Abstract Directional drilling is a common and essential procedure of major extended reach operations. With the development directional technologies, percentage recoverable oil production has increased. However, its challenges, like real-time bit steering, tools selection control, are main barriers leading to low efficiency high nonproductive time. The fact inspires this study. Our work aims con...

In this paper, the effects of roll center height of McPherson suspension mechanism on dynamic behaviour of a vehicle are first studied, and then the optimum location of roll center of this suspension system is determined for a conceptual Class A vehicle. ADAMS/Car software was used for the analysis of vehicle dynamic behaviour in different positions of suspension roll center. Next, optimization...

Abstract Vehicle braking stability performance can improve the safety of vehicle driving during a braking. However, some parameters structure impact on stability, characteristic law relevant is ignored. A simulation model established using software CarSim. The included in system, suspension, steering mechanism, system. wheelbase, and height centre mass analysed. concluded. Based law, ideal obta...

This paper presents an active steering system designed to ensure both the curving performance and running stability of a vehicle. Electro-hydraulic actuators installed in place anti-yaw dampers generate yaw moment between carbody bogie. The detects curves with gyroscopes mounted on configuration enables reduction wheel/rail lateral force without requiring complicated mechanical links bogies. al...

HYPOTHESIS Insertion forces can be reduced by magnetically guiding the tip of lateral-wall cochlear-implant electrode arrays during insertion via both cochleostomy and the round window. BACKGROUND Steerable electrode arrays have the potential to minimize intracochlear trauma by reducing the severity of contact between the electrode-array tip and the cochlear wall. However, steerable electrode...

The external forces applied in swimming starts have been often studied, but using direct analysis and simple interpretation data processes. This study aimed to develop a tool for vertical and horizontal force assessment based on the swimmers' propulsive and structural forces (passive forces due to dead weight) applied during the block phase. Four methodological pathways were followed: the exper...

Computational steering allows researchers to monitor and manage long running, resource intensive applications at runtime. Limited research has addressed high performance computational steering. High performance in computational steering is necessary for three reasons. First, a computational steering system must act intelligently at runtime in order to minimize its perturbation of the target app...

According to the independence, accuracy and controllability of the driving/braking torque of the distributed drive electric vehicle, a control strategy of differential drive assisted steering was designed. Firstly, the assisted curve under different speed and steering wheel torque was developed and the differential torques were distributed to the right and left front wheels. Then the steering r...

A mathematical model of braking a car using differential equations has been compiled. The calculation scheme the plane-parallel motion during is given. When car, three forces are considered in contact each wheel with road: force, slip resistance and normal reaction road. diagram components force acting plane road when sliding. drawn up to determine reactions on wheels car. To assess preservatio...