Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Distribution Reliability and Automation01:25

Distribution Reliability and Automation

174
Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
174
Fatigue01:21

Fatigue

280
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
280
Design of Transmission Shafts - Stress Analysis01:15

Design of Transmission Shafts - Stress Analysis

526
Designing a transmission shaft requires a thorough understanding of the stresses induced by bending moments and torques, especially in systems where power is transferred through gears. These forces create force-couple systems at the centers of the shaft's cross-sections, leading to both transverse and torsional loading. Although shearing stresses from transverse loads are typically smaller than those from torques and are often overlooked, the significant normal stresses from these loads...
526
Reliability and Validity01:29

Reliability and Validity

13.3K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.3K
Design Consideration01:22

Design Consideration

359
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
359
Transmission Shafts: Problem Solving01:09

Transmission Shafts: Problem Solving

321
Designing a solid shaft that transmits power from a motor to a machine tool involves a series of calculations to ensure the shaft can withstand the stresses applied by bending moments and torques. First, calculate the torque exerted on the gear, considering the power transmitted by the shaft and its rotational speed. Following this, compute the tangential forces acting on the gears, which directly relate to the torque and the gear radius.
Next, use bending moment diagrams for the shaft to...
321

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Wear Resistance of Zirconia-Reinforced WC-6Co Hardmetals: A Case Study.

Materials (Basel, Switzerland)·2026
Same author

The Influence of Ageing and Hydrothermal Fatigue (Thermocycling) on Degradation and Fracture Toughness of Light-Cured and Hybrid Resin-Based Nanocomposites (RBCs).

Journal of functional biomaterials·2026
Same author

Ultrasonic Evaluation of the Adhesion Between Regenerative Coatings and Steel Substrates.

Materials (Basel, Switzerland)·2026
Same author

Effects of Chemical Composition on Anaerobic Digestion Kinetics of Sugar Beet Pulp: Gompertz and Two-Fraction Kinetic Modelling.

Molecules (Basel, Switzerland)·2026
Same author

Multiple HIV virological failures related to bictegravir-valproic acid interaction evidenced by therapeutic drug monitoring: A retrospective study.

Therapie·2026
Same author

Influence of Plastic Machining on the Quality of a Clinching Joint in Aluminum.

Materials (Basel, Switzerland)·2026

Related Experiment Video

Updated: Oct 12, 2025

Applicability Analysis of Assessment Methods for Morphological Parameters of Corroded Steel Bars
10:24

Applicability Analysis of Assessment Methods for Morphological Parameters of Corroded Steel Bars

Published on: November 1, 2018

6.8K

Reliability Analysis for Unrepairable Automotive Components.

Dariusz Ulbrich1, Jaroslaw Selech1, Jakub Kowalczyk1

  • 1Faculty of Transport and Civil Engineering, Institute of Machines and Motor Vehicles, Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland.

Materials (Basel, Switzerland)
|November 27, 2021
PubMed
Summary

This study assessed vehicle boot lid contactor reliability using failure data. The three-parameter Weibull distribution best fit reliability data, enabling preventive maintenance strategies.

Keywords:
automotivefailure analysisreliability

More Related Videos

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
14:57

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

14.0K
Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture
09:53

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

Published on: May 13, 2018

8.4K

Related Experiment Videos

Last Updated: Oct 12, 2025

Applicability Analysis of Assessment Methods for Morphological Parameters of Corroded Steel Bars
10:24

Applicability Analysis of Assessment Methods for Morphological Parameters of Corroded Steel Bars

Published on: November 1, 2018

6.8K
Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
14:57

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

14.0K
Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture
09:53

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

Published on: May 13, 2018

8.4K

Area of Science:

  • Automotive Engineering
  • Reliability Engineering
  • Statistical Analysis

Background:

  • Assessing technical object reliability requires understanding component functional and reliability parameters.
  • Vehicle component failure data analysis is crucial for determining mean time to failure and reliability distribution.
  • The boot lid contactor is a critical electronic component in vehicles, impacting safety and maintenance.

Purpose of the Study:

  • To develop a method for assessing the reliability of a vehicle's boot lid contactor.
  • To present repair methods including sealing, replacement, and body modification.
  • To determine reliability and cost parameters for preventive replacement of the boot lid contactor.

Main Methods:

  • Failure data analysis from 61 vehicles with different body structures.
  • Likelihood Value (LKV) test for distribution selection and rank determination.
  • Maximum Likelihood Estimation (MLE) method for distribution parameter estimation.

Main Results:

  • The three-parameter Weibull distribution was identified as the best fit for boot lid contactor reliability in both hatchback and estate models.
  • Significant differences in reliability characteristics were observed between car body types within the same model.
  • Failure data indicated a high failure rate for the boot lid contactor across the tested fleet.

Conclusions:

  • Reliability analysis of vehicle components like the boot lid contactor is essential for effective maintenance.
  • The Weibull distribution provides a robust model for characterizing component reliability and durability.
  • Implementing preventive replacement strategies based on reliability data can minimize vehicle downtime, reduce costs, and enhance safety.