International Journal of Transportation Engineering and Technology

Volume 7, Issue 4, December 2021

  • The Vibration Characteristics of Diesel Engine Cylinder Piston Rings Under Different Wear

    Yongchao Cheng, Yaofei Li, Miao Zhang, Haihua Deng, Shuai Wang

    Issue: Volume 7, Issue 4, December 2021
    Pages: 92-96
    Received: Jul. 16, 2021
    Accepted: Oct. 25, 2021
    Published: Nov. 05, 2021
    Abstract: In this paper, Through the experimental research on the wear of cylinder liner and piston ring of diesel engine under different forms, The purpose is to study the vibration law of piston ring of cylinder liner of diesel engine under different wear conditions, and obtain the vibration law through vibration signal analysis, which provides theoretical... Show More
  • Extremely Fast “Solution” to the Large-Scale and Very Large-Scale Vehicle Routing Problem

    James Riechel

    Issue: Volume 7, Issue 4, December 2021
    Pages: 97-103
    Received: Oct. 21, 2021
    Accepted: Nov. 08, 2021
    Published: Nov. 17, 2021
    Abstract: A solution to the vehicle routing problem (VRP) is presented that takes only quadratic space, O(n2), and quadratic time, O(n2), if n is the number of stops on a route. The input is assumed to be a list of stops of length n in longitude, latitude format. The output is an origin-destination (OD) matrix of size O(n2), which takes O(n2) time to build. ... Show More
  • Impacts of Terrorism and Piracy on Maritime Activities: An Exploratory Study

    Donatus Eberechukwu Onwuegbuchunam, Kenneth Okechukwu Okeke, Moses Olatude Aponjolosun, Chinemerem Igboanusi

    Issue: Volume 7, Issue 4, December 2021
    Pages: 104-109
    Received: Sep. 02, 2021
    Accepted: Sep. 22, 2021
    Published: Nov. 25, 2021
    Abstract: The international community is paying more and more attention to the activities of terrorists and pirates, which have greatly hindered the flow of international seaborne trade and other maritime activities. Many national governments have implemented certain security policies to address the twin problem of terrorism and piracy with minimal results a... Show More
  • Application of Artificial Intelligence in Ship Integrated Navigation System

    Ning Li

    Issue: Volume 7, Issue 4, December 2021
    Pages: 110-117
    Received: Nov. 11, 2021
    Accepted: Nov. 22, 2021
    Published: Dec. 11, 2021
    Abstract: With the continuous development of navigation, modern ships put forward higher requirements for the accuracy, reliability and intelligence of navigation system. Aiming at the problems existing in the existing ship navigation system, such as insufficient navigation information fusion accuracy, increasingly important navigation safety guarantee and i... Show More