4.5 Article

A novel modeling method for evaluating the time-varying mesh stiffness of gears with pitting based on point cloud processing algorithm

Related references

Note: Only part of the references are listed.
Article Mechanics

Calculation method of mesh stiffness for helical gear pair with manufacturing errors, assembly errors and tooth modifications

Chang Liu et al.

Summary: A novel method is proposed in this paper to accurately calculate the time-varying mesh stiffness of helical gear pairs while considering manufacturing errors, assembly errors, and tooth modifications. The effectiveness of this method is verified for both spur and helical gear pairs, with pitch, helix, and misalignment deviations identified as the main influencing factors.

MECCANICA (2022)

Article Engineering, Mechanical

Improved mesh stiffness calculation model of comprehensive modification gears considering actual manufacturing

Zhou Sun et al.

Summary: This study established an improved analytical model (IAM) for calculating the time-varying meshing stiffness (TVMS), which considers the coupling modification of spur gears. The IAM was compared with existing models and verified by the finite element method (FEM), showing higher accuracy and efficiency in lead crown modification, tooth profile modification, and comprehensive modification calculations.

MECHANISM AND MACHINE THEORY (2022)

Article Engineering, Mechanical

Reverse engineering of spiral bevel gear drives reconstructed from point clouds

Ignacio Gonzalez-Perez et al.

Summary: This paper proposes a methodology of reverse engineering of spiral bevel gears reconstructed from point clouds, which allows for the replacement and improvement of the gears by determining the design data and machine-tool settings through reverse engineering.

MECHANISM AND MACHINE THEORY (2022)

Article Engineering, Mechanical

Research on application of dynamic optimization modification for an involute spur gear in a fixed-shaft gear transmission system

Pu Gao et al.

Summary: This paper proposes a dynamic optimization modification technology that can improve the dynamic characteristics of a mechanical transmission system and reduce the probability of vibration deterioration and fatigue fracture. By comparing and analyzing the vibration response of the gear system, the dynamic characteristics of the modified gear are verified, and the vibration reduction effect of the modification is also verified through vibration performance testing.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2022)

Article Engineering, Mechanical

On the extended tooth contact and nonlinear dynamics for spur gears-An analytical model

Xingyuan Zheng et al.

Summary: This paper proposes an analytical model aiming to combine extended tooth contact and gear nonlinear dynamics. The model starts from gear elasticity and introduces an analytical mesh stiffness model and a load-sharing model. Comparisons with other methods demonstrate the accuracy of the proposed model.

MECHANISM AND MACHINE THEORY (2022)

Article Engineering, Mechanical

Optimization design for dynamic characteristics of face gear drive with surface-active modification

Xianlong Peng et al.

Summary: In this paper, a surface-active modification method is proposed to decrease the vibration of face gear drive. By presetting the unloading performances, developing a dynamic model, and applying a genetic algorithm for optimization, the optimal modification parameters for reducing vibration are found. Numerical calculations show that the modified face gear pair exhibits reduced vibration and improved system stability.

MECHANISM AND MACHINE THEORY (2022)

Article Engineering, Mechanical

Comprehensive diagnosis and analysis of spur gears with pitting-crack coupling faults

Tiancheng Ouyang et al.

Summary: This study focuses on the mathematical modeling and validation of gears with coupling faults. By analyzing the dynamic characteristics, the gear status can be diagnosed effectively. The use of statistical indicators provides further insights into the degree of coupling faults.

MECHANISM AND MACHINE THEORY (2022)

Article Engineering, Mechanical

A new tooth pitting modeling method based on matrix equation for evaluating time-varying mesh stiffness

Fanshan Meng et al.

Summary: A new tooth pitting modeling method based on matrix equation is proposed in this study, which can generate irregular shape pitting and customize the depth and shape accuracy of pits easily, making it more suitable for practical situations.

ENGINEERING FAILURE ANALYSIS (2022)

Article Engineering, Mechanical

Probability distribution model of gear time-varying mesh stiffness with random pitting of tooth surface

Wenzheng Liu et al.

Summary: This study established a probability distribution model of gear meshing stiffness (TVMS) with random pitting, based on the Monte Carlo method and image processing. The research considered the relationship between tooth surface fault degree, pits number, and TVMS characteristics. The results showed that pits number and distribution parameters have an influence on gear meshing stiffness.

ENGINEERING FAILURE ANALYSIS (2021)

Article Engineering, Mechanical

Dynamic analysis for a spur geared rotor system with tooth tip chipping based on an improved time-varying mesh stiffness model

Yi Yang et al.

Summary: This study conducts a comprehensive analysis of a spur geared rotor system with tooth tip chipping from the viewpoints of dynamic modeling and fault detection. The study reveals the influences of chipping defects on the vibration behaviors of the rotor system and introduces statistical indicators to evaluate fault conditions.

MECHANISM AND MACHINE THEORY (2021)

Review Engineering, Mechanical

Mesh stiffness models for cylindrical gears: A detailed review

Joao D. M. Marafona et al.

Summary: This paper focuses on gear mesh stiffness in gear transmissions, discussing different types of models, implementation guidelines, main conclusions, and providing an outlook on the future development of gear mesh stiffness.

MECHANISM AND MACHINE THEORY (2021)

Article Acoustics

Multi-source fidelity sparse representation via convex optimization for gearbox compound fault diagnosis

Weiguo Huang et al.

