Nowadays, the increase in heavy freight rail transport and high-speed train (HST) operations has encouraged scientists to investigate dynamic response of structures under moving load using analytically numerically computational methods. In this study, analyse vibration structure, been modelled as continuous Euler-Bernoulli elastic beam system. The effects some basic parameters such track founda...

For multi-axle distributed drive (MADD) vehicles, the complexity of longitudinal dynamics control system increases with number driven wheels, which presents a huge challenge to multi-motor vehicle more than four wheels. To reduce complexity, this paper proposes coordinated slip algorithm using hierarchical linear quadratic regulator (HLQR) scheme for 12 × MADD vehicle. The 12-wheel driving is d...

In the identification of bridge damage in series deflection-affecting lines, noise signals due to axle coupling often occur. Removing these has become a key technique for effectively identifying damage. Taking main line overpass project Fuzhou City Fujian Province as an example, we collected deflection data by using HPON-X target-free deflectometer and used YOLOv3 algorithm deep learning vehicl...

It is a well-recognized fact that our pavement design procedures are inadequate in general and seriously lacking in many particulars. The fact that this statement can be applied on a county, state or national basis is little consolation to those in Indiana who must design and build pavements, for ever-changing traffic conditions, in such mileage and at such unit costs compared to the funds avai...

A simple method for studying operant wheel running in rats. The present report describes an operant running device for rats. The apparatus makes use of an activity wheel driven by a small electric motor. The motor is started by a bar press; once activated, the wheel turns for 3-30 sec. depending on the setting of a timing device. The system is well suited to long term studies of activity patter...

Vehicles are critical living loads to bridge structure; thus, identifying vehicle is very important for structural health monitoring and safety evaluations. This paper proposed a load identification method based on an optimal combined strain influence line. Firstly, two types of gauges were arranged at the lower edge deck monitor response when vehicles cross deck. One type sensor was installed ...

Pseudorotaxanes from self-assembly of two crown ether-based cryptand wheels and a 1,2-bis(pyridinium) ethane derivative axle were prepared.