Brake system of an automobile, as you already know how it works, stops the wheel from rotating further.

But in conventional hydraulic braking system, at all the wheels equal amount of hydraulic brake fluid pressure … Read the rest

### How to calculate vehicle speed from engine RPM and vice versa

Suppose your motor vehicles speedometer not working and you need to know your vehicle speed for the given engine speed for a certain gear ratio. How you can do that , let’s see..

Say, Engine rpm= 3000

Gear ratio=1.5

Axle … Read the rest

### The Challenges of New Eco-Friendly Tech – Are Electric Cars Really That Green?

Increasing the focus on renewable energy sources is gaining more and more traction around the globe, and as consumers and the public gain a better understanding of how things like wind turbines work, as they continue to pop up … Read the rest

### Bolted Joint Design Calculation Example for Joint in Tension

Properly designed bolted joint is extremely important for striking the balance between the cost and life of the joint.

As a design engineer, for a good bolted joint design, for a given loading conditions and materials of the abutments, you … Read the rest

### Worst Case Method Assembly Tolerance Stack up Calculation for Non-Symmetric Dimensional Tolerances with Example

If you are wondering what is stack-up analysis/calculation, the answer is determining worst case scenario. Moreover, the problem can sorted out in early stages of design rather than undergoing prototyping and finding out the issue.

We have already discussed how … Read the rest

### DFMEA Creation Tutorial with Example

What is **DFMEA**?

DFMEA is **D**esign **F**ailure **M**ode & **E**ffect **A**nalysis. It is the application of FMEA to a specific product/system in a disciplined manner that anticipates failures to prevent their occurrence in design.… Read the rest

### Assembly Tolerance Stack Up Calculation in 4 Steps with Example

Tolerance stack up analysis calculation is done to find out essentially the deviation of gap of the surfaces between two specified parts.

**How?**

Following steps shows how to do the tolerance stack up analysis for absolute tolerance system or worst … Read the rest

### Nominal and Metric Pipe Size Chart

Wall thickness of pipes available in different standard schedules (SCH.) for **NPS** (Nominal Pipe Size in “inch”) as well as **DN** (Diameter Nominal in “mm”) are shown in below chart.

The wall thickness unit shown in the table without bracket … Read the rest

### Hydraulic Cylinder Design Calculation with Example

We have already discussed how to design hydraulic cylinder piston.

In this sizing calculation tutorial we will see how to design hydraulic cylinder. Industrial hydraulic cylinder is an example of a typical thick cylinder.

**Thick cylinder vs. thin **… Read the rest

### How to Calculate Piston Size Required for Designing a Hydraulic Cylinder

**What is hydraulic cylinder?**

The hydraulic cylinder is a device that converts the energy of fluid into mechanical energy. The fluid is pumped into the cylinder by means of a pump and it can be used to move a load. … Read the rest