Logical and physical simulation of heavy vehicle automation: a case study of the Lincoln Tunnel

1998 ◽  
Author(s):  
Laurence Audenaerd
Keyword(s):  
Physical Simulation ◽  
Heavy Vehicle ◽  
Vehicle Automation

Mathematical and Physical Simulation of Indoor Daylighting: A Case Study

1997 ◽  
Vol 26 (3) ◽  
pp. 129-137
Author(s):  
S. R. Bandyopadhyay ◽  
Biswanath Ray
Keyword(s):  
Physical Simulation

Quantitative Physical Simulation Research on Salt Structure: a Case Study of the Pre-Caspian Basin

2019 ◽  
Author(s):  
J. Ziyan ◽  
Z. Yajun ◽  
S. Yuping ◽  
C. Guangpo ◽  
L. Guobin ◽  
...  
Keyword(s):  
Physical Simulation ◽  
Caspian Basin ◽  
Simulation Research ◽  
Salt Structure

scholarly journals Application of Numerical and Physical Simulation to Design of the Best Manufacturing Technology for Fasteners

2015 ◽  
Vol 60 (1) ◽  
pp. 455-460 ◽  
Author(s):  
J. Kusiak ◽  
M. Skóra ◽  
Ł. Rauch ◽  
D. Szeliga ◽  
M. Pietrzyk
Keyword(s):  
Tool Wear ◽  
Numerical Simulations ◽  
Physical Simulation ◽  
Manufacturing Technology ◽  
Manufacturing Costs ◽  
Bainitic Steels ◽  
The Subject ◽  
Concrete Plates ◽  
New Generation

Abstract The development of the best manufacturing technology for fasteners was the subject of this work. Physical and numerical simulations were used to evaluate various technological variants. Possibility of application of new generation bainitic steels was considered, as well. Improvement of exploitation properties was the objective of the optimization having in mind tool wear and manufacturing costs as constraints. Several fasteners were investigated but results for three parts, including Allen screw, screw anchors used to carry concrete plates are presented as a case study. Industrial trials were performed and confirmed correctness of the designed manufacturing technology.

Heavy vehicle automation: transitioning from civilian to military applications

2001 ◽  
Author(s):  
James A. Misener ◽  
Steven E. Shladover ◽  
Dan Empey ◽  
Han-Shue Tan
Keyword(s):  
Heavy Vehicle ◽  
Military Applications ◽  
Vehicle Automation

scholarly journals Remanufacturing in the Heavy Vehicle Industry—Case Study of a Finnish Machine Manufacturer

2021 ◽  
Vol 13 (19) ◽  
pp. 11120
Author(s):  
Pasi Rönkkö ◽  
Mohammad Sayed Ayati ◽  
Jukka Majava
Keyword(s):  
Reverse Logistics ◽  
Empirical Data ◽  
Economies Of Scale ◽  
Relevant Literature ◽  
Heavy Vehicle ◽  
Vehicle Manufacturer ◽  
Machine Manufacturer ◽  
Global Operations

This study analyses remanufacturing operations of a Finnish heavy vehicle manufacturer with global operations. The company has remanufactured and refurbished certain components for a decade in a centralised remanufacturing and recycling centre in Finland, but it has encountered significant challenges, especially in reverse logistics. The company considers regional remanufacturing to decrease these disadvantages. The purpose of this study is to analyse the characteristics, challenges and benefits of regional remanufacturing by reviewing the relevant literature and analysing the empirical data, including a survey for international subsidiaries of the case company to determine regional needs. As a result, we have identified significant benefits, especially related to minimised logistics costs and better availability of the components, but also challenges, such as lack of resources, and insufficient economies of scale.

scholarly journals Forensic Engineering Tools and Analysis of Heavy Vehicle Event Data Recorders (HVEDRs)

2016 ◽  
Vol 33 (2) ◽  
Author(s):  
Jerry S. Ogden ◽  
Mathew Martonovich
Keyword(s):  
Commercial Vehicle ◽  
Heavy Vehicle ◽  
Restraint System ◽  
Event Data ◽  
Commercial Vehicles ◽  
Passenger Vehicles ◽  
Sequence Of Events ◽  
Event Recording ◽  
Forensic Engineering

Since the 1990s, domestic passenger vehicles have been equipped with increasingly more sophisticated supplemental restraint system event data recorders (EDRs) that have become more commonplace in collision analysis. Many collision analysts are aware that most heavy commercial vehicles are likewise equipped with heavy vehicle event data recorders (HVEDRs) that may trigger during a hard braking or sudden decelerationevent — or when the driver activates a signal to trigger an event to the system. Some heavy commercial vehicleengine manufacturers even provide an additional record of the last stop of the vehicle. Unfortunately, there areno uniform standards as to the information recorded or even the triggering criteria for an event regarding heavy commercial vehicles. HVEDR records oftentimes provide valuable information that assists the forensic engineer inanalyzing collision or failure events. This paper provides the forensic engineer with HVEDR engine manufacturer download coverage and tools needed (as of the presentation of this paper), and explores anomalies in event recording that the forensic engineer should be aware may exist. A case study pertaining to an HVEDR record of a commercial vehicle having a peculiar recording anomaly is presented. This paper outlines the process of how the anomaly was resolved and the process of plotting the sequence of events for courtroom presentation.

