this is a type active suspension system. the presentation was 1st runner up for Mahindra automobiles india lmt. competition on solution to the better suspension system for sedans. few other types have also been discussed.
MODELLING SIMULATION AND CONTROL OF AN ACTIVE SUSPENSION SYSTEM IAEME Publication
Conventional passive suspension systems lag in providing the optimum level of performance. Passive suspensions are a trade-off between the conflicting demands of comfort and control. An active suspension system provides both comfort and control along with active roll and pitch control during cornering and braking. Thus it gives a ride that is level and bump free over an incredibly rough terrain. This paper is a review the active suspension system and the modelling, simulation and control of an active suspension system in MATLAB/Simulink. The performance of the system is
determined by computer simulation in MATLAB/Simulink. The performance of the system can be controlled and improved by proper tuning a proportional-integral-derivative (PID) controller.
automatic braking system and brake actuation before collisonashutosh singh
In this project the pneumatic bumper and brake is used to protect the man and vehicle. This system is only activated when any obstacle comes in front of vehicle, the obstacle is sensed by sensor and it gives the signal to the control unit and due to this bumper system and braking system activated. Bumper is energized by compressor and it compressed the air and send it to the pneumatic piston. This system is used in any type of light vehicles.
crash testing of cars,types of crash testing, how crash testing is done, dummies and its uses in crash testing crash absorption mechanism,safety features in cars
The report was done to develop a MATLAB model of a suspension system of a 4 wheel vehicle going over an uneven road. A simulink model was developed to simulate the various forces acting on the suspension of the vehicle.
PNEUMATIC VEHICLE ACTIVE SUSPENSION SYSTEM USING PID CONTROLLERTushar Tambe
The slide contains the simulation of pneumatic active suspension behavior on different road surface. These results shows the active suspension with controllers works effectively,if feedback loop is provided.
this is a type active suspension system. the presentation was 1st runner up for Mahindra automobiles india lmt. competition on solution to the better suspension system for sedans. few other types have also been discussed.
MODELLING SIMULATION AND CONTROL OF AN ACTIVE SUSPENSION SYSTEM IAEME Publication
Conventional passive suspension systems lag in providing the optimum level of performance. Passive suspensions are a trade-off between the conflicting demands of comfort and control. An active suspension system provides both comfort and control along with active roll and pitch control during cornering and braking. Thus it gives a ride that is level and bump free over an incredibly rough terrain. This paper is a review the active suspension system and the modelling, simulation and control of an active suspension system in MATLAB/Simulink. The performance of the system is
determined by computer simulation in MATLAB/Simulink. The performance of the system can be controlled and improved by proper tuning a proportional-integral-derivative (PID) controller.
automatic braking system and brake actuation before collisonashutosh singh
In this project the pneumatic bumper and brake is used to protect the man and vehicle. This system is only activated when any obstacle comes in front of vehicle, the obstacle is sensed by sensor and it gives the signal to the control unit and due to this bumper system and braking system activated. Bumper is energized by compressor and it compressed the air and send it to the pneumatic piston. This system is used in any type of light vehicles.
crash testing of cars,types of crash testing, how crash testing is done, dummies and its uses in crash testing crash absorption mechanism,safety features in cars
The report was done to develop a MATLAB model of a suspension system of a 4 wheel vehicle going over an uneven road. A simulink model was developed to simulate the various forces acting on the suspension of the vehicle.
PNEUMATIC VEHICLE ACTIVE SUSPENSION SYSTEM USING PID CONTROLLERTushar Tambe
The slide contains the simulation of pneumatic active suspension behavior on different road surface. These results shows the active suspension with controllers works effectively,if feedback loop is provided.
Analysis of Brake Biasing (Balance Bar) on BAJA (ATV) vehicleAditya Deshpande
In this report, I have done analysis of braking system for All Terrain Vehicle for BAJA competition. The report comprises thoroughly about brake biasing methods, and their uses. Here Balance bar method is discussed and analysed with mathematical formulas and subsequent conclusions are drawn.
The system was developed for VIT's Team Endurance Racing in year 2016 and successfully implemented.
I hope you find this report useful.
Do let me know your thoughts. Hit like and share this.
