Fire Rescue Robot Design Based on Solidworks

2014 ◽  
Vol 940 ◽  
pp. 254-257
Author(s):  
Rong Zhang ◽  
Wen Ping Wang ◽  
Zhi Qiang Shi ◽  
Jun Hu ◽  
Peng Fei Xu ◽  
...  
Keyword(s):  
Simulation Model ◽  
Mechanical Design ◽  
Robot Design ◽  
Software Simulation ◽  
Rescue Robot ◽  
Structure Reliability ◽  
Overall Performance ◽  
The Stability ◽  
Theory Research ◽  
3D Software

This paper introduces the fire rescue the robot's stability of the mechanical design and theory research. Through the Solidworks 3d software simulation model is established, and summarizes the analysis of its mechanical structure reliability and the stability of the overall performance, help to promote the equipment used in our country in the process of fire rescue..

Dynamics and Controller Design of a Screw Wheel Drive Holonomic Rescue Robot

2012 ◽  
Author(s):  
Emin Faruk Kececi
Keyword(s):  
Adaptive Control ◽  
Control Algorithm ◽  
Controller Design ◽  
Mechanical Design ◽  
Future Research ◽  
Rescue Robot ◽  
Wheel Drive ◽  
The Stability ◽  
Adaptive Control Algorithm ◽  
Future Work

This paper reports a holonomic rescue robot where the robot is driven by screw wheels. The necessity of a such platform is explained and the mechanical design and the actual prototype are presented. In order to design an adaptive control algorithm to ensure the trajectory tracking, the dynamical model is constructed. The stability of the adaptive control algorithm is proven with Lyapunov stability analysis. The necessary electronics to implement the controller algorithm is explained and the conclusions and future work section reports the results of the study as well as the future research directions.

Optimal Design and Fabrication of “CEDRA” Rescue Robot Using Genetic Algorithm

2004 ◽  
Author(s):  
A. Meghdari ◽  
H. N. Pishkenari ◽  
A. L. Gaskarimahalle ◽  
S. H. Mahboobi ◽  
R. Karimi
Keyword(s):  
Genetic Algorithm ◽  
Mechanical Design ◽  
Design Parameters ◽  
Robot Design ◽  
Preliminary Step ◽  
Laboratory Environment ◽  
Rescue Robot ◽  
Optimum Parameters ◽  
And Control ◽  
Clean Laboratory

This article presents an overview of the mechanical design features, fabrication and control of a Rescue Robot (CEDRA) for operation in unstructured environments. As a preliminary step, the essential characteristics of a robot in damaged and unstable situations have been established. According to these features and kinematical equations of the robot, design parameters are optimized by means of Genetic Algorithm. Optimum parameters are then utilized in construction. Upon fabrication, this unit has been tested in clean laboratory environment, as well as, ill-conditioned arenas similar to earthquake zones. The obtained results have been satisfactory in all aspects, and improvements are currently underway to enhance capabilities of the rescue robot unit for various applications.

scholarly journals Enhancement the stability of power system using optimal location of FACTS devices

2020 ◽  
Vol 18 (2) ◽  
pp. 648
Author(s):  
Ali Najim Abdullah ◽  
Ahmed Majeed Ghadhban ◽  
Hayder Salim Hameed ◽  
Husham Idan Hussein
Keyword(s):  
Power Network ◽  
Performance Factors ◽  
Facts Devices ◽  
Clearing Time ◽  
Thyristor Controlled Series Capacitor ◽  
Overall Performance ◽  
Set Up ◽  
The Stability ◽  
And Control ◽  
Better Than

<p><span>This paper proposes a steady-state of the Static Var Compensator (SVC) &amp; Thyristor Controlled Series Capacitor (TCSC) set up for enhancing the damping overall performance and growing the integral clearing time (CCT) of a power network. The indispensable clearing time is carried out through increasing the time fault interval until the gadget loses stability. Increasing the CCT can be contribute to reliability of the safety gadget, decrease the protection machine ranking and cost. In order to attain most enhancement of machine stability via optimizing location, sizing and control modes of SVC and TCSC. Models and methodology for putting and designing shunt FACT’s units SVC (injected reactive strength Q) and series FACT’s devices TCSC (chose capacitive region) are examined in a 6-bus system. Performance factors are described to show validation of SVC and TCSC on extraordinary conditions. It is proven that the SVC is better than TCSC. </span></p>

The Stability of Weft Insertion of CRT – 83 Carpet Rapier Loom

2013 ◽  
Vol 457-458 ◽  
pp. 684-687
Author(s):  
Yong Dong Cai ◽  
Shun Bin Ma
Keyword(s):  
Theoretical Analysis ◽  
Initial Deformation ◽  
Weft Yarn ◽  
High Grade ◽  
Release Times ◽  
Factors Influencing ◽  
Main Factors ◽  
The Stability ◽  
Theory Research

CRT- 83 carpet rapier loom is a kind of high-grade rigid rapier loom，the weft yarn will give looms to demand higher stability of the weft insertion. Theoretical analysis based on the theory research of the stability of clamping weft and weft handover shows that the rapier deformation，slipping force and the depth of clamping are main factors influencing the stability of weft insertion.In order to obtain reasonable process of weft insertion，concerned with the following factors：the grip length and outrigger length of rapier，release times of clip yarn device，initial deformation angle of spring piece.

