ERROR ESTIMATE OF ACCELEROMETER MEASURING ACCELERATION OF THE CAR ON THE ROAD WITH LONGITUDINAL SLOPE

Author(s):  
Тесля ◽  
V. Teslya ◽  
Абрамов ◽  
D. Abramov

The estimation of the magnitude of the error of accelerometer along sensitive axis, parallel to the longitudinal axis of the vehicle, with its accelerated movement on the road with longitudinal slope is done. An amendment to the testimony of the accelerometer, which allows reducing measurement error to acceptable values introduced


2014 ◽  
Vol 1046 ◽  
pp. 187-190
Author(s):  
Kai Guo Qian

Vehicle rollover refers to a dangerous lateral movement of a vehicle in contact with the ground when it rotates around its longitudinal axis to a certain angle degree or greater angle during moving. There are many factors that could cause the vehicle's rollover, including automotive structures, road conditions and the driver's condition. vehicle rollover can be divided into two categories, one category is tripped rollover (trPPiedorllover), the other is a rollover (maneuve curve caused by motion: niduecdorllove) The former refers to the generation of lateral slip when the vehicle is moving, and the obstacle on the road surface collides sideways with it its "tripped" The latter refers to the rollover caused by the vertical reaction force inside the wheels of the vehicle reaching to zero because sideways acceleration of the has exceeded a certain limit when the vehicle moves on the road (including a lateral ramp). In this paper, only the rollover caused by curvilinear motion will be studied.



2021 ◽  
Vol 264 ◽  
pp. 05030
Author(s):  
Shaukat Khakimov ◽  
Erkin Fayzullaev ◽  
Azimjon Rakhmonov ◽  
Rustam Samatov

The article discusses the influence of the road longitudinal slope on variation in reaction forces on the wheels of the road train. The description of the longitudinal slope of the road and methods of its determination are given. The design diagram of the forces and moments acting on the road train during its movement uphill and downhill is presented. Equations for calculating the change in the load on the three axles of the road train, depending on the longitudinal slope of the road and the mode of movement, are presented. Based on the calculation results, graphs were constructed to illustrate the change in loads on three axles of the road train. The results show that the changes in the normal reactions on the front axle of the road train are significant, affecting the braking properties and driving safety of the vehicle. The scheme for calculating the variation in loads on the axles of a road train can be used to automatically adjust the braking forces between the wheels depending on the loads and thereby ensure traffic safety.



2018 ◽  
Vol 1 (4) ◽  
pp. 929-940
Author(s):  
Matjakriandi Matjakriandi ◽  
Alfiansyah Yulianur ◽  
Muhammad Isya

Abstract: The road is a transportation infrastructure that is essential for humans. The road connects a community of people in a region with other regions, one important aspect for highway construction was securing the road from the water, either from rain or from a side-street drainage impact on the road surface damage. Bener Meriah district, a mountainous region with an altitude of 100 meters above sea level up to 2,500 meters, with a fairly high rainfall. Road conditions on the slopes and foothills affect the slope of the road longitudinal slope and drainage in the rainy season the road so much going drainage is not functioning properly. Water flows and puddles on the pavement as well as the water flows out of the drainage caused by slope which was great so happens scouring the drainage, plus more water falling from the slopes directly to the pavement without any treatment, for it was necessary to do research that aims to identify capacity of the existing road drainage network, knowing and planning network capacity as well as the road drainage slope drainage is needed so that the roads are not inundated by rain water discharge. The research was conducted on roads Pondok Baru - Permata on Sta.4 + 200 s / d Sta10 + 522. The method used in this research was the average algebra as well as to get a discharge plan and dimension using numerical equations rational modification with a system of trial and error, to come to the rain plan period of 5 years is 184 mm. Existing drainage conditions based on calculations obtained an average drainage discharge  1.52 m3 / sec and the discharge count  0.52 m3 / sec flow rate of water drainage on average at 7.54 m / sec speeds exceeding 1.5 license m / sec. Having calculated back then obtained an average discharge chute  0.519 m3 / sec and the discharge count  0,517 m3 / sec at the speed of average water flow of 1.31 m / sec, drainage on roads Pondok Baru - Permata diredesign necessary. Abstrak: Jalan merupakan infrastruktur transportasi yang sangat penting bagi manusia. Jalan menghubungkan suatu komunitas masyarakat di suatu wilayah dengan wilayah lain, salah satu aspek penting untuk konstruksi jalan raya adalah mengamankan jalan dari air, baik dari air hujan maupun dari drainase samping jalan yang berdampak terhadap kerusakan permukaan jalan. Kabupaten Bener Meriah merupakan daerah pegunungan dengan ketinggian dari permukaan laut 100 meter sampai dengan 2.500 meter, dengan curah hujan yang cukup tinggi. Kondisi jalan yang berada di lereng dan kaki gunung mempengaruhi terhadap kemiringan memanjang jalan dan kemiringan drainase jalan sehingga pada musim hujan banyak terjadi drainase tidak berfungsi dengan baik. Air mengalir dan tergenang di perkerasan jalan serta air mengalir dengan cepat pada drainase yang disebabkan oleh slope yang besar sehingga terjadi gerusan pada drainase, ditambah lagi air jatuh dari lereng  langsung ke perkerasan jalan tanpa ada penanganan, untuk hal itu perlu dilakukan penelitian yang bertujuan untuk mengidentifikasi kapasitas jaringan drainase jalan yang ada, mengetahui dan merencanakan kapasitas jaringan drainase jalan serta drainase lereng yang dibutuhkan agar jalan tidak tergenang oleh debit air hujan. Penelitian ini di lakukan pada ruas jalan Pondok Baru – Permata pada Sta.4+200 s/d Sta10+522. Metode yang dipakai dalam penelitian ini adalah metode rata-rata aljabar serta untuk mendapatkan debit rencana dan dimensi menggunakan metode rasional modifikasi persamaan numeris dengan sistem trial and error, didapat untuk hujan rencana periode 5 tahun yaitu 184 mm. Kondisi drainase eksisting berdasarkan perhitungan didapat debit drainase rata-rata QS  1,52 m3/detik dan  debit hitung QT 0,52 m3/detik dengan kecepatan aliran air rata-rata pada drainase 7,54 m/detik yang melebihi kecepatan izin 1,5 m/detik. Setelah dihitung kembali maka didapatkan debit saluran rata-rata QS  0,519 m3/detik dan debit hitung QT 0,517 m3/det dengan kecepatan aliran air rata-rata 1,31 m/detik, drainase pada ruas jalan Pondok Baru – Permata perlu dilakukan desain.



ASHA Leader ◽  
2006 ◽  
Vol 11 (5) ◽  
pp. 14-17 ◽  
Author(s):  
Shelly S. Chabon ◽  
Ruth E. Cain


2009 ◽  
Vol 43 (9) ◽  
pp. 18-19
Author(s):  
MICHAEL S. JELLINEK
Keyword(s):  
The Road ◽  


PsycCRITIQUES ◽  
2013 ◽  
Vol 58 (31) ◽  
Author(s):  
David Manier
Keyword(s):  
The Road ◽  


PsycCRITIQUES ◽  
2014 ◽  
Vol 59 (52) ◽  
Author(s):  
Donald Moss
Keyword(s):  
The Road ◽  


1992 ◽  
Author(s):  
Joanne E. Callan ◽  
Keyword(s):  
The Road ◽  






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