Aditya Deshpande
Analysis of Brake Biasing (Balance Bar) on BAJA (ATV) vehicleAditya Deshpande
In this report, I have done analysis of braking system for All Terrain Vehicle for BAJA competition. The report comprises thoroughly about brake biasing methods, and their uses. Here Balance bar method is discussed and analysed with mathematical formulas and subsequent conclusions are drawn.
The system was developed for VIT's Team Endurance Racing in year 2016 and successfully implemented.
I hope you find this report useful.
Do let me know your thoughts. Hit like and share this.
Aditya Deshpande
Semi-Active Vibration Control of a Quarter Car Model Using MR Damperishan kossambe
This presentation analytically evaluates the dynamic response of a quarter car using semi active control system. Semi active control system are becoming popular because they provide with good reliability like passive system and consume less power to give better performance than the active system. Magnetorheological (MR) fluid can produce good controllable damping force under the application of magnetic field and hence can be used as effective element in semiactive vibration control.
Out of the various semi active control strategies, the Bouc-Wen model control strategy is used in this work. Response of the quarter car is measured using MR damper and compared with normal passive damper.
This presentation from MathWorks Automotive Conference 2012 shows how to use Simulink in workgroups.
Simulink Project helps teams to collaborate engineering their designs.
It organizes the multitude of artifacts belonging to a modeling project, like model files, scripts, data files and documentation.
PID Controller Design for a Real Time Ball and Beam System – A Double Integra...idescitation
In this paper, the authors have discussed and shown
how to tune the PID controller in closed loop with time-delay
for the double integrator systems for a particular stability
margins. In math model it is assumed that time delay (ô) of
the plant is known. As a case study the authors have consid-
ered the mathematical model of the real-time beam and ball
system and analyzed the simulation and real time response.
Active vibration control of smart piezo cantilever beam using pid controllereSAT Journals
Abstract In this paper the modelling and Design of a Beam on which two Piezoelectric Ceramic Lead Zirconate Titanate ( PZT) patches are bonded on the top and bottom surface as Sensor/Actuator collocated pair is presented. The work considers the Active Vibration Control (AVC) using Proportional Integral Derivative (PID) Controller. The beam is assumed as Euler-Bernoulli beam. The two PZT patches are also treated as Euler-Bernoulli beam elements. The contribution of mass and stiffness of two PZT patches in the design of entire structure are also considered. The beam is modelled using three Finite Elements. The patches can be bonded near the fixed end, at middle or near the free end of the beam as collocated pair. The design uses first two dominant vibratory modes. The effect of PZT sensor/actuator pair is investigated at different locations of beam in vibration control. It can be concluded from the work that best result is obtained when the PZT patches are bonded near the fixed end. Keywords: Smart Beam, Active Vibration control, Piezoelectric, PID Controller, Finite Element
MODELLING AND SIMULATION OF INVERTED PENDULUM USING INTERNAL MODEL CONTROLJournal For Research
The internal model control (IMC) philosophy relies on the internal model principle, which states that control can be achieved only if the control system encapsulates, either implicitly or explicitly, some representation of the process to be controlled. In particular, if the control scheme is developed based on an exact model of the process, then perfect control is theoretically possible. Transfer function of Inverted Pendulum is selected as the base of design, which examines IMC controller. Matlab/simulink is used to simulate the procedures and validate the performance. The results shows robustness of the IMC and got graded responses when compared with PID. Furthermore, a comparison between the PID and IMC was shows that IMC gives better response specifications.
