Test Stand for Experimental Crash Tests at Low Speeds

Frej, Damian; Jáskiéwicz, Marek

doi:10.1016/j.trpro.2021.07.152

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…These results confirm the adverse effect of mounting an adaptation device on top of the steering wheel (W1) at a wide range of collision speeds. This confirms the validity of regulations included in Regulation No 21 of the Economic Commission for Europe of the United Nations [4], which characterize the area of occupant head impact during the road collision. Model research which was carried out shows an important increase in head injury risk in AIS2-4 scale which is portrayed in Figure 10.…”

Section: Figure 7 Head Acceleration During the Collision For Various ...supporting

confidence: 79%

Hazards arising during road accidents in cases of vehicle adaptation for the person with special needs

Prochowski

Ziubiński

Mantur

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Independent transport of people with special needs often requires the adaptation of a motorcar to increase the comfort of use and enable proper operating of a vehicle. This adaptation involves, for example, mounting special devices on the steering wheel. This violates the so-called survival zone, defined by (UN/ECE) regulation No. 21. and can deteriorate the occupant’s safety. This study shows the risk for the driver caused by an additional knob mounted on a steering wheel. Model tests were prepared and carried out with the use of the PC-Crash program environment. The simulations of the frontal collisions into the obstacle were computed and the dynamic loads affecting the driver with and without additional adaptation elements on the steering wheel were assessed. Obtained results portray that the impact of the driver’s head into the adaptation element during the collision is possible. This causes a visible increase in the HIC15 head injury indicator by up to 80% for a collision speed of 65 km/h compared to a car without an adaptation device. It was found that the risk of head injury is on average 15% greater compared to the variant without an adaptation device.

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Section: Figure 7 Head Acceleration During the Collision For Various ...supporting

confidence: 79%

Hazards arising during road accidents in cases of vehicle adaptation for the person with special needs

Prochowski

Ziubiński

Mantur

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Інерційні вимірювальні модулі знаходять також застосування у різноманітних вимірювальних комплексах, за допомогою яких досліджуються властивості об'єктів при ударних випробуваннях, наприклад, при проведенні краш-тестів автомобілів чи посадкових модулів [5].…”

Section: вступunclassified

Застосування Дкп-Фільтрації Для Обробки Сигналів Інерційного Вимірювального Модулю

Abramov

Abramova

Abramov

2023

aktt

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This article is devoted to the analysis and processing of signals of inertial measuring modules used as part of inertial navigation systems or in research measuring complexes for conducting shock tests. The modules have a set of sensors for measuring the speed of the object, its orientation in space, the gravitational forces with which it moves, as well as the magnetic field surrounding it. Using the example of a typical inertial measurement module WT901SDCL, it is shown that the signals of acceleration, angular velocity, and angular position generated by the module have a certain fluctuation component, which deteriorates the accuracy of determining the estimated parameters, as well as to the appearance of an accumulated error in the determination of coordinates of the inertial navigation system. In such conditions, it is advisable to use secondary processing methods, namely, filtering methods. Since the information component of the signals of the inertial measurement module has significant dynamics, one of the key requirements for the filtering method is its preservation. However, a filter is also required to effectively suppress the fluctuation component. Among the currently existing filters, the filter based on discrete cosine transform (DCT-filter) has the best trade-off according to these requirements. It is shown that the use of this filter allows reducing the intensity of the noise component in the information signal by the average of 1.4 times the value of the mean square error and, accordingly, to reduce the measurement errors of physical parameters. Simultaneously, the shape of the signals after applying the DCT-filter remains almost unchanged, all sharp dynamic changes in the signal are preserved, and the absolute levels of the signals also remain the same. Thus, the use of DCT-filtering for signal post-processing in inertial measurement modules can be considered quite reasonable.

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Combination of frustra shapes with cross sections and trigger circles for crash box design to absorb energy

Nasution

Rejab

Siregar

et al. 2023

Materials Today: Proceedings

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Test Stand for Experimental Crash Tests at Low Speeds

Cited by 3 publications

References 12 publications

Hazards arising during road accidents in cases of vehicle adaptation for the person with special needs

Hazards arising during road accidents in cases of vehicle adaptation for the person with special needs

Застосування Дкп-Фільтрації Для Обробки Сигналів Інерційного Вимірювального Модулю

Combination of frustra shapes with cross sections and trigger circles for crash box design to absorb energy

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