Summary: Industrial automatic control systems require high manufacturing accuracy, which can be adversely affected by compound faults in rotating machinery like gearboxes. To address this, a novel multi-source fidelity sparse representation method is proposed for accurate multiple fault diagnosis without prior knowledge of fault sources. The method involves analyzing the gearbox compound failure mechanism and constructing a multi-source penalty function to improve signal fidelity.

JOURNAL OF SOUND AND VIBRATION (2021)

Article Engineering, Mechanical

Study on the optimum standard parameters of hob optimization for reducing gear tooth root stress

Rong He et al.

Summary: Two sets of Bezier curve parameters were developed to optimize gear hobs, reducing gear stress and manufacturing costs significantly. These parameter sets make a significant contribution to the optimization and manufacture of gears.

MECHANISM AND MACHINE THEORY (2021)

Article Engineering, Civil

Measurement and qualification of welded I-column failure mode using laser scanning technique

Yan Xu et al.

Summary: The study focuses on automatic reconstruction of 3D geometric model of a steel column in failure state using laser scanning technique and qualification of the deformation. A curve segmentation method based on image-based cross-correlation matching was proposed to accurately detect the corner points and weld regions in the cross-section. The efficiency and robustness of the proposed method were verified through comparison with the classical cross-sectional constrained finite strip method.

STRUCTURES (2021)

Article Engineering, Mechanical

An improved analytical model for gear mesh stiffness calculation

He Dai et al.

Summary: An improved analytical model is proposed to determine gear mesh stiffness based on contact mechanics and gear engagement principle, considering addendum modification and varying-load conditions. Experimental investigations verify the accuracy of calculating time-varying mesh stiffness under non-stationary conditions.

MECHANISM AND MACHINE THEORY (2021)

Article Engineering, Civil

Inspection of blade profile and machining deviation analysis based on sample points optimization and NURBS knot insertion

Lida Zhu et al.

Summary: The study introduces a method to obtain machining accuracy information through blade inspection and the process of reconstructing blade contour using measurement point optimization and knot insertion techniques. The results show that the proposed method can better restore the blade contour, with machining error within design tolerance and finishing allowance can be removed.

THIN-WALLED STRUCTURES (2021)

Article Engineering, Mechanical

Planetary gearbox spectral modeling based on the hybrid method of dynamics and LSTM

Ruo-Bin Sun et al.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2020)

Article Engineering, Mechanical

Improved analytical calculation model of spur gear mesh excitations with tooth profile deviations

Zaigang Chen et al.

MECHANISM AND MACHINE THEORY (2020)

Article Engineering, Mechanical

New approach for gear mesh stiffness evaluation of spur gears with surface defects

Bilal El Yousfi et al.

ENGINEERING FAILURE ANALYSIS (2020)

Article Materials Science, Characterization & Testing

A novel evolution model of pitting failure and effect on time -varying meshing stiffness of spur gears

Zong Meng et al.

ENGINEERING FAILURE ANALYSIS (2020)

Article Construction & Building Technology

Three-dimensional discrete element modelling of rubble masonry structures from dense point clouds

Nicko Kassotakis et al.

AUTOMATION IN CONSTRUCTION (2020)

Article Engineering, Mechanical

A novel distribution model of multiple teeth pits for evaluating time-varying mesh stiffness of external spur gears

Taoyuan Chen et al.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2019)

Article Engineering, Mechanical

Evaluation of the time-varying mesh stiffness for gears with tooth spalls with curved-bottom features

Yang Luo et al.

ENGINEERING FAILURE ANALYSIS (2018)

Article Engineering, Mechanical

Improved analytical models for mesh stiffness and load sharing ratio of spur gears considering structure coupling effect

Chongyang Xie et al.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2018)

Article Engineering, Mechanical

A probability distribution model of tooth pits for evaluating time-varying mesh stiffness of pitting gears

Yaguo Lei et al.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2018)

Article Mathematics, Applied

An integrated fitting and fairing approach for object reconstruction using smooth NURBS curves and surfaces

Ali Hashemian et al.

COMPUTERS & MATHEMATICS WITH APPLICATIONS (2018)

Article Engineering, Mechanical

Analytical formulas for gear body-induced tooth deflections of spur gears considering structure coupling effect

Chongyang Xie et al.

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES (2018)

Article Engineering, Mechanical

Time-varying mesh stiffness calculation of spur gears with spalling defect

Hui Ma et al.

ENGINEERING FAILURE ANALYSIS (2016)

Article Geography, Physical

Slicing Method for curved facade and window extraction from point clouds

S. M. Iman Zolanvari et al.

ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING (2016)

Article Engineering, Mechanical

An improved analytical method for mesh stiffness calculation of spur gears with tip relief

Hui Ma et al.

MECHANISM AND MACHINE THEORY (2016)

Article Engineering, Mechanical

The influence of tooth pitting on the mesh stiffness of a pair of external spur gears

Xihui Liang et al.

MECHANISM AND MACHINE THEORY (2016)

Article Engineering, Mechanical

Improved time-varying mesh stiffness model of cracked spur gears

Hui Ma et al.

ENGINEERING FAILURE ANALYSIS (2015)

Article Engineering, Mechanical

Effect of cracks and pitting defects on gear meshing

Alfonso Fernandez del Rincon et al.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE (2012)