scholarly journals Evolution Law of Overburden Longitudinal Connected Fissures in a Shallowly Buried Coal Face with Thin Bedrock

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Housheng Jia ◽  
Kun Pan ◽  
Luyao Wang ◽  
Shaowei Liu ◽  
Mengxiong Fu ◽  
...  
Keyword(s):  
Physical Simulation ◽  
Field Measurements ◽  
Water Inflow ◽  
Coal Face ◽  
Rock Falls ◽  
Holding Power ◽  
Abnormal Increase ◽  
Thin Bedrock ◽  
Main Factor

Longitudinal connected fissures in a shallowly buried coal face with thin bedrock are the main factor causing sand-burst accidents, water-burst accidents, and abnormal increases in water inflow. To understand the evolution of longitudinal connected fissures and propose method for controlling such fissures, 3-1 Coal of the Jinjie Coal Mine in Shendong Coal Group, China, was used as a case study. Physical simulation, numerical simulation, field measurements, and other measures were carried out to analyze thoroughly the opening and closure of fissures. At the same time, the stage characteristics of fissures evolution process are also obtained. The results indicate that when periodic weighting occurs, a longitudinal connected fissure starts to open. As the coal face moves on, the fissure expands gradually with the dynamic changes in horizontal force and rock dislocation; when the expansion reaches its limit, the key rock falls and the longitudinal connected fissure rapidly closes. With the advent of the next periodic weighting, the longitudinal connected fissure compacts further and the next longitudinal connected fissure appears. The formation of longitudinal connected fissures is described with reference to three factors: the advancement speed of the coal face, the holding power of the hydraulic support, and the filling degree of the goaf area, all of which can be easily controlled by engineering means. This study provides a basis for control of sand-burst accidents, water-burst accidents, and abnormal increase in water inflow in a shallow coal face with thin bedrock.

scholarly journals Heavy Vehicle Automation: Human Factors Lessons Learned

2015 ◽  
Vol 3 ◽  
pp. 2945-2952 ◽  
Author(s):  
C. Nowakowski ◽  
Steven E. Shladover ◽  
H.-S. Tan
Keyword(s):  
Human Factors ◽  
Lessons Learned ◽  
Heavy Vehicle ◽  
Vehicle Automation

scholarly journals Perencanaan Tebal Perkerasan Jalan Logging di Kabupaten Penajam, Kalimantan Timur. (Hal. 47-57))

2018 ◽  
Vol 4 (2) ◽  
pp. 47
Author(s):  
Mohammad Algi Brilianto ◽  
Silvia Sukirman ◽  
Welly Pradipta
Keyword(s):  
Growth Rate ◽  
Heavy Vehicle ◽  
Vehicle Traffic ◽  
The Road ◽  
East Kalimantan ◽  
On The Road ◽  
Pavement Thickness

ABSTRAKPerkerasan merupakan salah satu komponen prasarana pada kegiatan logging yang harus didesain agar dapat melayani lalu-lintas kendaraan berat. Metode Austroads 2006 dan Bina Marga 2017 merupakan panduan dalam perencanaan tebal perkerasan jalan logging. Studi kasus untuk penelitian ini dilakukan di Kabupaten Penajam, Kalimantan Timur. Berdasarkan data yang diperoleh dari konsultan perencana, niilai CBR pada ruas jalan rencana dibagi menjadi empat segmen dengan nilai CBR pada segmen 1 = 3%, segmen 2 = 9%, segmen 3 = 29% dan segmen 4 = 9%. Perencanaan dilakukan dengan umur rencana 10 tahun dan tingkat pertumbuhan 3%. Jenis perkerasan yang digunakan untuk kedua metode berupa batu pecah. Hasil perencanaan tebal perkerasan menggunakan metode Austroads 2006 untuk segmen 1 = 480 mm, segmen 2 = 320 mm, segmen 3 = 160 mm dan segmen 4 = 320 mm. Hasil perencanaan tebal perkerasan menggunakan metode Bina Marga 2017 untuk segmen 1 = 480 mm, segmen 2 = 260 mm, segmen 3 = 140 mm dan segmen 4 = 260 mm.Kata kunci: perencanaan tebal perkerasan jalan logging  ABSTRACTPavement is one of the infrastructure components in logging activities that must be designed in order to serve heavy vehicle traffic. Austroads 2006 method and Bina Marga 2017 methodis a guide to design the thickness of logging pavement. Case study for this research was conducted in Penajam District, East Kalimantan. Based on the data obtained from the planner consultant, the CBR value on the road plan is divided into four segments with CBR value in segment 1 = 3%, segment 2 = 9%, segment 3 = 29% and segment 4 = 9%. The planning is done with 10 years and 3% growth rate. Types of pavement used for both methods is granular. The results of pavement thickness planning using Austroads 2006 method for segment 1 = 480 mm, segment 2 = 320 mm, segment 3 = 160 mm and segment 4 = 320 mm. The results of pavement thickness planning using Bina Marga 2017 method for segment 1 = 480 mm, segment 2 = 260 mm, segment 3 = 140 mm and segment 4 = 260 mm.Keywords: thickness design of pavement logging

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