**What is a Fan Curve?**

It is a characteristics curve, which shows the relationship between static pressure and the air flow rate of the fan. The fan manufacturers perform actual test to find out the static pressure value of the … Read the rest

### Open Loop vs Closed Loop Hydraulic System

In general, when the hydraulic fluids flow continuously between the pump and the actuator (normally motor) without going to the reservoir, then the system is called as closed loop hydraulic system.

On the other hand, if the fluid from the … Read the rest

### The Bending Moment Diagram Curve – Should it be Convex or Concave?

- I am assuming that you already know how to create a beam bending moment diagram and you have already calculated all the bending moment values at suitable locations of the beam.

- You have to understand the following basic equation carefully,

### How to Apply the Euler Bernoulli Beam Theory for Beam Deflection Calculation

The Euler Bernoulli beam equation theory is the simple but practical tool for validating the beam deflection calculation. This beam theory is applied only for the laterally loaded beam without taking the shear deformation into account.

**What is Euler Bernoulli **… Read the rest

### How to Use the Rankine and Euler Formulas for Metric Steel Columns

Both the Rankine as well as the Euler formula are used for buckling calculation, however, the accuracy of the buckling calculation results depends upon the proper application of the Rankine and Euler formulas for metric steel columns or strut.

**What **… Read the rest

### How to do the Stainless Steel Selection for your Application

Due to the tremendous advancement of the material science, there are many verities of stainless steel available in market. And you as a design engineer may be getting confused as which one to use

**What is Stainless Steel?**

- Stainless steel

### Create Bending Moment Diagrams in Four Simple Steps

This article will clear your concepts of bending moment diagrams (BMD). You will know the important five steps required for how to calculate and draw bending moment diagram.

For the ease of understanding we will discuss the same example what … Read the rest

### Shear Force Diagram: Draw It in Eight Simple Steps

Shear force diagram is the most important first step toward design calculations of structural or machine elements. This article will discuss the steps for drawing shear force diagram.

A design engineer today is much more equipped than she was ever … Read the rest

### How Cooling Tower Works

Selection of cooling tower (CT) depends upon the application and surrounding conditions. It is the cost effective heat removal solution used for removing large heat load.

**How Cooling Tower Works**

It cools water based on diffusion principle.

When water particles … Read the rest

### Involute gear vs. Cycloidal gear

**What is involute gear?
**All the gear teeth have top flat portion and two side curves. The side curves for the involute gears are in the form of involute curve of a circle.

Involute curve of a circle can be … Read the rest