How to use Keyboard Special Keys in Auto-CAD software: Keys Action ESC Use the ESC key to cancel all current actions and return to the Command: prompt. ENTER Press the ENTER key following all keyboard input. You also complete many commands by pressing ENTER. SPACEBAR Pressing the SPACEBAR is equivalent to pressing the ENTER key…
CAD: Computer-Aided Design (CAD) can be defined as the creation, modification, analysis and optimization of a new component using a computer. CAD involves 3 major elements:- 1. Hardware 2. CAD software and 3. The user The primary function of CAD involves design, analysis and application to manufacturing. An object drawn with CAD can be analyzed interactively on the CAD screen…
CVT is an “infinite speed” transmission which can change step-lessly through an infinite number of effective gear ratios between maximum and minimum values. Unlike traditional automatic transmissions, continuously variable transmissions don’t have a gearbox with a set number of gears, which means they don’t have interlocking toothed wheels. The word gear in CVT refers to a ratio of engine shaft…
A sequential transmission is a type of transmission used on motorcycles and high-performance cars for auto racing, where gears are selected in order, and direct access to specific gears is not possible. Cars with SMTs have a manual transmission with no clutch pedal; the clutch is automatically engaged. In a race car, the motion of the…
A dual clutch transmission, commonly abbreviated to DCT uses two clutches, but has no clutch pedal. Sophisticated electronics and hydraulics control the clutches, just as they do in a standard automatic transmission. In a DCT, however, the clutches operate independently. One clutch controls the odd gears (first, third, fifth and reverse), while the other controls…
A semi-automatic transmission (also known as clutch less manual transmission, automated manual transmission, flappy-paddle gearbox, or paddle shift gearbox) is a system which uses electronic sensors, processors and actuators to execute gearshifts on the command of the driver. This removes the need for a clutch pedal which the driver otherwise needs to depress before making…
Both the automatic transmission and a manual transmission accomplish exactly the same thing, but they do it in totally different way. Advantages of manual transmission over automatic transmission- 1. It is easier to build a strong manual transmission than an automatic one. This is because a manual system has one clutch to operate, whereas an automatic system…
1. Clutches & Bands – These are friction devices that drive or lock planetary gear sets members. They are used to cause the gear set to transfer power. In other words, they are used to hold a particular member of the planetary gear set motionless, while allowing another member to rotate, thereby transmitting torque and producing gear reductions…
The planetary gear set is the device that produces different gear ratios through the same set of gears. Any planetary gear set has three main components: · The sun gear · The planet gears and the planet gears’ carrier · The ring gear Each of these three components can be the input, the output or can be held…
An automatic transmission is a motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears. In this transmission system the gears are never physically moved and are always engaged to the same gears. Automatic transmissions contain mechanical systems, hydraulic systems, electrical systems and computer controls, all working together in perfect…