Plateau Heavy-Duty Automobile Transmission Shaft Universal Joint Fork Optimal Design Based on FEM

2016 ◽  
Author(s):  
Xu Lian Jiang ◽  
He Ming ◽  
Yang Jian Fei
Keyword(s):  
Optimal Design ◽  
Heavy Duty ◽  
Universal Joint ◽  
Transmission Shaft

Optimal Design of a 2-UPR-RPU Parallel Manipulator

2015 ◽  
Vol 137 (5) ◽  
Author(s):  
Feibo Wang ◽  
Qiaohong Chen ◽  
Qinchuan Li
Keyword(s):  
Optimal Design ◽  
Parallel Manipulator ◽  
Design Space ◽  
Parameter Design ◽  
Optimal Parameters ◽  
Force Transmission ◽  
Universal Joint ◽  
Practical Applications ◽  
Optimum Region ◽  
Dimensional Optimization

This paper investigates dimensional optimization of a 2-UPR-RPU parallel manipulator (where U is a universal joint, P a prismatic pair, and R a revolute pair). First, the kinematics and screws of the mechanism are analyzed. Then, three indices developed from motion/force transmission are proposed to evaluate the performance of the 2-UPR-RPU parallel manipulator. Based on the performance atlases obtained, a set of optimal parameters are selected from the optimum region within the parameter design space. Finally, the optimized parameters are determined for practical applications.

Design of Large Motion Range and Heavy Duty 2-DOF Spherical Parallel Wrist Mechanism

2013 ◽  
Vol 25 (2) ◽  
pp. 294-305 ◽  
Author(s):  
Koji Ueda ◽  
◽  
Hiroya Yamada ◽  
Hiroaki Ishida ◽  
Shigeo Hirose ◽  
...  
Keyword(s):  
Load Capacity ◽  
Heavy Duty ◽  
Universal Joint ◽  
Compact Structure ◽  
Robotic Arms ◽  
Rescue Robot ◽  
Wide Range ◽  
Spherical Parallel Mechanism ◽  
Motion Range ◽  
Large Motion

Wrist mechanisms are important elements of robotic arms because they significantly affect the arm’s handling ability. Although various wrist mechanisms have been developed to date, a mechanism with a compact structure, a wide range of motion and a large load capacity has not yet been realized. Thus, in this paper, we propose 2-DOF Spherical Parallel (2DSP) mechanism, a heavy-duty wrist mechanism with a large motion range, and clarify its features both analytically and experimentally. The 2DSP mechanism is driven by a 2-DOF spherical parallel mechanism and is supported by a universal joint located at its center. This structure allows the 2DSP mechanism to realize a large motion range and load capacity and simplifies its kinematic analysis. Based on this analysis, we clarify the design process to maximize the motion range and propose a preferable structure of passive joints from the viewpoint of load capacity and production cost. We also describe the detailed design of a 2DSP mechanism for a rescue robot we developed previously and verify the feasibility of the proposed mechanism.

scholarly journals Optimal Design of a Damped Arbor for Heavy-Duty Machining of Giant Parts

2013 ◽  
Vol 7 (2) ◽  
pp. 171-186 ◽  
Author(s):  
Hideaki ONOZUKA ◽  
Koji UTSUMI ◽  
Tomu KATO ◽  
Hayato TAKAHASHI ◽  
Toshiyuki OBIKAWA
Keyword(s):  
Optimal Design ◽  
Heavy Duty

Dynamic modelling and optimal design of a clutch actuator for heavy-duty automatic transmission considering flow force

2020 ◽  
Vol 145 ◽  
pp. 103716 ◽  
Author(s):  
Tiancheng Ouyang ◽  
Guicong Huang ◽  
Shuoyu Li ◽  
Jingxian Chen ◽  
Nan Chen
Keyword(s):  
Optimal Design ◽  
Automatic Transmission ◽  
Dynamic Modelling ◽  
Heavy Duty

Optimal design and experimental investigation of teeth connection joint on a filament wound composite transmission shaft

2021 ◽  
Vol 63 (8) ◽  
pp. 748-757
Author(s):  
Rui Luo ◽  
Yong Li ◽  
Dajun Huan ◽  
Wuqiang Wang ◽  
Junsheng Wang ◽  
...  
Keyword(s):  
Finite Element ◽  
Optimal Design ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Torsional Strength ◽  
Press Fit ◽  
Transmission Shaft ◽  
The Press ◽  
Wound Composite

Abstract For limited weight reduction and avoidance of composite damage caused by the press mounting of the traditional metal teeth press-fit joint, a novel teeth connection joint technique of the fiber wound composite transmission shaft was investigated by theoretical analysis, finite element simulation, and experiment verification. Based on the mechanics of composite materials, the expressions of equilibrium torsional stiffness and static torsional strength were derived. According to the three-dimensional Chang-Chang failure criterion, its finite element model of progressive damage analysis was established through the user material subroutine. Applying the fast curing resin system, a typical sample of the structure was prepared through co-curing for the static torsional strength test, and its failure details of the fracture surface were observed by using a scanning electron microscope, which confirmed the validity of theoretical and numerical results. Based on this, the influence of the ply method and geometric characteristics on the failure strength was studied, and the optimal design of the joint was realized by the genetic algorithm. Compared with the press-fit joint, this structure reduces weight by 70 % under the same joint strength, which provides a new way for the connection of the composite transmission shaft.

Research on Air Deflector Optimal Design and Matching for Heavy-Duty Vehicle Based on Design of Experiment Technology

2013 ◽  
Vol 404 ◽  
pp. 188-193
Author(s):  
Jing Chen ◽  
Tao Song ◽  
Deng Feng Wang
Keyword(s):  
Optimal Design ◽  
Wind Tunnel ◽  
Drag Reduction ◽  
Wind Tunnel Test ◽  
Cfd Model ◽  
Heavy Duty ◽  
Cfd Simulations ◽  
Heavy Duty Vehicle ◽  
Fluent Software ◽  
Simulation Results

The drag reduction characteristic of air deflector of a heavy-duty vehicle is examined through CFD simulations and wind tunnel test in this paper. The CFD model of the truck is built using the FLUENT software and the simulation results are compared with the wind tunnel test data to verify the accuracy of simulation model. An air deflector is designed for this truck, A design of experiments approach was chosen as an efficient technique to optimize the design parameter and match with the truck to obtain the optimal drag reduction performance.

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