Research on the Steering Character for Kiloton all Terrain Crane

2014 ◽  
Vol 1078 ◽  
pp. 187-190
Author(s):  
Zhong Ying Liu
Keyword(s):  
Deflection Angle ◽  
Steering System ◽  
Front Wheel ◽  
All Wheel Steering ◽  
Turning Radius ◽  
Minimum Turning Radius ◽  
Vehicle Capacity ◽  
Relationship Of ◽  
The Relationship ◽  
Two Degree Of Freedom

Based on the two degree of freedom model of kiloton all-terrain crane, he effects of relationship of deflection angle on turning radius were investigated in multi-axle steering system. MATLAB/Simulink was used to analyze the relationship of every axle in multi-axle steering and optimize the minimum turning radius. The studies show that the kiloton all-terrain crane adapted all-wheel steering driving at 5speed , and the front wheel angle was 32.3°, as compared to the rolling radius before optimization, the turning radius in all wheel turnaround reduced by 33%, which improved the vehicle capacity through the complex curve and increased the vehicle steering flexibility.

Calculation and Analysis of Minimum Turning Radius of Articulated Electric-Wheel Material-Carrier Based on ADAMS

2014 ◽  
Vol 556-562 ◽  
pp. 1092-1095
Author(s):  
Shuang Long Li ◽  
Wei Xiong
Keyword(s):  
Virtual Prototype ◽  
Motion Simulation ◽  
Vehicle Model ◽  
Full Vehicle ◽  
Turning Radius ◽  
Minimum Turning Radius ◽  
Prototype Software ◽  
The Relationship ◽  
Wheel Material

Calculate the minimum turning radius of articulated material-carrier in theory, and establish a full-vehicle model for motion simulation to obtain the minimum turning radius with the application of virtual prototype software ADAMS, then compare the theoretical value with simulation value. Analyze the relationship between the position of articulated point in the material-carrier and the minimum turning radius.

Dynamic Analysis of a Robotic Fish Propelled by Flexible Folding Pectoral Fins

Robotica ◽  
2019 ◽  
Vol 38 (4) ◽  
pp. 699-718 ◽  
Author(s):  
Van Anh Pham ◽  
Tan Tien Nguyen ◽  
Byung Ryong Lee ◽  
Tuong Quan Vo
Keyword(s):  
Power Stroke ◽  
Swimming Velocity ◽  
Force Model ◽  
Flexible Joints ◽  
Pectoral Fin ◽  
Pectoral Fins ◽  
Recovery Stroke ◽  
Turning Radius ◽  
Relationship Of ◽  
The Relationship

SUMMARYBiological fish can create high forward swimming speed due to change of thrust/drag area of pectoral fins between power stroke and recovery stroke in rowing mode. In this paper, we proposed a novel type of folding pectoral fins for the fish robot, which provides a simple approach in generating effective thrust only through one degree of freedom of fin actuator. Its structure consists of two elemental fin panels for each pectoral fin that connects to a hinge base through the flexible joints. The Morison force model is adopted to discover the relationship of the dynamic interaction between fin panels and surrounding fluid. An experimental platform for the robot motion using the pectoral fin with different flexible joints was built to validate the proposed design. The results express that the performance of swimming velocity and turning radius of the robot are enhanced effectively. The forward swimming velocity can reach 0.231 m/s (0.58 BL/s) at the frequency near 0.75 Hz. By comparison, we found an accord between the proposed dynamic model and the experimental behavior of the robot. The attained results can be used to design controllers and optimize performances of the robot propelled by the folding pectoral fins.

Design of Steering Trapezoidal Mechanism for FSC Racing Base on Matlab

2013 ◽  
Vol 647 ◽  
pp. 885-890
Author(s):  
Chang Zheng Shi ◽  
Zhong Xiu Shi ◽  
Tian Tian Wang
Keyword(s):  
Service Life ◽  
Steering System ◽  
Analytic Method ◽  
Matlab Software ◽  
The Road ◽  
Relationship Of ◽  
The Relationship

The design of steering trapezoidal mechanism is one of the important aspects of the vehicle steering system. Every parameterin steering trapezoidal has significant influences on the steering performance, stability and tire service life of the vehicle.Based on the analysis of the relationship of the inside and outside wheel angle by analytic method, Matlab software can be used to design FSC racing steering trapezoidal mechanism. Considering the conditions of the automobile race,the corresponding parameter of the steering trapezoid is designed to make the relationship of the l wheel angle close to Ackermann geometry relationship, which reduces the wear of tires, ensuring good steering performance and holding the road so well.

Matching Design of Assist Characteristic for Electric Hydraulic Power Steering System of Electric Bus

2013 ◽  
Vol 427-429 ◽  
pp. 235-240 ◽  
Author(s):  
Guo Biao Shi ◽  
Jin Long Cui ◽  
Peng Gu
Keyword(s):  
Characteristic Curve ◽  
Steering System ◽  
Steering Wheel ◽  
Vehicle Speed ◽  
Power Steering ◽  
Electric Bus ◽  
Relationship Of ◽  
Hydraulic Power Steering System ◽  
Hydraulic Power Steering ◽  
The Relationship

Electric hydraulic power steering system (EHPS) has the characteristics of high energy efficiency and reliability. In this paper, we focus on the design and analysis of assist characteristic for EHPS of electric bus. The relationship of steering assist power, steering wheel torque and steering resisting torque was analyzed; steering system model and vehicle dynamic model were built. By EHPS simulation, the relationship of pump flow rate, steering wheel angular velocity and vehicle speed was deduced and 3-D assist characteristic curve map was plotted, which was suitable for electric bus. In order to apply the assist characteristic curve into practice, we optimized the curve through BP neural network, and then obtained the assist power value under any vehicle speed and steering wheel angular velocity. Finally, EHPS simulation verified the optimized assist characteristic curve having a good performance.

