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

Multimachine Stability01:25

Multimachine Stability

229
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
229
Harmonic Mean01:09

Harmonic Mean

3.2K
The arithmetic mean is usually skewed towards the larger values in the data set. Therefore, to avoid this inherent bias towards smaller values, the harmonic mean is used.
Take the example of the speed of a car, which is the measure of the rate of distance traveled. If the vehicle traverses the same distance back-and-forth, its average speed equals the total distance traveled divided by the total time taken. However, if the car moves with varying speeds, then the arithmetic mean is more skewed...
3.2K
Simplified Synchronous Machine Model01:30

Simplified Synchronous Machine Model

329
The Synchronous Machine Model is a fundamental tool in analyzing and ensuring the transient stability of power systems. This model simplifies the representation of a synchronous machine under balanced three-phase positive-sequence conditions, assuming constant excitation and ignoring losses and saturation. The model is pivotal for understanding the behavior of synchronous generators connected to a power grid, particularly during transient events.
In this model, each generator is connected to a...
329
Routh-Hurwitz Criterion I01:15

Routh-Hurwitz Criterion I

333
Consider an electrical power grid, where stability is essential to prevent blackouts. The Routh-Hurwitz criterion is a valuable tool for assessing system stability under varying load conditions or faults. By analyzing the closed-loop transfer function, the Routh-Hurwitz criterion helps determine whether the system remains stable.
To apply the Routh-Hurwitz criterion, a Routh table is constructed. The table's rows are labeled with powers of the complex frequency variable s, starting from the...
333
Distribution Reliability and Automation01:25

Distribution Reliability and Automation

155
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...
155
Design of Transmission Shafts - Stress Analysis01:15

Design of Transmission Shafts - Stress Analysis

498
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...
498

You might also read

Related Articles

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

Sort by
Same author

Correction: An efficient hybrid reliability analysis method with application to the harmonic drive.

PloS one·2025
Same author

A computationally efficient stochastic analysis method for predicting the long-term development of aneurysms.

Computer methods in biomechanics and biomedical engineering·2025
Same author

Prediction criterion of the interaction between hydraulic fractures and bedding planes via theoretical and simulation approaches.

Scientific reports·2025
Same author

Prediction criterion and numerical validation for the interaction between hydraulic fractures and bedding planes.

PloS one·2023
Same author

Piston Error Measurement for Segmented Telescopes Based on a Hybrid Artificial Neural Network.

Sensors (Basel, Switzerland)·2023

Related Experiment Video

Updated: Sep 10, 2025

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

1.8K

An efficient hybrid reliability analysis method with application to the harmonic drive.

Jingqi Cui1, Di Zuo2, Xiaoxi Men2

  • 1School of Mechanical Engineering, Dalian Jiaotong University, Dalian, China.

Plos One
|August 21, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a new method to assess harmonic drive reliability, considering multiple uncertainties. The approach accurately evaluates failure probabilities for various modes, aiding in precision machinery design.

More Related Videos

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
07:15

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

4.6K
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.2K

Related Experiment Videos

Last Updated: Sep 10, 2025

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

1.8K
Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
07:15

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

4.6K
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.2K

Area of Science:

  • Mechanical Engineering
  • Reliability Engineering

Background:

  • Harmonic drives are crucial in precision machinery, robotics, and aerospace.
  • Their performance is significantly impacted by uncertain parameters.
  • Existing reliability analysis methods may not fully address hybrid uncertainties.

Purpose of the Study:

  • To establish limit state functions for harmonic drive failure modes.
  • To develop a method for solving probabilistic and interval reliabilities under hybrid uncertainties.
  • To accurately and quickly evaluate failure probabilities of harmonic reducers.

Main Methods:

  • Establishing limit state functions based on stress-strength interference theory.
  • Coupling modified chaos control and multiplicative dimension reduction methods.
  • Continuous solution for probabilistic and interval reliabilities.

Main Results:

  • A simple and implementable model for reliability analysis.
  • Accurate and fast evaluation of failure probabilities for different failure modes.
  • Demonstration of varying strength influences across different failure modes.

Conclusions:

  • The proposed method effectively addresses hybrid uncertainties in harmonic drives.
  • The model provides a reliable tool for assessing harmonic drive performance.
  • Understanding strength influence is key to optimizing harmonic drive design.