Novel Direct Model for Machining Regenerative Chatter

2016 ◽  
Author(s):  
Aaron Lalley ◽  
Mark Bedillion
Keyword(s):  
Simulation Model ◽  
Machining Process ◽  
Direct Simulation ◽  
Regenerative Chatter ◽  
Stability Lobe ◽  
Direct Model ◽  
Machining Chatter ◽  
The Stability ◽  
Time Information ◽  
New Time

Regenerative machining chatter or resonance in the machining process has traditionally been modeled with the stability lobe approach. This paper presents a new time based direct simulation model and compares it with traditional stability lobe modeling. The direct model has the ability to discriminate directional and time information, resulting in a number of advantages over frequency-based stability lobe analysis.

Environmental Modeling and Walking Simulation of Quadruped Search-Rescue Robot Based on VRML

2014 ◽  
Vol 494-495 ◽  
pp. 1270-1273
Author(s):  
Peng Wang ◽  
Ji Xiang Li ◽  
Yuan Zhang ◽  
Wen Hao Jiang
Keyword(s):  
Simulation Model ◽  
Environmental Modeling ◽  
Modeling Language ◽  
Displacement Curve ◽  
Rescue Robot ◽  
Modeling Technology ◽  
Real Environment ◽  
Simulation Results

In order to create the virtual earthquake environment, VRML modeling language is used to build a real environment that is a 3D mountain scene after earthquake. A simulation model of quadruped search-rescue robot is established in VRML modeling technology. The walking stability of quadruped search-rescue robot is observed using the VRML model established with the change of gravity curve. Simulation results show that the gravity displacement curve of the robot is smooth.

Research of Velocity Stability of Separate Meter in and Separate Meter out Control System for Over-Running Load

2015 ◽  
Vol 727-728 ◽  
pp. 752-756
Author(s):  
Zhong Yi Cao ◽  
Xin Ming Liu ◽  
Wan Rong Wu
Keyword(s):  
Control System ◽  
Simulation Model ◽  
Hydraulic System ◽  
The Novel ◽  
Velocity Control ◽  
Factors Affecting ◽  
Simulation And Experiment ◽  
The Stability

There are some defects in the traditional over-running load hydraulic system, such as velocity control is poor and prone to velocity jitter, etc. In order to improve these weaknesses, the components and work principle of the separate meter in and separate meter out (SMISMO) were introduced and the actuator’s feature were analyzed , the simulation model of hydraulic studied system was built, the factors affecting the stability of the system are discussed in this paper. Simulation and experiment showed that the novel control system possessed higher velocity control precise and good stable characteristics.

An Iterative Algorithm to Determine the Dynamic User Equilibrium in a Traffic Simulation Model

1998 ◽  
Vol 09 (03) ◽  
pp. 393-407 ◽  
Author(s):  
C. Gawron
Keyword(s):  
Probability Distribution ◽  
Simulation Model ◽  
Iterative Algorithm ◽  
Traffic Simulation ◽  
User Equilibrium ◽  
Dynamic User Equilibrium ◽  
Queuing Model ◽  
Travel Costs ◽  
Dynamic Version ◽  
The Stability

An iterative algorithm to determine the dynamic user equilibrium with respect to link costs defined by a traffic simulation model is presented. Each driver's route choice is modeled by a discrete probability distribution which is used to select a route in the simulation. After each simulation run, the probability distribution is adapted to minimize the travel costs. Although the algorithm does not depend on the simulation model, a queuing model is used for performance reasons. The stability of the algorithm is analyzed for a simple example network. As an application example, a dynamic version of Braess's paradox is studied.

Grinding Cutter Design of Involute Straight Bevel Gear Based on Central Projection Method

2011 ◽  
Vol 271-273 ◽  
pp. 939-944 ◽  
Author(s):  
Guo Xing Zhang ◽  
Zhi Yong Hu ◽  
Shao Hua Qian ◽  
Zhi De Wang ◽  
Yong Zhi Gong
Keyword(s):  
Simulation Model ◽  
Projection Method ◽  
Mechanical Design ◽  
Tooth Profile ◽  
Bevel Gear ◽  
Central Projection ◽  
Straight Bevel Gear ◽  
Mapping Software ◽  
Cutter Design ◽  
Model Database

In order to establish precise grinding cutter model of straight bevel gear, this study projects the spherical involute that forms tooth profile of bevel gear into the involute of circle approximately, and makes a simulation model database of bevel gear according to the principle of mechanical design on the basis of CAD mapping software. With the central projection method, processing devices and cutters of involute straight bevel gear can also be designed which has no concern with modulus. The results show that the establishment of simulation database and processing cutters can greatly facilitate the design and processing of straight bevel gear, greatly reduce the design and finishing costs, and is also helpful to teaching training of gear.

scholarly journals Comparison of Methods Analyzing Bifurcation and Hunting of Complex Rail Vehicle Models

2012 ◽  
Vol 7 (4) ◽  
Author(s):  
Oldrich Polach ◽  
Ingo Kaiser
Keyword(s):  
Mechanical Design ◽  
Path Following ◽  
Time Interval ◽  
Hunting Behavior ◽  
Direct Computation ◽  
Detailed Model ◽  
Brute Force Method ◽  
Railway Passenger ◽  
The Stability ◽  
Comparison Of The Results

The stability assessment is an important task in the mechanical design of railway vehicles. For a detailed model of a railway passenger coach, the hunting behavior depending on the running speed, on wheel-rail contact conditions, and on different model configurations is analyzed using two different methods: The path-following method based on a direct computation of limit cycles enables an automatic computation. However, due to the direct computation, which exploits the periodicity of the solution, this method is restricted to strictly periodic behavior. In the brute-force method, an initial disturbance limited to a certain time interval is applied to the model. This method allows the analysis of the behavior independently from the type of the solution, but requires manual intervention. The comparison of the results obtained with both methods shows a good agreement and thereby the reliability of the results and the methods.

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