Design and evaluation of two-stage planetary gearbox for special-purpose industrial machinery

Qin, Zhen; Wu, Yu-Ting; Eizad, Amre; Lee, Ki-Hun; Lyu, Sung-Ki

doi:10.1007/s12206-019-1139-7

Cited by 16 publications

(4 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With ever-improving computer technology, simulation technology has also seen many innovations [29][30][31][32]. Among these, the finite element method (FEM) plays an important role in solving structural stability problems of machinery and materials [33].…”

Section: Modeling and Investigation Methodsmentioning

confidence: 99%

Mechanism Design and Experimental Verification of Novel Automatic Balance Equipment for a Rope-Type Elevator

Qin

Cong

et al. 2022

Machines

Self Cite

View full text Add to dashboard Cite

Multi-rope elevators are widely used in modern buildings. However, problems such as vibration, noise, uneven wear of key components and shortened life caused by the uneven distribution of rope tensions are still unsolved in the elevator industry. In order to balance the different tensions and the axial deformation of each rope, a novel automatic balance equipment for rope-type elevators (NABE-RE) is proposed in this article. Simulations based on the Simscape numerical methodology are used to verify the kinematic rationality of the proposed mechanism. The optimal structural stability of the core components is evaluated through a series of investigations based on the finite element method. Additionally, the manufactured prototypes are put through a series of comparison experiments to evaluate their tension balancing performance. The results show that the unbalance rate of the system is effectively limited to a low level, thus verifying the feasibility of the automatic tension balancing function of the proposed NABE-RE.

show abstract

Section: Modeling and Investigation Methodsmentioning

confidence: 99%

Mechanism Design and Experimental Verification of Novel Automatic Balance Equipment for a Rope-Type Elevator

Qin

Cong

et al. 2022

Machines

Self Cite

View full text Add to dashboard Cite

show abstract

“…The cubic term in this equation can be broken down as: sin 3 (ωt) = [3 sin(ωt) − sin(3ωt)]/4. The non-harmonic high frequency term that, in general, does not simply decay with time can be omitted and the constant terms with sin(ωt) and cos(ωt) can be integrated as:…”

Section: Nonlinear Stiffness Isolator Modelmentioning

confidence: 99%

“…If the excitation frequency is close to a natural frequency of the bridge system, resonance will occur. Resonance is regarded as one of the main causes of bridge damage leading to fatigue and shortened life [3][4][5][6][7]. Therefore, a great amount of effort has been undertaken to develop methods for avoiding/mitigating the effects of vibration on cable-stayed bridge structures.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Design of a Novel Vibration Energy Absorbing Mechanism for Cables

Qin

Huang

et al. 2020

Applied Sciences

Self Cite

View full text Add to dashboard Cite

A novel design of a vibration energy absorbing mechanism (VEAM) that is based on multi-physics (magnetic spring, hydraulic system, structural dynamics, etc.) for cable vibration is proposed. The minimum working force of the hydraulic cylinder has been exploited in this design in order to combine a non-linear stiffness vibration isolation module that is composed of permanent magnetic springs with hydraulic viscous vibration damping modules. In response to different environmental vibration impacts, VEAM can automatically switch the vibration control modes without an electronic mechanism. Additionally, the non-contact design effectively reduces the wear that is induced by the reciprocating motion of the small amplitude of the hydraulic viscous dampers. The proposed mechanism is explained and a theoretical model is established. The transmissibility of the two modules at a single degree of freedom is derived using the harmonic balance method. After that, a series of variable control numerical simulations were performed for each important parameter. Empirical rules for designing the system were created by comparing the influence of each parameter on the vibration isolation performance of the entire system.

show abstract

“…At present, there have been related studies on the problems of vigorous vibration and low reliability of various types of machinery during operation [5][6][7]. The reason for violent vibration is that the natural frequency of the structure is close to the excitation frequency and resonance occurs [8]; the natural frequency and vibration mode can be solved by simulation software.…”

Section: Introductionmentioning

confidence: 99%

Resonance Analysis and Vibration Reduction Optimization of Agricultural Machinery Frame—Taking Vegetable Precision Seeder as an Example

Wang

et al. 2021

Processes

View full text Add to dashboard Cite

In order to solve the problem of vigorous vibration of agricultural machinery frames, taking a vegetable precision seeder as an example, the concept of vibration reduction was proposed. The modal analysis of the frame was carried out, and the accuracy of the finite element model was verified by comparing the modal test of multipoint input and multipoint output (MIMO) and simulation results. Additionally, the main frequency of engine vibration was the main excitation source of frame resonance. According to the modal shapes, it was proposed to increase the fixed beam structure and to carry out simulation tests. The time-domain signal of the maximum deformation position in the first-order vibration mode was measured, and the vibration spectrum analysis maps before and after optimization were obtained by Fourier transform. A field experiment showed that the seeding quality of the whole machine was significantly improved after optimization. This study provides a reference for the analysis of vibration characteristics and the vibration reduction design of the agricultural machinery equipment.

show abstract

Design and evaluation of two-stage planetary gearbox for special-purpose industrial machinery

Cited by 16 publications

References 14 publications

Mechanism Design and Experimental Verification of Novel Automatic Balance Equipment for a Rope-Type Elevator

Mechanism Design and Experimental Verification of Novel Automatic Balance Equipment for a Rope-Type Elevator

Theoretical Design of a Novel Vibration Energy Absorbing Mechanism for Cables

Resonance Analysis and Vibration Reduction Optimization of Agricultural Machinery Frame—Taking Vegetable Precision Seeder as an Example

Contact Info

Product

Resources

About