Dynamic behavior analysis of planetary gear transmission system with bolt constraint of the flexible ring gear

Che, Xiaoyu; Zhu, Rupeng

doi:10.1007/s11012-023-01668-z

Cited by 4 publications

(5 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, the traditional planetary gear system is a rotating system where the ring gear remains fixed, and the carrier serves as the output. This configuration is used in the literature 25 . This paper employs a differential planetary gear system, where both the ring gear r 2 and the carrier c can rotate.…”

Section: The Dynamic Load-sharing Model Of Encased Differential Plane...mentioning

confidence: 99%

See 1 more Smart Citation

The effect of floating spline parameter on the dynamic characteristic of encased differential planetary gear train

Che,

Yu,

Zhang

et al. 2024

Sci Rep

Self Cite

View full text Add to dashboard Cite

The load sharing performance of encased differential planetary system has a great impact on the operating performance and service life of the transmission system of the coaxial high speed helicopter. In order to improve the load-sharing performance of the gear pair, the influence of different floating spline structural parameters on the load sharing characteristics of the system was studied. Considering the manufacturing error, installation error, time varying meshing stiffness and other factors, the Lagrange equation is used to construct the dynamic model of encased differential planetary gear train with floating spline structure. The effects of input torque, spline clearance, spline shaft stiffness and spline friction coefficient on the load sharing performance of gear pairs were analyzed. The results show that the differential stage system has a better load sharing performance than the encased stage system. The increase of input torque helps to improve the load sharing performance of the system, and the improvement of the encased stage system is more obvious. The floating spline of sun gear of the encased stage has a greater impact on the load sharing performance of the system. Furthermore, increasing the floating spline clearance, reducing spline shaft stiffness or increasing the friction coefficient of the spline can improve the load sharing performance of the system overall.

show abstract

Section: The Dynamic Load-sharing Model Of Encased Differential Plane...mentioning

confidence: 99%

“…Since the coincidence of gears is generally not an integer, there is a situation of alternating meshing of single and double teeth, resulting in time varying meshing stiffness, which is calculated according to the method from literature 25 , as shown in Eq. ( 7 ).…”

Section: The Dynamic Load-sharing Model Of Encased Differential Plane...mentioning

confidence: 99%

The effect of floating spline parameter on the dynamic characteristic of encased differential planetary gear train

Che,

Yu,

Zhang

et al. 2024

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Since the coincidence of spur gears is generally not an integer and is less than two, there exists alternating meshing of single and double teeth, resulting in periodic fluctuations in gear meshing stiffness. The time-varying meshing stiffness can be calculated by Equation (1) [12]:…”

Section: Time-varying Meshing Stiffnessmentioning

confidence: 99%

“…q mn represents the degree of freedom involved in meshing, as shown in Equation ( 17). e mn represents the equivalent meshing error of the meshing pair mn, which can refer to Equation (12). When the system is a star gear train, m = s 1 , r 1 , n = a i , b i (i = 1, 2, .…”

Section: Overall System Dynamic Modelmentioning

confidence: 99%

“…Ryali et al [11] built a hybrid planetary dynamic load distribution model and studied the effects of planet carrier flexibility on both the quasistatic and dynamic response of planetary gear sets. Che et al [12] investigated the influence of the bolt constraint parameters on the dynamic characteristic of the planetary gear transmission system. Zhang et al [13] studied the load-sharing performance of the prototype through a scale model of PGTS, and the model was verified by physical experiments.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Floating Support Parameters on the Load-Sharing Performance of EDPGS Based on Mathematical Statistical Methods

Che,

Zhu

2024

Machines

Self Cite

View full text Add to dashboard Cite

The encased differential planetary gear system (EDPGS) allows power to be distributed among multiple output paths, enhancing efficiency and reducing weight. Uniform load distribution ensures stable system operation and prolongs service life. However, stochastic manufacturing errors leading to uneven load distribution pose challenges in engineering practice. To investigate the impact of floating support parameters on the load-sharing performance within an acceptable tolerance band, a dynamic model of the EDPGS considering time-varying meshing stiffness and random errors is established using the Monte Carlo method. This study employs the orthogonal experimental design method to analyze the effects of floating support stiffness and clearance on the load-sharing characteristics. The findings indicate that a larger sample size leads to a probability distribution of load-sharing coefficients closer to the Gaussian distribution, with minimal influence on the expectation and variance. Furthermore, this study highlights the significant influence of floating structure parameters on load-sharing characteristics in the encased stage systems compared to the differential stage. Decreasing floating support stiffness or increasing floating clearance proves beneficial in enhancing the load-sharing performance of the system.

show abstract

Closed-form equations for statically analyzing shaft-gear systems

Hosseini-Tabatabaei,

Alfouneh

2024

Meccanica

View full text Add to dashboard Cite

Dynamic behavior analysis of planetary gear transmission system with bolt constraint of the flexible ring gear

Cited by 4 publications

References 26 publications

The effect of floating spline parameter on the dynamic characteristic of encased differential planetary gear train

The effect of floating spline parameter on the dynamic characteristic of encased differential planetary gear train

Effect of Floating Support Parameters on the Load-Sharing Performance of EDPGS Based on Mathematical Statistical Methods

Closed-form equations for statically analyzing shaft-gear systems

Contact Info

Product

Resources

About