Q.4) The rod is supported by journal bearings at A, B and C and subjected to a force of 500 N (in y-z plane) and a couple moment of 400 N-m as shown below. The bearings are in proper alignment and exert only force reactions on the rod. Derive the static equilibrium equations for the rod shown and find the force reactions at the bearings.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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**Title: Static Equilibrium Analysis of a Rod Supported by Bearings**

**Problem Statement:**
The rod is supported by journal bearings at points A, B, and C and is subjected to a force of 500 N (in the y-z plane) and a couple moment of 400 N·m as shown below. The bearings are in proper alignment and exert only force reactions on the rod. Derive the static equilibrium equations for the rod and find the force reactions at the bearings.

**Diagram Description:**
A three-dimensional diagram is provided to illustrate the rod and the applied forces. The rod is fixed at three points: A, B, and C, each supported by a journal bearing. The rod has the following configuration:
- Point A is located at the origin.
- Point B is 0.4 meters from point A along the x-axis.
- Point C is 0.3 meters from point B along the y-axis and 0.2 meters along the z-axis, forming an angled segment.

The rod experiences:
- A force of 500 N applied at an angle of 42 degrees in the y-z plane.
- A couple moment of 400 N·m applied around the axis at point B.

**Steps for Static Equilibrium Analysis:**

1. **Identify Forces and Moments:**
   - Force: \( \mathbf{F_1} = 500 \, \text{N} \)
   - Moment: \( \mathbf{M} = 400 \, \text{N·m} \)

2. **Set up Coordinates:**
   - Position vectors:
     \( \mathbf{r_A} = 0 \)
     \( \mathbf{r_B} = (0.4, 0, 0) \)
     \( \mathbf{r_C} = (0.4, 0.3, 0.2) \)

3. **Apply Static Equilibrium Equations:**
   - Sum of Forces in each direction must be zero:
     \( \sum \mathbf{F}_x = 0 \)
     \( \sum \mathbf{F}_y = 0 \)
     \( \sum \mathbf{F}_z = 0 \)

   - Sum of Moments in each direction must be zero:
     \( \sum \mathbf{M}_x = 0 \)
     \( \sum \mathbf{M}_y = 0 \)
     \(
Transcribed Image Text:**Title: Static Equilibrium Analysis of a Rod Supported by Bearings** **Problem Statement:** The rod is supported by journal bearings at points A, B, and C and is subjected to a force of 500 N (in the y-z plane) and a couple moment of 400 N·m as shown below. The bearings are in proper alignment and exert only force reactions on the rod. Derive the static equilibrium equations for the rod and find the force reactions at the bearings. **Diagram Description:** A three-dimensional diagram is provided to illustrate the rod and the applied forces. The rod is fixed at three points: A, B, and C, each supported by a journal bearing. The rod has the following configuration: - Point A is located at the origin. - Point B is 0.4 meters from point A along the x-axis. - Point C is 0.3 meters from point B along the y-axis and 0.2 meters along the z-axis, forming an angled segment. The rod experiences: - A force of 500 N applied at an angle of 42 degrees in the y-z plane. - A couple moment of 400 N·m applied around the axis at point B. **Steps for Static Equilibrium Analysis:** 1. **Identify Forces and Moments:** - Force: \( \mathbf{F_1} = 500 \, \text{N} \) - Moment: \( \mathbf{M} = 400 \, \text{N·m} \) 2. **Set up Coordinates:** - Position vectors: \( \mathbf{r_A} = 0 \) \( \mathbf{r_B} = (0.4, 0, 0) \) \( \mathbf{r_C} = (0.4, 0.3, 0.2) \) 3. **Apply Static Equilibrium Equations:** - Sum of Forces in each direction must be zero: \( \sum \mathbf{F}_x = 0 \) \( \sum \mathbf{F}_y = 0 \) \( \sum \mathbf{F}_z = 0 \) - Sum of Moments in each direction must be zero: \( \sum \mathbf{M}_x = 0 \) \( \sum \mathbf{M}_y = 0 \) \(
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