In the second direction, accompanying this outdoor ex­ posure, will be the standard laboratory tests on these same materials after they have been subjected to freezing and thaw­ ing, wetting and drying. Such laboratory work will, when compared to the outdoor experiment, tell us whether or not it is necessary to go through the actual construction of a test road in order to find out what may othe...

In order to improve the accuracy and comprehensiveness of asphalt pavement performance evaluation, a evaluation model based on warm mixed recycled was proposed. Based indexes such as quality, damage, structure bearing capacity, skid resistance, rutting comprehensive performance, system established. According standard numerical characteristics index, subjection function is constructed. The trape...

As the assessment of pavement performance has considerable repercussions for construction quality roads, study procedure used is extremely critical. Riding index (RQI), condition (PCI), structure strength (PSSI), skid resistance (SRI), and antirutting (ARI) are selected as indexes performance. Then, entropy weight-variable fuzzy sets model introduced. Second, a relative membership degree matrix...

The control of planetary rovers, which are high performance mobile robots that move on deformable rough terrain, is a challenging problem. Taking lateral skid into account, this paper presents a rough terrain model and nonholonomic kinematics model for planetary rovers. An approach is proposed in which the reference path is generated according to the planned path by combining look-ahead distanc...

Differentially driven skid-steering vehicles are often considered for navigation in outdoor terrains. However, the control of such vehicles is challenging because the wheels must skid laterally to follow a curved path, and motion stability can be lost as a result of excess skidding due to the position of the instantaneous center of rotation (ICR). To accommodate for the potential loss of stabil...

In the paper, a mathematical model assembling a "driver-mobile vehicle-road environment" system and capable of simulating the process of mobile vehicles skid in traction movement mode is proposed. The usage of non-linear drift models allows the development of efficient algorithms for mobile vehicles dynamic stabilization systems. INTRODUCTION The traction loss between the vehicle and the road a...

The Cryogenic Carbon CaptureTM (CCC) process is a retrofit, post-combustion technology that desublimates CO2 in the flue gas, separates the resulting solid from the remaining light gases, pressurizes the solid CO2, melts the CO2 and warms the light gas, and completes the CO2 pressurization with liquid CO2. This skid-scale CCC system has demonstrated successful carbon capture of 90–99% from simu...

In this paper motion analysis on a winding stair-climbing is investigated using our proposed rotational arm type of robotic wheelchair. For now, the robotic wheelchair is operated in an open mode to climb winding stairs by a dynamic turning, therefore, the dynamics model is required to ensure a passenger’s safety. Equations of motion based on the skid-steering analysis are developed for the tra...