Failure modes analysis of railway wheel

The Analysis of Wheel Loader Diesel Engine Crankshaft Failure

The main purpose of this study is to review the cause for the crankshaft failure of six-cylinder diesel engine of a wheel loader after passing a short period of time. The failure had occurred after 4800 hours of in-service in the fifth crankpin of the crankshaft. Hardness and tensile tests were carried out to study their mechanical properties. Spectrophotometer machine was used to examine the c...

Impacts of Wheel–rail at Railway Turnouts

Investigation of vertical vibrations of a railway turnout is important in designing track components under moving loads of trains. In this paper, the turnout is simulated by a linear finite element model with modal damping. A section of the turnout has a length of 36 sleeper spans surrounding the crossing. Rails and sleepers are modeled with uniform Rayleigh-&#10Timoshenko beam elements. The ra...

Impacts of Wheel–rail at Railway Turnouts

Investigation of vertical vibrations of a railway turnout is important in designing track components under moving loads of trains. In this paper, the turnout is simulated by a linear finite element model with modal damping. A section of the turnout has a length of 36 sleeper spans surrounding the crossing. Rails and sleepers are modeled with uniform Rayleigh- Timoshenko beam elements. The rail...

Risk Assessment of Clinical Care in Emergency Departments ByHealth Failure Modes and Effects Analysis

Introduction: Medical errors are among significant health system problems. The best method to detect errors is to identify the root and systemic causes of errors. Objective: This study aimed to investigate the failures of clinical care in emergency departments using the Healthcare Failure Modes and Effects Analysis (HFMEA). Materials and Methods: This was an analytical and cross-sectional stu...

Simulation of Characteristic of Linear Degradation with Failure Modes