scholarly journals STUDY OF FOUR-WHEEL STEERING SYSTEMS’ VIABILITY IN FUTURE AUTOMOBILES

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Aayush Soni ◽  
Adarsh Sahu ◽  
Prakhar Shrivastava ◽  
Shubhrata Nagpal
Keyword(s):  
High Speed ◽  
Rear Wheel ◽  
Steering System ◽  
Front Wheel ◽  
Low Speed ◽  
Medium Speed ◽  
Turning Radius

- Presently, all vehicles have a two-wheel steering system irrespective of the vehicle being front wheel driven, rear wheel driven or all-wheel driven. A four-wheel steering system known as “quadra steering” system is a system in which both the front wheels and rear wheels get steered according to the speed of the vehicle and space available for turning. This system makes the vehicle more stable and enhances its performance. In this report, the performance of quadra steering system has been considered under low speed, medium speed and high-speed conditions. For parking and low speed conditions, rear wheels are turned in the opposite directions while at medium and high-speed conditions, rear wheels and front wheels are turned in the same direction. As a result, the vehicle becomes more stable and its turning radius reduces greatly.

The Design and Characteristic Analysis of the Steering System of Balanced Rocker Wheeled Chassis

2015 ◽  
Vol 743 ◽  
pp. 3-10
Author(s):  
Xiao Lin Xie ◽  
Feng Gao
Keyword(s):  
Angular Velocity ◽  
Mechanical Model ◽  
Steering System ◽  
Front Wheel ◽  
Control Methods ◽  
Characteristic Analysis ◽  
Adams Software ◽  
Simulation Results ◽  
Two Degree Of Freedom ◽  
Proportional Feedback

According to the particularity of balanced rocker wheeled chassis, a four wheel independent steering system was designed. The chassis of the two degree of freedom model was established, the proportional feedback control of yawing angular velocity and front wheel Angle-yawing angular velocity was simulated, the chassis steering performance under the two classic control methods was analyzed, then the dynamics of mechanical model was established in ADAMS software, the steering performance under different speed was simulated. At last, compared with two simulation results, it was proved that the steering system has good handling stability.

All Wheel Steering System

2015 ◽  
Vol 7 (02) ◽  
pp. 105-108
Author(s):  
Sanjay Kumar Singh ◽  
Sanjay Kumar Sharma ◽  
Akhilesh Kumar Verma
Keyword(s):  
Steering System ◽  
Vehicle Stability ◽  
Handling System ◽  
Low Speed ◽  
Steering Mechanism ◽  
All Wheel Steering ◽  
Response Increase ◽  
Vehicle Response ◽  
Turning Radius ◽  
System Mechanism

Now a days most of the vehicles are use the two wheel steering system mechanism as their main handling system but, the efficiency of two wheel steering vehicle is proven to be low compared to all wheel steering vehicles. All wheel steering system can be employed in some vehicles to improve vehicle response, increase vehicle stability while moving at certain speed, or to decrease turning radius at low speed. All wheel steering is a technologically, tremendous effort on heavy loaded vehicles. Hence, there is a requirement of a mechanism which result in less turning radius and it can be achieved by implementing all wheel steering mechanism instead of regular two wheel steering.

Measuring Theory Research on the Automobile Steering Angle Automatic Measuring System

2013 ◽  
Vol 655-657 ◽  
pp. 731-734
Author(s):  
Hu Dai Fu ◽  
Zheng Zhong Wang
Keyword(s):  
Steering System ◽  
Measuring System ◽  
Test Results ◽  
Automatic Measuring ◽  
Steering Angle ◽  
Turning Radius ◽  
Minimum Turning Radius ◽  
Theory Research ◽  
Infrared Tracking ◽  
Measuring Plate

It is studied that a great proportion of traffic problems lies in vehicles’ steering system, and the maximum steering angle decides their steering capability and their minimum turning radius. The measuring principle of rapid measuring system, and the automatic tracking principle of measurement system have been analyzed in the paper. Also, the infrared tracking, the measuring plate positioning, the calculation of minimum turning radius, and the processing method of the test results have been described in detail. It is proved that the automatic automobile steering angle detecting system has reached the general requirements both in detection resolution and the measuring accuracy.

Analysis of Influence for Steering Performance of Vehicle on Road Surface Roughness

2013 ◽  
Vol 303-306 ◽  
pp. 2811-2815
Author(s):  
Chun Li Yan ◽  
Yan Ling Guo
Keyword(s):  
Surface Roughness ◽  
Mechanical Model ◽  
Degrees Of Freedom ◽  
Road Surface ◽  
Theoretical Derivation ◽  
Yaw Rate ◽  
Turning Radius ◽  
Road Surface Roughness ◽  
Relationship Of ◽  
The Relationship

It is very important that the flexible tires have some effects on the movement of the vehicle. To analyze the influence of the flexible tire on different road surface roughness in the steering movement of the vehicle, the paper cites the traditional two degrees of freedom (2-DOF) model for steering movement of vehicle, analyzes deformation of the tires when the flexible tires scroll on the hard and soft road surface. The paper establishes mechanical model about the relationship of the tires and different road surface, and advances mathematics equation in the typical 2-DOF model. To verify theoretical derivation the tests of steering motion of the vehicle are done on the different road surface roughness.The results show that yaw rate of the vehicle is very different on the soft and hard road surface when the vehicle steers along the same turning radius path and at the same speed. The results illustrate that analysis of theory is right.

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