Analysis of Climbing Obstacle Capability and its Influential Factors of Omni-Directional Wheeled Robot

2012 ◽  
Vol 591-593 ◽  
pp. 717-721 ◽  
Author(s):  
Ai Cheng Li ◽  
Huo Hong Tang ◽  
Bao Lin Feng ◽  
Lu Li
Keyword(s):  
Theoretical Foundation ◽  
Simulation Analysis ◽  
Influential Factors ◽  
Mechanics Model ◽  
Wheeled Robot ◽  
Obstacle Height

The perpendicular climbing obstacle capability of omni-directional wheeled robot was studied, based on simplified mechanics model. The relation between influential factors and perpendicular climbing obstacle height was given under two conditions: simultaneously climbing obstacle by two front wheels and simultaneously climbing obstacle by two rear wheels. Then maximum perpendicular climbing obstacle height of this omni-directional wheeled robot was calculated. Simulation analysis to the result by MATLAB was done. The simulation analysis gave theoretical foundation to the climbing obstacle capability of omni-directional wheeled robot.

The Research and Simulation Analysis of a New Type of Translational Transmission Device

2014 ◽  
Vol 556-562 ◽  
pp. 1408-1412
Author(s):  
Zhi Qiang Zhang
Keyword(s):  
Modeling And Simulation ◽  
Theoretical Foundation ◽  
Simulation Analysis ◽  
Structural Modeling ◽  
Structural Features ◽  
Practical Application ◽  
Optimization Analysis ◽  
New Type ◽  
Mechanism Parameter ◽  
Relationship Of

In this paper, the following work is done: a new type of translational transmission device is designed; explained in detail are the operating principle, structural features, relationship of mechanism parameter and non interference conditions of the movement; the optimization analysis of transmission device is implemented on the basis of non interference conditions of the bucket movement; structural modeling and simulation analysis are carried out by utilization of Pro/e & Recurdyn; and based on virtual prototype technology, the new type of translational transmission device is verified by experiments, the data of which prove the translational transmission device reasonable and practicable. In conclusion, this paper has laid the theoretical foundation of the practical application of the translational transmission device.

Determining bucket structures in pricing plans for private user cloud computing storage services

2016 ◽  
Vol 11 (2) ◽  
pp. 612-643 ◽  
Author(s):  
Torsten J. Gerpott ◽  
Sebastian May
Keyword(s):  
Cloud Computing ◽  
Simulation Analysis ◽  
Influential Factors ◽  
Average Price ◽  
Storage Unit ◽  
Content Type ◽  
Lump Sum ◽  
Demand Heterogeneity ◽  
Tariff Structures ◽  
Tariff Structure

Purpose Providers of cloud computing storage services (CCSS) charge offers in several unit bundles for a lump sum per bundle. This non-linear pricing approach is known as a bucket-pricing plan (BPP). If a customer exploits the purchased bucket, he/she can opt for the next higher bucket or refrain from further CCSS use. CCSS suppliers are faced with an optimization problem concerning the number of buckets as well as their lower and upper storage volume boundaries. The purpose of this paper is to develop a model, which supports CCSS suppliers in deriving a BPP-structure and which maximizes their profit in varying market constellations. Design/methodology/approach The authors develop a multi-period model of tariff choice decisions of private customers of CCSS. The model is applied in Monte Carlo simulations to determine profit-maximal tariff structures as a function of different market characteristics such as median demand saturation, demand heterogeneity, average price per storage unit and bucket ceiling allocation (identical size of each bucket within the frame set by the lower and upper overall boundary, varying sizes of the buckets offered, so that the interval between two ceilings consecutively increases for subsequent buckets) and type of a customer’s utility function. Findings The simulation analysis suggests that demand heterogeneity and average price per unit are the most influential factors for CCSS tariff structure optimization. Price plans with more than two buckets tend to generate higher profits than simple schemes with two buckets only if demand heterogeneity is low and the average price per storage unit is high and/or median saturation level of customers is low. Originality/value Despite the popularity of BPP among providers of CCSS for consumers, there is a lack of scholarly modeling work on the profit implications of the number of buckets entailed in a scheme and the size/ceilings of the various buckets on offer. The model suggested in this paper is a first step toward narrowing this research gap.

