Question 2. Given the following feedback system, a. Find the forward transfer function b. What system type is this? c. What is the steady-state error for an input r(t) = 4 tu(t) R(S) Σ 0.5 s2+ 3s 1 S 3 s+1 Σ C(s)

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### Control Systems: Feedback System Analysis

#### Question 2: 
Given the following feedback system,

**a. Find the forward transfer function**

**b. What system type is this?**

**c. What is the steady-state error for an input \( r(t) = 4t \cdot u(t) \) ?**

#### System Diagram

Below is the block diagram of the feedback system:

```
           --------------          
           |   0.5/(s^2 + 3s)   |          
           --------------          
                |             
                V              
           --------------          
           |       1/s       |          
           --------------          
                |              
                V              
           ---------     
           |     +     | -----> C(s)
           |    ∑      |          
        ---|-----------|          
       |   \     -     |          
       |    ---------     
       |       |
       |       V
       |  --------------
       |  |    3/(s+1)   |
       |  --------------
       |        |
       |________|
```

1. The input \( R(s) \) goes into a summing junction.
2. The output of the summing junction passes through a block with transfer function \( \frac{0.5}{s^2 + 3s} \).
3. This output then splits into two paths:
    - One path goes through a block with a transfer function \( \frac{1}{s} \).
    - The other path goes through a block with a transfer function \( \frac{3}{s+1} \).
4. The outputs of these two blocks are summed again with one of them being negative and the other positive, resulting in the output \( C(s) \).

#### Explanation:

To solve this problem, let's break it down into the required parts:

**a. Find the forward transfer function**

**b. Determine the system type**

**c. Calculate the steady-state error for an input \( r(t) = 4t \cdot u(t) \) **

Each step will require applying control system principles, such as using the Laplace Transform and understanding system types and error constants.

#### Detailed Block Diagram Explanation

1. **Summing Junction:** Adds and subtracts the incoming signals.
2. **Transfer Functions:** Defined by blocks representing ratios of output to input in the Laplace domain.
3. **
Transcribed Image Text:### Control Systems: Feedback System Analysis #### Question 2: Given the following feedback system, **a. Find the forward transfer function** **b. What system type is this?** **c. What is the steady-state error for an input \( r(t) = 4t \cdot u(t) \) ?** #### System Diagram Below is the block diagram of the feedback system: ``` -------------- | 0.5/(s^2 + 3s) | -------------- | V -------------- | 1/s | -------------- | V --------- | + | -----> C(s) | ∑ | ---|-----------| | \ - | | --------- | | | V | -------------- | | 3/(s+1) | | -------------- | | |________| ``` 1. The input \( R(s) \) goes into a summing junction. 2. The output of the summing junction passes through a block with transfer function \( \frac{0.5}{s^2 + 3s} \). 3. This output then splits into two paths: - One path goes through a block with a transfer function \( \frac{1}{s} \). - The other path goes through a block with a transfer function \( \frac{3}{s+1} \). 4. The outputs of these two blocks are summed again with one of them being negative and the other positive, resulting in the output \( C(s) \). #### Explanation: To solve this problem, let's break it down into the required parts: **a. Find the forward transfer function** **b. Determine the system type** **c. Calculate the steady-state error for an input \( r(t) = 4t \cdot u(t) \) ** Each step will require applying control system principles, such as using the Laplace Transform and understanding system types and error constants. #### Detailed Block Diagram Explanation 1. **Summing Junction:** Adds and subtracts the incoming signals. 2. **Transfer Functions:** Defined by blocks representing ratios of output to input in the Laplace domain. 3. **
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