Dynamic modeling and analysis of a hydro-mechanical power transmission system

Kumar, Rahul; Kumar, Dharmendra; Mahato, Anil C.; Tripathi, Jay Prakash

doi:10.1016/j.matpr.2022.03.311

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…For special equipment, the transportation distance is long, and the loading and transportation process may cause damage to the container [1]. The design needs to ensure the integrity of the containment boundary of the transport container in the event of a serious accident, taking into account the impact, collision, and other factors on the transport container to avoid radioactive material leakage [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Analysis and research on the dynamic characteristics of shock absorber based on ADAMS

Chen

2024

Vib. proced.

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In order to effectively improve safety and stability during transportation, a shock absorber with buffering and self-locking functions was designed. Based on the rigid flexible coupling technology, the working state and dynamic response of the shock absorber were simulated and analyzed. The linear spring was treated as a flexible body, and the cam button, guide pillar, and base were treated as rigid bodies. The modal neutral files required for the rigid flexible coupling dynamic analysis were generated. Based on ADAMS, a dynamic simulation model was established, replacing a part of the rigid model with a flexible model and conducting load response analysis on it. To further improve the vibration reduction effect, the performance of the contact material of the shock absorber was analyzed. Through the calculation of dynamic characteristics, it could be known that the self-locking mechanism had no dead points, and the vibration reduction force response stability was high, meeting the working requirements.

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Section: Introductionmentioning

confidence: 99%

Analysis and research on the dynamic characteristics of shock absorber based on ADAMS

Chen

2024

Vib. proced.

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“…The commercial feasibility of the hydro-viscous power transmission system for higher power transmission is restricted due to the complex structure. Another hybrid approach, i.e., a gear train combined with an HPT, is discussed in articles (Lin et al, 2014;Pan et al, 2021;R. Kumar et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

A feasibility and dynamic performance analysis of hydromechanical hybrid power transmission technology for wind turbines

Kumar

Mahato

2023

Mech. Sci.

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Abstract. A multi-body dynamical model of a wind turbine power generation system (WTPGS) based on hydromechanical hybrid power transmission (HMHPT) technology is developed and simulated to overcome the individual drawbacks of the gear train and hydrostatic power transmission (HPT) system. The HMHPT is a hybrid concept of a single-stage planetary gear train (SSPGT) and a typical HPT. The input shaft of the SSPGT is coupled with the turbine rotor, whereas the output shaft of the SSPGT is coupled with the shaft of a hydraulic pump. The hydraulic pump supplies flow to the hydro-motor, and its shaft is coupled with the generator. An existing turbine blade model of 750 kW based wind turbine is used for further development and analysis of the HMHPT. The simulation responses indicate that the power generation and the control potential both have been improved using the HMHPT in a wind turbine. Moreover, the influence on the motor power generation due to variations of pump and motor leakages is addressed. Additionally, it is found that if the order of the SSPGT and the HPT are swapped in the proposed HMHPT, then the settling time, maximum overshoot, and rise time of the system responses are increased. As a result, the controllability of the system is decreased.

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Optimization of communication performance in wireless seismic monitoring system

Fan,

Han,

2023

J. vibroeng.

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In order to improve the communication performance between different equipment in the seismic detection system, a wireless network system with MIMO (Multiple Input and Multiple Output) characteristics was designed and applied in the paper. On the basis of 5G communication, a new data conversion and transmission model was built, which can improve the rate of signal transmission and reduce the bit error rate and power consumption. For the purpose of power optimization, the overall framework of the network system was improved, of which power characteristics and performance were verified. The conjugate beam was normalized, and the cumulative distribution function under different downlink rates was obtained based on the maximum minimum power control scheme. In order to verify the energy-saving effect of the design, the ADC (Analog-to-Digital Conversion) power model is introduced. Through simulation analysis, the change rules of spectrum efficiency and energy efficiency under different network nodes were obtained. The results show that the normalized conjugate beam can be less affected by the transmission nodes, and the power control is more reliable under the same conditions. The research and application of this subject can significantly improve the wireless communication performance of the seismic monitoring system, reduce the power consumption of network equipment, improve the data transmission efficiency, and provide strong technical support for seismic prediction and data analysis. Through the test of artificial earthquake, it is verified that the communication scheme designed in this paper has higher transmission efficiency and lower bit error rate, and is very suitable for the long-distance transmission of seismic signals.

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Dynamic modeling and analysis of a hydro-mechanical power transmission system

Cited by 3 publications

References 15 publications

Analysis and research on the dynamic characteristics of shock absorber based on ADAMS

Analysis and research on the dynamic characteristics of shock absorber based on ADAMS

A feasibility and dynamic performance analysis of hydromechanical hybrid power transmission technology for wind turbines

Optimization of communication performance in wireless seismic monitoring system

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