Structural Optimization Design of Quadruped Robot Based on Virtual Prototype Technology

2015 ◽  
Vol 12 (12) ◽  
pp. 4659-4668
Author(s):  
Jinrong Zhang
2011 ◽  
Vol 346 ◽  
pp. 353-358
Author(s):  
Juan Wei ◽  
Hong Wei Ma

To a virtual prototype technology for tools,to a movement stationary of the carrier robot for goal, studied on the parametric optimization method based on virtual prototype technology. The paper designed the carrier robot mechanical structure and established the robot parameterization model in Solid Works, divided the robot into twelve rigid bodies, sixteen hinges and two elementary forces. Transferred the rigid bodies models into Universal Mechanism, added the bound hinges and the elementary forces, set the track irregularity model and path model. By computer simulations technology, took the wheelbase for example, introduced the selection method of the best value. The method can be applied to make certain the other parameters of the robot.


2009 ◽  
Vol 419-420 ◽  
pp. 97-100
Author(s):  
Jing Qiu Tang ◽  
Yan Bin Cui

In this paper, the virtual prototype technology is used for the analyzing and optimizing high voltage breaker actuator’s cam machine. While the high voltage breaker closing, the moving contactor can have the perfect dynamic property by the optimal data. The contactor’s dynamic property curve should be in line with perfect dynamic property curve. The velocity curve can be gotten by analyzing virtual prototype. According to the theory of high voltage breaker’s dynamic property, a smooth voltage curve can be fitted. This fitting curve as the perfect voltage curve can be used for optimizing the cam machine. Supposing other work condition is invariable, the key points on cam profile which decide the dynamic property of the cam machine are analyzed. The coordinates of the key points are optimized and the cam profile is amended. Analyzing the dynamic property of the breaker’s virtual prototype with the amended cam machine, the contactor’s dynamic property curve is perfect. In this paper, the optimal coordinates of the key points are used on the cam profile, and the high voltage breaker actuator’s cam machine is optimal.


2014 ◽  
Vol 490-491 ◽  
pp. 533-537
Author(s):  
Li Zhang ◽  
Jin Ling Xing ◽  
Bao Hua Chang ◽  
Lei Wei

Using Solidworks establish the virtual prototype of the conventional beam pumping unit. After that, by using ADAMS moves on to the kinematics simulation of prototype, detailed the polished rod motion parameters curves are present. When compared the results with the calculation results of accurate analysis method, discovered that these two results of different methods coincide quite well, and the reliabilities of simulation results of using virtual prototype technology. are validated. The optimal design of pumping unit skeletal structure parameters is explored in this paper, taking the polished rod acceleration as objective functions. From the simulation solution, we get the optimal structure and size of pumping unit. Virtual prototype technology provides a kind of economical, fast and reliable way to design and optimize structure of the pumping unit.


2014 ◽  
Vol 496-500 ◽  
pp. 749-753
Author(s):  
Yan Fang Wang ◽  
Bo Yang

Swing movable teeth reducer is a new type of small teeth difference planetary gear transmission. As a new product development technology, virtual prototype technology is a digital design method based on the product simulation model. It is important to carry on the performance simulation of the reducer and seek the optimization design of the products on virtual prototype technology. Based on the study on the principle and structure of the swing movable teeth transmission, it analyzed the motion of the system, carried on the dynamical simulation of the swing movable teeth reducer, which is established on the virtual prototype. At the same time, the paper analyzed the dynamical simulation on the rotational speed and force of the mainly parts.


2013 ◽  
Vol 341-342 ◽  
pp. 519-523
Author(s):  
Ya Hui Zhang ◽  
Ji Hong Zhu ◽  
Jun Shuo Li ◽  
Wei Hong Zhang

The problem of metal-composite wing structural optimization is discussed and a strategy is presented. Topology optimization method is applied to provide load transferring path of structure for concept design. Size, shape and other optimization method are used to provide detailed design for individual components. A three-phase optimization method is discussed for fiber reinforced composite laminate skin. Optimal parameters include ply angle, percentage, thickness, layer shape and sequence. The design of laminate for ease of manufacture is based on a set of manufacturing constraints. This paper deals with a total optimal design solution for aileron structure of an aircraft. The result satisfies all the requirements of strength and stability, and has obvious effect of weight loss.


2018 ◽  
Vol 24 (3) ◽  
pp. 539-547 ◽  
Author(s):  
Zefeng Xiao ◽  
Yongqiang Yang ◽  
Di Wang ◽  
Changhui Song ◽  
Yuchao Bai

Purpose This paper aims to summarize design rules based on the process characteristics of selective laser melting (SLM) and structural optimization and apply the design rules in the lightweight design of an aluminum alloy antenna bracket. The design goal is to reduce 30 per cent of the weight while maintaining the stress levels in the original part. Design/methodology/approach To reduce weight as much as possible, the titanium alloy with higher specific strength was selected during the process of optimization. The material distribution of the bracket was improved by the topology optimization design. The redesign for SLM was used to obtain an optimization model, which was more suitable for SLM. The component performance was improved by shape optimization. The modal analysis data of the structural optimization model were compared with those of the stochastic lightweight model to verify the structural optimization model. The scanning data were compared with those of the original model to verify whether the model was suitable for SLM. Findings Structural optimization design for antenna bracket realized the mass decrease of 30.43 per cent and the fundamental frequency increase of 50.18 per cent. The modal analysis data of the stochastic lightweight model and the structural optimization model indicated that the optimization performance of structural optimization method was better than that of the stochastic lightweight method. The comparison results between the scanning data of the forming part and the original data confirmed that the structural optimization design for SLM lightweight component could achieve the desired forming accuracy. Originality/value This paper summarizes geometric constraints in SLM and derives design rules of structural optimization based on the process characteristics of SLM. SLM design rules make structural optimization design more reasonable. The combination of structural optimization design and SLM can improve the performance of lightweight antenna bracket significantly.


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