Simulation of Ride Comfort of Tracked Vehicle Based on Road Random Excitation

2012 ◽  
Vol 479-481 ◽  
pp. 93-97 ◽  
Author(s):  
Pi Jing Liu ◽  
Liang Hou ◽  
Wen Guang Lin ◽  
Xiu Yi Yu ◽  
Wei Huang
Keyword(s):  
White Noise ◽  
Theoretical Foundation ◽  
Ride Comfort ◽  
Simulation Analysis ◽  
Random Excitation ◽  
Tracked Vehicle ◽  
Road Roughness ◽  
Simulation Based ◽  
Set Up ◽  
Vertical Jumps

By simplifying the triangular tracked engineer vehicle into dynamic model of half-tracked vehicle with five freedom degrees which includes four vertical jumps and one rotation, a corresponding dynamic differential equation is set up to each degree of freedom. A method of road roughness simulation, based on the time series of White Noise, is also represented and then verified. The simulation analysis of the tracked vehicle ride comfort is built on MATLAB/SIMULINK, based on the incentive signal of an imitated road. The simulation results show that the method that White Noise generated road roughness is applicable and prove efficient in the ride comfort research of the triangular tracked engineer vehicle. Thus a theoretical foundation is established for the optimization for ride comfort of the triangular tracked engineer vehicle.

The Obstacle-Surmounting Process Simulation of Arm-Swing Wheeled Robot Based on MATLAB

2011 ◽  
Vol 199-200 ◽  
pp. 1244-1248
Author(s):  
Li Gong ◽  
Yu Feng Ding ◽  
Bu Yun Sheng ◽  
Dong Dong Che
Keyword(s):  
Simulation Analysis ◽  
Mathematic Model ◽  
Test Results ◽  
Complex Environment ◽  
Arm Swing ◽  
Wheeled Robot ◽  
Resistance Moment ◽  
Physical Prototype ◽  
Three Stages ◽  
The Stability

Considering complex environment of disaster site, an Arm-swing Wheeled Robot (AWR) with auxiliary obstacle-surmounting mechanism was developed. The obstacle-surmounting process is simplified into three stages, and the mathematic model of kinematic for each stage has been established. The simulation for each stage of obstacle-surmounting has been carried out in MATLAB. The stability of obstacle-surmounting is analyzed and the trend of resistance moment is obtained. Finally, the effectiveness of simulation analysis is verified by comparing with the test results of physical prototype.

Mechanical Analysis and Experimental Research of Working in the Earth Helical Blade

2015 ◽  
Vol 741 ◽  
pp. 143-146
Author(s):  
Bing Bing Yan ◽  
Wen Bo Ren ◽  
Bao Lin Yin ◽  
Lian Jun Zhang ◽  
Jun Fa Wang
Keyword(s):  
Theoretical Foundation ◽  
Subsequent Development ◽  
Mechanical Analysis ◽  
Mechanics Model ◽  
The Earth ◽  
Blade Width ◽  
Helical Blade ◽  
Series Of Experiments ◽  
Driving Torque ◽  
The Relationship

Based on the Rankine earth mechanics theory, the mechanics model that the helical blade working in earth is simplified in this paper, and an experimental platform for discovery the relationship that between helical blade structure parameters and the driving torque is designed when the helical blade working in the earth. Through a series of experiments, comparative analysis the effect of the helical blade width, pitch on the driving torque, the experimental results verified the feasibility of the helical blade operation way of working in the earth, which laid the theoretical foundation for the subsequent development of the spiral in the earth device.

scholarly journals Will Increasing Government Subsidies Promote Open Innovation? A Simulation Analysis of China’s Wind Power Industry

2021 ◽  
Vol 13 (23) ◽  
pp. 13497
Author(s):  
Wei Gao ◽  
Daojuan Wang
Keyword(s):  
Open Innovation ◽  
Simulation Analysis ◽  
Innovation Policy ◽  
Cooperative Behavior ◽  
Empirical Studies ◽  
Dynamic Game ◽  
Absorption Capacity ◽  
Influential Factors ◽  
Positive Role ◽  
Mediating Role

