Time-domain Transfer Path Analysis for Transient Phenomena Applied to Tip-in/Tip-out (Shock &amp; amp; Jerk)

Shiozaki, Hirotaka; Geluk, Theo; Daenen, Frank; Iwanaga, Yasuhiro; Herbruggen, Joris Van

doi:10.4271/2012-01-1545

Cited by 10 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jayaraman et al (2015) had highlighted that response delays provided a critical index of the drivability evaluation in tip-in condition. The jerk was an important index of vehicle comfort, as found in the studies by Guclu and Metin (2009) and Shiozaki et al (2012). The longitudinal acceleration of the vehicle by operational transfer path and separation had been analyzed by Hibino et al (2016), and they found that the vehicle vibrates triggered by backlash.…”

Section: Introductionmentioning

confidence: 91%

Application of fuzzy dynamic weights drivability evaluation model in tip-in condition

Huang

Liu

2018

Journal of Vibration and Control

View full text Add to dashboard Cite

Only the subjective or objective method is employed to calculate the index weight in the evaluation of drivability, which makes the evaluation result less accurate. In this paper, a drivability evaluation model was proposed on the basis of fuzzy dynamic weights, and the drivability was evaluated in tip-in conditions. The evaluation indexes affecting drivability in tip-in conditions were determined using multi-dimensional analysis. The dynamic weight was built using an improved analytic hierarchy process and improved entropy method in accordance with the principle of “function driving and difference driving.” The fuzzy matrix was built by drawing upon the improved membership function of the evaluation index. Finally, the drivability evaluation model of the tip-in condition was built with dynamic weight and fuzzy matrix. The evaluation model was employed to evaluate the drivability of the vehicle, which obtained the drivability score. As the experiment results suggest, the evaluation model is accurate and effective in comparison with the real score and the score obtained from the fuzzy analytic hierarchy process. The evaluation model is employed to formulate a control strategy for a vehicle that will allow better drivability. Besides, the method makes the performance development of the vehicle more knowledgeable and agile.

show abstract

Section: Introductionmentioning

confidence: 91%

Application of fuzzy dynamic weights drivability evaluation model in tip-in condition

Huang

Liu

2018

Journal of Vibration and Control

View full text Add to dashboard Cite

show abstract

“…Among the model-based methods introduced, the deconvolution method has received significant attention in the literature. Two main attitudes of the deconvolution method are the time-domain [1,2,24,25] and the frequency-domain approach [26]. In [23], a comparison is made between the results of two time-domain strategies and those of a frequency-domain approach in order to determine the pros and cons of each method.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Impact Force Identification on a Multi-Storey Tower Structure Using Different Transducers

Kalhori

Tashakori²,

Halkon

2021

Vibration

View full text Add to dashboard Cite

This paper presents the identification of both location and magnitude of impact forces applied on different positions of a multi-storey tower structure using different types of transducers, i.e., an accelerometer, a laser Doppler vibrometer, and a triangulation displacement sensor. Herein, a model-based inverse method is exploited to reconstruct unknown impact forces based on various recorded dynamic signals. Furthermore, the superposition approach is employed to identify the impact location. Therein, it is assumed that several impact forces are applied simultaneously on potential locations of the multi-storey tower structure, while only one impact has non-zero magnitude. The purpose is then to detect the location of that non-zero impact. The influence of using different hammer tip materials for establishing the transfer function is investigated, where it is concluded that the hammer with a harder tip leads to a more accurate transfer function. An accuracy error function is proposed to evaluate the reconstruction precision. Moreover, the effect of sensor type and location on the accuracy of the reconstruction is studied, where it is shown that the proximity between the impact and sensor locations is a dominant factor in impact force reconstruction. In addition, the efficacy of using different transducers is studied for the impact localization, where it is demonstrated that reducing the degree of under-determinacy by using a combination of system responses of the same type can improve the localization accuracy.

show abstract

“…The frequencydomain method has limitations in the nonstationary and transient cases. Therefore, time-domain method which is based on the kinetic equation and the Duhamel integral equation has become the main focus [8][9][10][11]. A discrete linear system equation can be obtained as y = f with the discretization of Duhamel integral equation [12], where denotes the system matrix.…”

Section: Introductionmentioning

confidence: 99%

A New Method for Optimal Regularization Parameter Determination in the Inverse Problem of Load Identification

Gao

2016

Shock and Vibration

View full text Add to dashboard Cite

According to the regularization method in the inverse problem of load identification, a new method for determining the optimal regularization parameter is proposed. Firstly, quotient function (QF) is defined by utilizing the regularization parameter as a variable based on the least squares solution of the minimization problem. Secondly, the quotient function method (QFM) is proposed to select the optimal regularization parameter based on the quadratic programming theory. For employing the QFM, the characteristics of the values of QF with respect to the different regularization parameters are taken into consideration. Finally, numerical and experimental examples are utilized to validate the performance of the QFM. Furthermore, the Generalized Cross-Validation (GCV) method and theL-curve method are taken as the comparison methods. The results indicate that the proposed QFM is adaptive to different measuring points, noise levels, and types of dynamic load.

show abstract

Time-domain Transfer Path Analysis for Transient Phenomena Applied to Tip-in/Tip-out (Shock & amp; Jerk)

Cited by 10 publications

References 3 publications

Application of fuzzy dynamic weights drivability evaluation model in tip-in condition

Application of fuzzy dynamic weights drivability evaluation model in tip-in condition

Experimental Study on Impact Force Identification on a Multi-Storey Tower Structure Using Different Transducers

A New Method for Optimal Regularization Parameter Determination in the Inverse Problem of Load Identification

Contact Info

Product

Resources

About