scholarly journals A Study on the Development of Gear Transmission Error Measurement System and Verification

2021 ◽  
Vol 20 (12) ◽  
pp. 136-144
Author(s):  
Seok-Pyo Moon ◽  
◽  
Ju-Yeon Lee ◽  
Sang-Gon Moon ◽  
Su-Chul Kim
Keyword(s):  
Measurement System ◽  
Transmission Error ◽  
Gear Transmission ◽  
Error Measurement

Accuracy of small encoders for gear transmission errors

2001 ◽  
Vol 215 (8) ◽  
pp. 995-998 ◽  
Author(s):  
J. D. Smith
Keyword(s):  
Production Control ◽  
Transmission Error ◽  
Gear Transmission ◽  
Development Work ◽  
Error Measurement ◽  
Gear Noise ◽  
Transmission Errors ◽  
Gear Drives

For noise investigations and development work or precision production control of gear drives there are major advantages to using small encoders for transmission error measurement in situ owing to reduced size, inertias and cost. As there was uncertainty concerning the accuracies that would be obtained in practice, a small encoder was calibrated and found to be surprisingly accurate at those frequencies of importance for gear noise.

Measurement with Rotary Gratings

1980 ◽  
Vol 22 (6) ◽  
pp. 315-318
Author(s):  
K. J. Daly ◽  
J. D. Smith
Keyword(s):  
Measurement System ◽  
Transmission Error ◽  
Operating Conditions ◽  
Error Measurement ◽  
Gear Drive ◽  
Error Components ◽  
Wide Range ◽  
Optical Gratings

A gear drive transmission error measurement system has been developed using small rotary optical gratings. Results can be obtained over a wide range of operating conditions up to shaft speeds of 6000 revs/min. Error components at frequencies up to 600 Hz have been measured and up to l000 Hz is achievable

Encoder error analysis in gear transmission error measurement

1998 ◽  
Vol 212 (4) ◽  
pp. 277-285 ◽  
Author(s):  
S Du ◽  
R B Randall
Keyword(s):  
Measurement Error ◽  
Error Analysis ◽  
Frequency Domain ◽  
Time Domain ◽  
Lower Cost ◽  
Transmission Error ◽  
Frequency Domain Analysis ◽  
Gear Transmission ◽  
Error Measurement ◽  
The Time Domain

This paper investigates encoder measurement error and introduces a method of reducing or cancelling the encoder error from gear transmission error signals. The time domain and frequency domain analysis of the combined encoder error signals has been carried out to show the validity of the method. This method could be useful where the error of lower cost encoders is larger and undocumented and where there is limited space and only a smaller and less accurate encoder will fit.

scholarly journals Development of a Transmission Error Measurement System and Its Adaptation to a Manufacturing Line

2016 ◽  
Vol 26 (4) ◽  
pp. 420-427
Author(s):  
Hyun Ku Lee ◽  
Sang Hwa Lee ◽  
Han Il Ku ◽  
Dong Kyu Yoo ◽  
Kwang Min Won ◽  
...  
Keyword(s):  
Measurement System ◽  
Transmission Error ◽  
Error Measurement ◽  
Manufacturing Line

The Design of Worm Wheel Transmission Error Measurement System and the Research on Experimental Method

2011 ◽  
Vol 199-200 ◽  
pp. 365-371 ◽  
Author(s):  
Fang Yan Zheng ◽  
Zi Ran Chen ◽  
Xi Hou Chen ◽  
Chun Dong
Keyword(s):  
Real Time ◽  
High Precision ◽  
Measurement System ◽  
High Speed ◽  
Transmission Error ◽  
Error Measurement ◽  
Time Data ◽  
Worm Wheel ◽  
High Speed Data Acquisition ◽  
Observation Method

A novel worm wheel transmission error measurement system based on a new space-time subdivision technology is presented in this paper. Non-integer transmission ratio with high precision can be measured with this measurement system. FPGA chip is employed to meet the requirement of high precision and real-time, and USB2.0 meet the requirement of high speed data acquisition and real time data transmission. In addition, precision self-checking is studied with quantitative shifting method, and the experiment method on repeatability test and data processing are studied with dual-observation method. Experiment results prove that this measurement system has high precision and good repeatability.

Influence of the backlash generated by tooth accumulated wear on dynamic behavior of compound planetary gear set

2016 ◽  
Vol 231 (11) ◽  
pp. 2025-2041 ◽  
Author(s):  
Shijing Wu ◽  
Haibo Zhang ◽  
Xiaosun Wang ◽  
Zeming Peng ◽  
Kangkang Yang ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Dynamic Model ◽  
Dynamic Behavior ◽  
Planetary Gear ◽  
Tooth Wear ◽  
Transmission Error ◽  
Gear Transmission ◽  
Tooth Surface ◽  
Contact Ratio ◽  
The Impact

Backlash is a key internal excitation on the dynamic response of planetary gear transmission. After the gear transmission running for a long time under load torque, due to tooth wear accumulation, the backlash between the tooth surface of two mating gears increases, which results in a larger and irregular backlash. However, the increasing backlash generated by tooth accumulated wear is generally neglected in lots of dynamics analysis for epicyclic gear trains. In order to investigate the impact of backlash generated by tooth accumulated wear on dynamic behavior of compound planetary gear set, in this work, first a static tooth surface wear prediction model is incorporated with a dynamic iteration methodology to get the increasing backlash generated by tooth accumulated wear for one pair of mating teeth under the condition that contact ratio equals to one. Then in order to introduce the tooth accumulated wear into dynamic model of compound planetary gear set, the backlash excitation generated by tooth accumulated wear for each meshing pair in compound planetary gear set is given under the condition that contact ratio equals to one and does not equal to one. Last, in order to investigate the impact of the increasing backlash generated by tooth accumulated wear on dynamic response of compound planetary gear set, a nonlinear lumped-parameter dynamic model of compound planetary gear set is employed to describe the dynamic relationships of gear transmission under the internal excitations generated by worn profile, meshing stiffness, transmission error, and backlash. The results indicate that the introduction of the increasing backlash generated by tooth accumulated wear makes a significant influence on the bifurcation and chaotic characteristics, dynamic response in time domain, and load sharing behavior of compound planetary gear set.

Gear transmission error outside the normal path of contact due to corner and top contact

1999 ◽  
Vol 213 (4) ◽  
pp. 389-400 ◽  
Author(s):  
R. G. Munro ◽  
L Morrish ◽  
D Palmer
Keyword(s):  
Dynamic Test ◽  
Theoretical Models ◽  
Transmission Error ◽  
Helical Gear ◽  
Gear Transmission ◽  
The Novel ◽  
Transmission Systems ◽  
Helical Gears ◽  
Tooth Stiffness ◽  
Top Contact

This paper is devoted to a phenomenon known as corner contact, or contact outside the normal path of contact, which can occur in spur and helical gear transmission systems under certain conditions. In this case, a change in position of the driven gear with respect to its theoretical position takes place, thus inducing a transmission error referred to here as the transmission error outside the normal path of contact (TEo.p.c). The paper deals with spur gears only, but the results are directly applicable to helical gears. It systematizes previous knowledge on this subject, suggests some further developments of the theory and introduces the novel phenomenon of top contact. The theoretical results are compared with experimental measurements using a single flank tester and a back-to-back dynamic test rig for spur and helical gears, and they are in good agreement. Convenient approximate equations for calculation of TEo.p.c suggested here are important for analysis of experimental data collected in the form of Harris maps. This will make possible the calculation of tooth stiffness values needed for use in theoretical models for spur and helical gear transmission systems.

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