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Expert help when you need it- Q1:7. For each state of an n-channel enhancement-mode MOSFET that follows, determine what operating region the MOSFET is in if the threshold voltage Vt is 3 V. Please indicate ON or OFF a. Vgs = 2 V, Vds = 5 V b. Vgs = 4 V, Vds = 5 V c. Vgs = 6 V, Vds=5 V d. Vgs = -2.5 VSee Answer
- Q2:Page 1: 1 Imm Page 2: 2 ww Page 3: 3 Page 4: 4 -- Page 5: 5 Previous Page Question 5 (45 points) Imagine that you design a suspension for a car described below. There are four suspensions in the car and total stiffness and damping coefficients are defined as k and c. The car's body mass is defined as m. Assume that the input from the ground is r(t) = sinot. Next Page Paragraph 13 B A @ s+0² (a) [30 pts] The displacement of the car in s-domain is defined as X(s) = G(s) the magnitude of the frequency response (G(jw). Draw it in the frequency domain with various . Please show all the procedures including the equation of motion, free body diagram, transfer function, and magnitude. (Show all the procedures) te I (b) [15 pts] Our goal is to minimize the effect of ground vibration after the resonance peak by designing the suspension (k. c) or the car's body mass (m). Please explain how to design each parameter (k, c, m) to reduce the magnitude after the resonance peak. (Show all the procedures) k UVA Page 5 of 5 E EV o +9 Find 54See Answer
- Q3:For the first time in the history of this module, we are introducing a Technical Paper Review coursework component. The core theme for this paper review exercise is centred on using different types of electrical machines in electric vehicle applications. You have been randomly assigned a Technical Paper to read and then review. The review process requires you to reflect on (1) the CORE SCOPE of the paper, (2) TECHNICAL CHALLENGES AND OPPORTUNITIES, (3) POTENTIAL FUTURE CONTRIBUTION AND TAKE- HOME KNOWLEDGE, and (4) PRODUCE A FUNCTIONAL BLOCK DIAGRAM. The block diagram requires some level of creativity to capture the entire discussion of the paper graphically. Note: A deep understanding of the methods used in the paper is not necessary; the aim is to provide a high-level review and summary of the work.See Answer
- Q4:(1) In this problem, you will implement Kalman filters to estimate the core-temperature of cylindrical batteries under unknown cooling conditions. As show in Fig. 1, three estimation approaches (an open-loop observer, a Kalman filter, and a dual Kalman filter) are included in DEKF_h_est_sin 2020.51x. Unzip the provided file Estimation_HW7.zip. The thermal dynamics of the considered cylindrical cell are based on the two-state thermal model as given by: dr -Az + Bu, y-Cx+Du where x = 5, u — [ġ T…]³ and y = (T. T.] are states, inputs and outputs respectively. System matrices A, B, C, and D are defined as follows: -48ah R(24k+ Rh) -150h 24k+Rh A- -320ah -120a(4k+Rh) R²(24k+ Rh) 48ah R²(24k+ Rh) a B- kVR(24k+Rh) 320ah 0 C- 24k+Rh R²(24k+ Rh) 24k-3Rh 120Rk,+15R²h 8(24k+ Rh) 24k 24k+Rh 15Rk 48k +2Rh 4Rh 0 D- 24k+ Rh Rh 0 24ks + Rh Since Kalman filters are to be implemented in the discrete-time domain, the dynamics are discretized via the forward Euler approxiamtion, resulting in the following system: 2+1 - Ash + Belt -Cz + Du where A-I+AAt and B₁ - BAt with a sampling time At. Using the Kalman filter algorithm provided in lecture slides, fill the blanks in the two Matlab function blocks: Thermal DEKF and Thermal KF. The file HW5 DEKF_init.m initializes the simulation including the thermal parameters of the considered battery, the initial values of state and parameter estimates, and loading measurement data. Submit a figure with three subplots showing the convection coefficient, core and surface temperature trajectories (vs. time) obtained from the submodules and actual data.See Answer
- Q5:Question 5 (45 points) Imagine that you design a suspension for a car described below. There are four suspensions in the car and total stiffness and damping coefficients are defined ask and c. The car's body mass is defined as m. Assume that the input from the ground is r(t)=sina. k e (a) [30 pts] The displacement of the car in s-domain is defined as X(s)-G(s) Find the magnitude of the frequency response |G(ja). Draw it in the frequency domain with various . Please show all the procedures including the equation of motion, free body diagram, transfer function, and magnitude. (Show all the procedures) (b) [15 pts] Our goal is to minimize the effect of ground vibration after the resonance peak by designing the suspension (k, c) or the car's body mass (m). Please explain how to design each parameter (k, c, m) to reduce the magnitude after the resonance peak. (Show all the procedures)See Answer
- Q6: UAEU Department of Mechanical and Aerospace Engineering جامعة الإمارات العربية المتحدة United Arab Emirates University MECH 350 Introduction to Mechatronics Term Project Estimation of static and dynamic parameters of a swinging pendulum using an Arduino based measurement system Introduction The mass moments of inertia of a rigid body with respect to a given axis of rotation is a measure of the geometrical distribution of the mass of a rigid body relative to that axis. It quantifies the resistance of the rigid body to rotate about the respective axis due to its mass and geometry. Dynamic modeling and control of the motion of a rigid body that experience rotational motion requires knowledge of its mass moments of inertia. Therefore, determining the mass moment of inertia of a rigid body is of a great importance. One of the methods to experimentally estimate the mass moments of inertial of a given object is to allow it to swing about a given axis of rotation. From recording the oscillatory motion, the mass moments of inertia could be estimated together with other dynamic parameters including the damping parameter. B IG G J 3 Figure 1: A rigid body with irregular shape having oscillatory motion In this project you will build an oscillating pendulum with a given shape and you will use it to estimate the static and dynamic parameters of that shape. Arduino UNO will be used to log the motion data which will be picked up in the form of an analog signal using a tachometer sensor (a small dc motor). The signal that the tachometer generates is analog and is proportional to the rotational speed. Since the pendulum has clock-wise (CW) and counter-clock-wise (CCW) rotational motion, the measured signal by the tachometer will have positive and negative polarity. In order to interface the sensor with the Arduino, the analog signal coming from the sensor has to be scaled and shifted to fit within the available range of the analog to digital converter (ADC) of the Arduino (which is 0 to 5 volts). Required Tasks: To complete project each group need to perform the following tasks: 1) Using Newton-Euler formulation, find a mathematical model for the system in the form of a linear second order differential equation. 