Kinematic Analysis and Simulation of an A/C Axes Bi-Rotary Milling Head with Zero Transmission

Chen, Yong; Huang, Mong‐Han; Shi, Bo; Xiao, Meng; Hu, Ru Kai; Tang, Jiang Sheng

doi:10.4028/www.scientific.net/amr.625.146

Cited by 4 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Extensive efforts have been made to explore the design methods of mechanical structure and transmission, the manufacturing and assembly techniques of the mechanism, and the performances, including stiffness, accuracy, dynamic characteristics, and reliability. [8][9][10][11][12][13][14][15][16][17][18] Gao et al [14][15][16] overcame the difficulties of large volume, low rigidity, and low carrying capacity in higher pair transmission by investigating four types of biaxial rotary milling heads, for example, six-rod whole hinge double-row drive type, six-rod whole hinge singerow drive type, single screw drive type, and double screw drive type. Cai et al 17,18 established a technique system for heavy loading biaxial rotary milling head by integrating the analysis of kinematics, statics, dynamics, heat property, and thermomechanical coupling.…”

Section: Introductionmentioning

confidence: 99%

Compliance analysis and lightweight design of a two-degree-of-freedom rotating head

Wang

Liu

Feng

2019

Advances in Mechanical Engineering

View full text Add to dashboard Cite

This article presents an approach for the compliance analysis and lightweight design of a two-degree-of-freedom rotating head by considering both gravity and joint/link compliances, which provides a comprehensive understanding on the posture adjustment mechanism of five-degree-of-freedom hybrid manipulator. A kinetostatic analysis is carried out to consider both externally applied wrench imposed upon the end-effector and gravity of all movable components. Then, a deflection analysis integrating both joint and link compliances and formulation of component compliance matrices are completed by using a semi-analytical approach. Finally, the lightweight design of two-degree-of-freedom rotating head is realized by considering the deflection constraints. This approach enables to effectively evaluate the deflections of endeffector caused by both payload and gravity under given operation conditions. Moreover, the established method provides reliable guidelines for the design of two-degree-of-freedom rotating head with superior static rigidities and dynamic behaviors.

show abstract

Section: Introductionmentioning

confidence: 99%

Compliance analysis and lightweight design of a two-degree-of-freedom rotating head

Wang

Liu

Feng

2019

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

Research units of flexible working body motion, cutting branches

Bukhtoyarov¹,

Maksimenkov

Абрамов

et al. 2019

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

There are significant tilts of the working body, clamping, hitting an insurmountable obstacle when the machine is working in the forest, due to the unevenness of the soil, stumps, and fallen trees. Therefore, circular saws and cutters often fail. Flexible working body is able to deviate from insurmountable obstacles, which increases the reliability of the machine. Since each link of the flexible working body can move relative to the other, the use of analytical methods for describing kinematics is possible only for the cases with a large number of known input parameters, which we have shown in the mathematical model of the rotor. A virtual prototype of a rotor with a flexible working body has been created to describe the movement of a flexible working body with a minimum number of input parameters. 3d contact between the links, their geometrical parameters, initial position, weight, gravity, torque applied to the shaft are given in the simulation model of the rotor. Thus, (having only geometric and mass characteristics of the links of a flexible working body at the input based on a simulation experiment) dependencies have been obtained to determine the kinematics of the links of a flexible working body, taking into account its bending in the vertical and horizontal plane.

show abstract

Movement simulation of flexible working body links in the Unity cross-platform development environment

Bukhtoyarov

Maksimenkov

Лысыч

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The analytical modeling of multi-link mechanisms with a large number of degrees of freedom is a difficult task, therefore, it is advisable to use a simulation model Since it is planned to use a flexible working body on an area overgrown with vegetation, this will require a significant number of elements and, as a result, it will be very difficult to perform work using computer-aided design. In this paper, a simulation model of a flexible working body is implemented in a cross-platform Unity development environment. In computer-aided design systems, we are limited to tools and algorithms created by developers. In Unity, we have the opportunity to create our own tools and algorithms, adding it to the links of interest to us, which are solids in the field of gravitational forces. We created a 3D model of each link of a flexible working body, connected it with hinges with the possibility of moving relative to each other. Added scripts to accelerate the rotor and save the coordinates of the links. Based on the obtained coordinates, dependencies were constructed to determine the kinematics of the links of the flexible working body, taking into account its bending in the vertical and horizontal plane under the action of gravity.

show abstract

Kinematic Analysis and Simulation of an A/C Axes Bi-Rotary Milling Head with Zero Transmission

Cited by 4 publications

References 3 publications

Compliance analysis and lightweight design of a two-degree-of-freedom rotating head

Compliance analysis and lightweight design of a two-degree-of-freedom rotating head

Research units of flexible working body motion, cutting branches

Movement simulation of flexible working body links in the Unity cross-platform development environment

Contact Info

Product

Resources

About