dynamic effects of structure were performed like lower arm [10,11] and door weather strip seals [12]. The dynamic behavior of structures was usually performed using modal analysis.…”

Section: Introductionmentioning

confidence: 99%

Vibration Fatigue Analysis of Carbon Steel Coil Spring under Various Road Excitations

Kong

Abdullah

Schramm

et al. 2018

Metals

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This paper presents the evaluation of frequency-based approach predicted spring using acceleration signals that were collected from various road conditions. Random loadings in the forms of acceleration are nominal and more flexible for vehicle components fatigue assessment. In this analysis, the strain time history of the spring and acceleration signals of the suspension strut was measured from three different road conditions. The acceleration signals were then transformed into power spectra density (PSD). PSD cycle counter, like Lalanne, Dirlik, and narrow band approach, was applied to obtain equivalent load cycles. The stress response was obtained through having the equivalent load cycles with a spring modal frequency response function (FRF) and different stress criterion, like absolute maximum principal and critical plane approaches. Then, the stress response was used to predict the spring fatigue life using stress-life (S-N) approach. The results revealed that the harshest road condition was the rural road where the spring with fatigue life of 4.47 × 107 blocks to failure was obtained. The strain predicted fatigue life was used to validate the frequency-based predictions using a conservative approach. It was found that the Dirlik approach has shown the closest results to the strain life approach, which suggested that the Dirlik approach could be used for spring fatigue life prediction with the acceptable accuracy.

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Section: Introductionmentioning

confidence: 99%

Vibration Fatigue Analysis of Carbon Steel Coil Spring under Various Road Excitations

Kong

Abdullah

Schramm

et al. 2018

Metals

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“…The sealing strip runs usually all around the perimeter of the car door. 12 The sealing strip provide sealing force when the door is closed, and the door needs to overcome this resistance during the closing process. The sealing strip generally has two parts: core and coreless.…”

Section: Test and Calculation Of Sealing Forcementioning

confidence: 99%

Experimental method research and miniature durability test-bench design of electric sliding door

Yao

et al. 2023

Advances in Mechanical Engineering

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With recent enhancements in vehicle electrification, electric sliding doors have received significant research attention; however, the testing methods for the sliding doors components need to be improved. Herein, according to the durability evaluation index of sliding doors, a miniaturized durability test bench is designed for the electronic lock system and sliding door power output mechanism assembly. The motion trajectory of the electronic lock system can be fitted as a circular arc curve through dynamic characteristics analysis; therefore, a four-bar linkage with a flexible link is used to simulate the trajectory. Through the finite element simulation method, the test-bench stress is calculated at room temperature and a high temperature (75°C); this facilitates the selection of an appropriate material (GCr15). This experimental method is an economical, reliable, and accurate scheme to standardize the durability test of the electronic lock system and power output mechanism assembly.

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“…The seal system of automotive door is made of sponge and/or dense rubber to fill the gap between the door and the door frame and plays a major role in determining the door closing energy [1]. A.Stenti et al [2], made a study on the seals, mainly focusing on the sound transmission characteristics of the joint. A testing report of Ford Motor Company suggested that the seal resistance comprised approximately 30%~50% of the force or energy to close door [3].…”

Section: Introductionmentioning

confidence: 99%

The Analysis of Automotive Door Seal Energy Consumption

Gao

2011

AMM

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The seal deformation of automotive door is caused by the door compression forces, including non-linear elastic force and non-linear damping force. The working principles of them are analyzed and a new simplified analysis model is built. Based on the Bernoulli equation and the law of conservation of mass, the mathematical models are established to calculate energy consumption of the seal system. According to the analysis results, the energy consumption of non-linear elastic force and non-linear damping force are respectively 84% and 16% of the total energy consumption of the seal system. At last, the calculation data is compared with the test data and the error is less than 5%, so the calculation method proposed in this paper is observed to be accurate.

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Low-frequency dynamic analysis of automotive door weather-strip seals

Cited by 13 publications

References 7 publications

Vibration Fatigue Analysis of Carbon Steel Coil Spring under Various Road Excitations

Vibration Fatigue Analysis of Carbon Steel Coil Spring under Various Road Excitations

Experimental method research and miniature durability test-bench design of electric sliding door

The Analysis of Automotive Door Seal Energy Consumption

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