2) Solve the differential equation analytically to find (t), and differentiate (t) to find the angular velocity w(t). Assume that the pendulum is released from rest with a given initial angle 0. 3) Experimentally estimate the distance lg between the center of mass G and the center of rotation O (see Figure 1). 4) Design and build an Op Amp-based interfacing circuit to scale the analog signal and add to it an offset of 2.5 volts. 5) Use the Simulink support package for Arduino to log the data to a computer using Arduino UNO. 6) Experimentally measure the response when releasing the pendulum from rest with a given initial angle 0. 7) Use the collected data to estimate the dynamic parameters of the system. 8) Use the estimated parameters to simulate the system parameters. 9) Plot the simulated response and the actual response that is measured experimentally. 10) Write a report to summarize the work you did, and to compare the results and comment on the findings. Tasks 1-2 will have 20% of the project grade and the due date will be announced by the instructor. Tasks 3-4 will have 20% of the project grade and the due date will be announced by the instructor. Tasks 5-10 will have 60% of the project grade and the due date will be announced by the instructor. The best work will be awarded extra 5 points from the total project grade.See Answer
- Q7: Introduction The mass moments of inertia of a rigid body with respect to a given axis of rotation is a measure of the geometrical distribution of the mass of a rigid body relative to that axis. It quantifies the resistance of the rigid body to rotate about the respective axis due to its mass and geometry. Dynamic modeling and control of the motion of a rigid body that experience rotational motion requires knowledge of its mass moments of inertia. Therefore, determining the mass moment of inertia of a rigid body is of a great importance. One of the methods to experimentally estimate the mass moments of inertial of a given object is to allow it to swing about a given axis of rotation. From recording the oscillatory motion, the mass moments of inertia could be estimated together with other dynamic parameters including the damping parameter. OOB lG G m Figure 1: A rigid body with irregular shape having oscillatory motion In this project you will build an oscillating pendulum with a given shape and you will use it to estimate the static and dynamic parameters of that shape. Arduino UNO will be used to log the motion data which will be picked up in the form of an analog signal using a tachometer sensor (a small dc motor). The signal that the tachometer generates is analog and is proportional to the rotational speed. Since the pendulum has clock-wise (CW) and counter-clock-wise (CCW) rotational motion, the measured signal by the tachometer will have positive and negative polarity. In order to interface the sensor with the Arduino, the analog signal coming from the sensor has to be scaled and shifted to fit within the available range of the analog to digital converter (ADC) of the Arduino (which is 0 to 5 volts). Required Tasks: To complete project each group need to perform the following tasks: 1) Using Newton-Euler formulation, find a mathematical model for the system in the form of a linear second order differential equation. 2) Solve the differential equation analytically to find (t), and differentiate (t) to find the angular velocity w(t). Assume that the pendulum is released from rest with a given initial angle 0. 3) Experimentally estimate the distance lg between the center of mass G and the center of rotation O (see Figure 1). 4) Design and build an Op Amp-based interfacing circuit to scale the analog signal and add to it an offset of 2.5 volts. 5) Use the Simulink support package for Arduino to log the data to a computer using Arduino UNO. 6) Experimentally measure the response when releasing the pendulum from rest with a given initial angle 0. 7) Use the collected data to estimate the dynamic parameters of the system. 8) Use the estimated parameters to simulate the system parameters. 9) Plot the simulated response and the actual response that is measured experimentally. 10) Write a report to summarize the work you did, and to compare the results and comment on the findings.See Answer
- Q8:3) (16 marks) A state space representation of G(s) = = 1- is given by i = -1 0 0 + y = [1 0]x Obtain expressions for the states and output and comment on the stability of the system. Is the above state space realization suitable for simulating a system with transfer function G(s)?See Answer
- Q9:1. In the following circuit, what minimum steady state voltage Vin is required to turn the LED on and keep the transistor fully saturated? Assume that the forward bias voltage for the LED is 2 V and there is a 0.2 V collector-to-emitter voltage drop when the transistor is saturated.See Answer
- Q10:3. In the following circuit, find the minimum Vin required and the resulting voltage Vout to put the transistor in full saturation. Assume that the ß for the transistor is 100 in full saturation.See Answer
- Q11:6. For each of the following circuits from Figures 10.51 and 10.53 state whether the transistor is off or on. Calculate the minimum current that will flow through the load resistor using the specifications give below.See Answer
- Q12:7. For each state of an n-channel enhancement-mode MOSFET that follows, determine what operating region the MOSFET is in if the threshold voltage Vt is 3 V. Please indicate ON or OFF a. Vgs = 2 V, Vds = 5 V b. Vgs = 4 V, Vds = 5 V c. Vgs = 6 V, Vds=5 V d. Vgs = -2.5 VSee Answer
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