Optimization of automobile active suspension system using minimal orderIJECEIAES
This paper presents an analysis and design of linear quadratic regulator for reduced order full car suspension model incorporating the dynamics of the actuator to improve system performance, aims at benefiting: Ride comfort, long life of vehicle, and stability of vehicle. Vehicle’s road holding or handling and braking for good active safety and driving pleasure and keeping vehicle occupants comfortable and reasonably well isolated from road noise, bumps, and vibrations are become a key research area conducted by many researchers around the globe. Different researchers were tested effectiveness of different controllers for different vehicle model without considering the actuator dynamics. In this paper full vehicle model was reduced to a minimal order using minimal realization technique. The entire system responses were simulated in MATLAB/Simulink environment. The effectiveness of linear quadratic regulator controller was compared for the system model with and without actuator dynamics for different road profiles. The simulation results were indicated that percentage reduction in the peak value of vertical and horizontal velocity for the linear quadratic regulator with actuator dynamics relative to linear quadratic regulator without actuator dynamics was 28.57%. Overall simulation results were demonstrated that proposed control scheme has able to improve the effectiveness of the car model for both ride comfort and stability.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Mathematical Modeling and Simulation of Two Degree of Freedom Quarter Car Modelijsrd.com
The proposed study is to develop an active suspension system to increase the comfort for the passenger by reducing the body acceleration. The dynamic quarter car suspension system is considered for mathematical modelling and simulation is carried using MATLAB SIMULINK. The present suspension system is controlled by Proportional- Integral -Derivative controller. The system performance is analysed using the single speed bump road surface and the effectiveness is evaluated with active and passive controlled systems.
Linear Control Technique for Anti-Lock Braking SystemIJERA Editor
Antilock braking systems are used in modern cars to prevent the wheels from locking after brakes are applied. The dynamics of the controller needed for antilock braking system depends on various factors. The vehicle model often is in nonlinear form. Controller needs to provide a controlled torque necessary to maintain optimum value of the wheel slip ratio. The slip ratio is represented in terms of vehicle speed and wheel rotation.
In present work first of all system dynamic equations are explained and a slip ratio is expressed in terms of system variables namely vehicle linear velocity and angular velocity of the wheel. By applying a bias braking force system, response is obtained using Simulink models. Using the linear control strategies like PI-type the effectiveness of maintaining desired slip ratio is tested. It is always observed that a steady state error of 10% occurring in all the control system models.
Similar to controlling the vibration of automobile suspension system using pid controller (20)
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
2. 11/29/2015 Dept. of EEE, CIN , ASE AMRITAPURI 2
• This paper proposes the study of automobile active suspension system
for the purpose of improving riding comfort to passengers.
• Simultaneously improving the stability of vehicle by reducing vibration
effects on suspension system.
• The modeling and simulation is carried out in Simulink environment and
the PID (Proportional Integral derivative)
• The active control of the suspension system is being carried out by
proper tuning of the controller.
• The dynamic performance of the integrated system is improved
significantly by using the controller.
ABSTRACT
4. DYNAMICS OF THE SYSTEM
11/29/2015 Dept. of EEE, CIN , ASE AMRITAPURI 4
M1 = 1/4 bus body mass
M2 =suspension mass
K 1 =spring constant of suspension system
K2 = spring constant of wheel and tire
B1 =damping constant of suspension system
B2 =damping constant of wheel and tire
U =control force
W =disturbance in road
6. RESPONSE OF THE SYSTEM
11/29/2015 Dept. of EEE, CIN , ASE AMRITAPURI 6
Fig 1. Without PID controller Fig 2. With PID controller
7. PRACTICAL APPLICATION
• Can be used in almost all vehicles.
• Increase riding comfort.
• Provide better stability of the vehicle.
• Maintenance cost decreases.
11/29/2015 Dept. of EEE, CIN , ASE AMRITAPURI 7
8. References
• International Journal of Emerging Technology and Advanced Engineering
Website: www.ijetae.com IJETAE (ISSN 2250-2459, ISO 9001:2008
Certified Journal, Volume 5, Issue 2, February 2015) .
• A. Karthikraja, G. Petchinathan, S. Ramesh, Stochastic Algorithm for PID
Tuning of Bus Suspension System, IEEE Proc. INCACEC 2009.
• Abdolvahab Agharkakli, Chavan U. S. Dr. Phvithran S,―Simulation And
Analysis Of Passive And Active Suspension System Using Quarter Car
Model For Non Uniform Road Profile‖ Research and Applications (IJERA)
ISSNVol. 2, Issue 5, September- October 2012 .
• Mouleeswaran Senthil kumar, Member, IAENG, “Development of Active
Suspension System for Automobiles using PID Controller” World
Congress on Engineering London, U.K Vol II WCE 2008,July 2008.
11/29/2015 Dept. of EEE, CIN , ASE AMRITAPURI 8
