Skip to main content

Automobile: Definition & Components

An automobile (also called automotive) is a self-propelled vehicle which is used for, the transportation of passengers and goods on the ground. A self-propelled vehicle is that in which power is produced within itself for its propulsion. The various types of self-propelled vehicles are scooters, motor cycles, cars, buses, trucks, tractors, locomotives, motor boats, ships, aeroplanes, helicopters, rockets, etc. Since an automobile is propelled on the ground only, therefore, it differs from other self-propelled vehicles like aeroplane, ship, locomotive, motor boat etc.

An automobile is a combination of a large number of parts. It can be divided into two major constituents i.e. body and the chassis. The body is that part where passengers have their seats or the luggage and cargo to be carried is placed. The chassis is the main machine portion which have constituents like frame, wheels, axles, engine, steering, fuel tank, radiator etc.

In general, an automobile, is made up of the following components:

(a) Basic structure or frame work

(b) Engine or source of power

(c) Transmission system

(d) Body or super structure

(e) Auxiliaries

(f) Controls.

The basic body structure of automobiles is of two types:

(a) Body and frame type and

(b) Unit type (frameless structure also known as monocoque body).

In the body and frame type design, the body is bolted to a separate frame. Most of the suspension, bumper and brake loads are transmitted to the frame. In the unit type design, the sheet metal parts are welded together, forming a framework to which an outer skin is attached. In other words, the chassis is integral with the body. This type of design enables reduction in body weight, and consequently improves the fuel consumption and makes driving easy. It also increases the safety levels because of better impact absorption.


Popular posts from this blog

Are Engineers Favourite Among Girls?

What do girls think about men who are engineers and what type of engineers are most favourite among girls? A survey was conducted by a team of aboutmech with members chosen from different countries. Each team member carried out a neutral survey in his/ her country to evaluate what females think about most of the engineers from different engineering branches. An overview of different questions asked in survey is given below: Question: Which male engineers do you find more attractive as a husband? Almost 50% women voted for mechanical engineers to be the most attractive husbands among other engineers. So mechanical engineers are most favourite among girls as a husband. They find them more trustworthy, intelligent, and creative. A married women from California said, “If your husband is a mechanical engineer, he will help you in everyday tasks. Because mechanical engineers are good team players and they have creative ideas about everything.” Which male engineers do you find mo

Best CV Format for Mechanical Engineers

Fifty percent engineers fail to grab a dream job because of basic faults in their CVs/ Resume. This article tells you about best CV format for mechanical engineers and how you are supposed to design your CV when applying for jobs. You CV is your first impression on future employer. He/ she does not know you. Your CV is the only representation of your personality. He/ she may select or reject you after first glance on your resume.  I have experienced shortlisting and interviewing candidates for different jobs. I was astonished to learn that most of the candidates simply copy paste each others CVs without any changes at all. These types of CVs are rejected immediately. I am not trying to tell you that you should avoid copying, rather i ma telling you to refrain from giving your CV to your friends. An ideal CV consists of following portions: Name/ Address of the applicant Objective Education Record Employment History Professional Skills Awards & Achievements Co

Engineering Mechanics - Introduction

The Engineering Mechanics is that branch of Engineering-science which deals with the principles of mechanics along with their applications to engineering problems. It is sub-divided into the following two main groups: (a) Statics, and (b) Dynamics The Statics is that branch of Engineering Mechanics which deals with the forces and their effects, while acting upon the bodies at rest. The Dynamics is that branch of Engineering Mechanics which deals with the forces and their effects, while acting upon the bodies in motion. It is further sub-divided into the following two branches: (i) Kinetics, and (ii) Kinematics The Kinetics is that branch of Dynamics, which deals with the bodies in motion due to the application of forces. The Kinematics is that branch of Dynamics which deals with the bodies in motion without taking into account the forces which are responsible for the motion.