Keeping open innovation both stable and sustainable can be difficult when it involves cooperation between large enterprises. Some empirical studies suggest that subsidy policies can play a positive role. This study addresses two key questions that follow from this observation: first, if the intensity of a subsidy policy is increased, can it play a greater role in strengthening the stability of cooperation between firms? Second, what other factors play a mediating role in this effect? Utilizing a dynamic game model, this paper analyses influential factors such as absorptive capacity, frequency of engagement and technical value on cooperative stability, and investigates the role of innovation policy in the process of cooperation through a random number-driven simulation. The findings indicate that only when the absorption capacity and technological value of both partners meet a certain threshold is the probability of positive cooperative behavior improved. Otherwise, increased subsidies tend to foster negative cooperative behavior instead.

Electromagnetic Simulation and Dynamic Analysis about the Electromagnetic Propelling System of Magnetic Suspension Launcher

2014 ◽  
Vol 599-601 ◽  
pp. 306-311
Author(s):  
Yun Sheng Zhang ◽  
Xiao Ning Chen ◽  
Li Yang Huang ◽  
Peng Chen
Keyword(s):  
Electromagnetic Field ◽  
Dynamic Analysis ◽  
Simulation Analysis ◽  
Linear Motor ◽  
Electromagnetic Theory ◽  
Influential Factors ◽  
Magnetic Suspension ◽  
Theoretical Research ◽  
Electromagnetic Simulation ◽  
Depth Study

Launcher is widely used in rescue and delivering items. On the basis of the electromagnetic theory, magnetic suspension principle and linear motor theory, we put forward the idea of magnetic suspension launcher. Through the theoretical research and simulation analysis, an in- depth study is also given to the distribution of the electromagnetic field and other influential factors concerning the propelling system, which provides the basis for the design of magnetic suspension launcher.

Kinematics and Mechanical Properties Analyses on Vibration Converter of Intelligent Damper for Drill Strings

2013 ◽  
Vol 5 (05) ◽  
pp. 671-687 ◽  
Author(s):  
Xiaohua Zhu ◽  
Chunlin Lai
Keyword(s):  
Coordinate System ◽  
Influential Factors ◽  
Dynamics Simulation ◽  
Contact Theory ◽  
Mechanics Model ◽  
World Coordinate System ◽  
Mechanical Models ◽  
Ball Diameter ◽  
Ultimate Result ◽  
Maximum Contact

AbstractTaking vibration converter of intelligent damper for drill strings as the study object, this paper analyzes the influential factors of motion state of the ball and conducts an explicit dynamics simulation by establishing a mechanics model of vibration converter. The study basis is Newton’s laws of motion, d’alembert’s principle and hertz contact theory. and we use world coordinate system, rotating coordinate system and Frenet coordinate system to deduce kinematics equations of vibration converter. The ultimate result demonstrates that the axial velocity and maximum contact stress change with the increment of ball diameter and helix angle.It also proves the validity of our derived kinematics and mechanical models and provides a good consultant value for the design and theoretical arithmetic of vibration converter for intelligent damper of drill strings.

A Study of Application about FLAC-3D in Damage of Rock Mass Slope

2006 ◽  
Vol 306-308 ◽  
pp. 1427-1432 ◽  
Author(s):  
Qi Xin Pan ◽  
Lai Shan Chang
Keyword(s):  
Rock Mass ◽  
Data Exchange ◽  
Damage Mechanics ◽  
Simulation Analysis ◽  
Jointed Rock ◽  
Jointed Rock Mass ◽  
Mechanics Model ◽  
South Slope ◽  
Flac 3D ◽  
Set Up

A damage mechanics model for jointed rock mass is established by the simulation of the multi-cleavage behaviour by introducing the damage tensor and by considering the jointed rock mass as continuous medium with damage. The data exchange technique with FLAC-3D is discussed by applying FISH Language that is inserted in FLAC-3D. The coupling analysis between the rock mass damage and FLAC-3D is realized by the computer program for damage mechanics analysis set up by Visual Basic, which is applied in the simulation analysis of the south slope of Yanqianshan Iron Mine.

Sign in / Sign up

Export Citation Format

Share Document