MP3395 - Mechanical Engineering Systems - Case Study - Engineering Assignment Help

Assignment Task

Learning outcomes
This assignment is structured that students show evidence for partial fulfilment of the following module learning outcomes:
1) Structured and informed design and development of engineering systems through the application of scientific principles and methodology to a variety of systems
2) Apply mathematical and engineering principles as either a part or the whole of the analysis and evaluation of the performance of a variety of engineering systems and processes quantifying the limitations of the modelling
3) Apply a systems approach to engineering problems to classify, analyse and evaluate the performance of systems and components through the use of modelling techniques

Tasks
Introduction
1. Describe the active suspension technology. This should cover a wide range such as a brief history, how it works, types and various technologies, sensors and elements, application, feasibility regarding performance and cost, etc.
2. Discuss different dynamic models of a suspension system from the point of view of degrees of freedom and mathematical modelling.

3. Discuss advantages, disadvantages, and challenges of proportional-integral-derivative (PID) control of active suspension systems and your viewpoint.

Dynamic Model
1. Describe all your assumptions and develop a simple dynamic model of the suspension system. For instance, the model is a quarter car model which includes five elements: the vehicle body mass (m?), the spring of the car (k?), the damper of the car (c), the unsprung mass of the tyre (m?), and the tyre stiffness which is modelled as a spring (kt). The other parameter is the control force from the active suspension system which is input to the system. y1, y2, and yr are the displacement of the body, unsprung mass, and road excitation (disturbance), respectively.
2. Develop the free-body-diagram of your dynamic model, discuss the number of degrees of freedom of the model and find the equation/s of motion.
3. Assume yr = 0 and find the transfer function when the output is the displacement of the body (y1) and input is the control force (fi).

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