Sökning: "squat"
Visar resultat 1 - 5 av 21 avhandlingar innehållade ordet squat.
1. Squat Detection in Railway Switches & Crossings Using Point Machine Vibration
Sammanfattning : Railway switches and crossings (S&Cs) are among the most important high-value components in a railway network and a single failure of such an asset could result in severe network disturbance, huge economical loss, and even severe accidents. Therefore, potential defects need to be detected at an early stage and the status of the S&C must be monitored to prevent such consequences. LÄS MER
2. Surface defects in rails - Potential influence of operational parameters on squat initiation
Sammanfattning : Despite significant efforts throughout the last decades, the mechanisms behind the formation of squats — a form of rolling contact fatigue (RCF) damage in rails — are not fully understood. Proposed causes of initiation involve, but are not limited to, small initial rail surface irregularities which yield high contact stresses, rail corrugation and varying friction conditions. LÄS MER
3. Automated Squat Detection in Railway Switches & Crossings Using Vibration Measurements and Machine Learning
Sammanfattning : Railway switches and crossings (S&Cs) play a vital role in the operational integrity of a railway network, and their malfunctioning poses substantial risks such as traffic disruptions, economic ramifications, and potential life-threatening accidents. Consequently, it becomes imperative to proactively identify potential defects in S&Cs at an early stage and maintain continuous monitoring of their condition to avoid adverse consequences. LÄS MER
4. The single leg squat in clinical testing : aspects of reliability, validity, and associated factors
Sammanfattning : Background: The Single Leg Squat (SLS) test is a functional test widely used in clinical settings to examine and evaluate rehabilitation goals. Research indicates that the SLS is reliable when the knee relative to the foot is dichotomously assessed. LÄS MER
5. Squat defects and rolling contact fatigue clusters - Numerical investigations of rail and wheel deterioration mechanisms
Sammanfattning : Squat defects, a type of localised rolling contact fatigue damage appearing on rail surfaces with rail break as an ultimate consequence, have concerned infrastructure managers for the last couple of decades. In recent years similar types of defects—so-called studs—that are visually resembling squats, have started to appear. LÄS MER