Idhaya – Engineering & Technology Blog, Industrial & Mechanical Engineering Information

Radiators and their supporting role in the internal combustion engine show a component that has been with us for quite some time, and how a basic design that was rooted in genius can still be just as effective today. In fact, any internal combustion engine generally requires a radiator in order to operate efficiently, including the most modern vehicles on the road today.

A radiator is just what it implies; a way to help an internal combustion engine radiate heat away from it and out into the surrounding atmosphere. It does this by circulating some sort of coolant through the engine, where it is then heated up and routed back to the radiator. Most automobiles, train engines and motorcycles and also some piston driven airplanes have radiators.

Once that coolant is heated up and then sent back to the radiator, air rushing through the radiator — either from the forward motion of the vehicle forcing air through it or by means of a fan placed in front of the radiator or a combination of both — cools the liquid coolant back down to levels where it will not boil over. It circulates this coolant by means of some sort of pump.

Generally, most automotive historians give credit for the creation of the radiator to the German engineer and all around genius Karl Benz. He was the first to patent a design for the radiator, beating out two other German designers (Wilhelm Maybach and Gottlieb Daimler), both of whom — working separately — came up with similar designs.

Karl Benz, however, happen to make it to the patent office first. Benz was a literal design genius when it came to improving the internal combustion engine. He is so associated with it, many historians generally refer to him as the inventor of the engine. Additionally, he is also closely associated with the automobile itself. His design for an internal combustion engine and radiator was first patented in 1879.

From then until around the 1970s, the basic idea behind radiator remained the same, as were the metals and materials used to construct it, which were basically copper and brass. This is quite some time for a design that was patented in the late 1800s to last, and it is a testament to his genius. In the 1990s, aluminum, though, began to make some inroads in terms of radiator construction.

Prior to the 1990s, during the 1970s and 1980s, auto manufacturers and engineers were seriously looking at ways to lighten motor vehicles. This was because heavier vehicles burned more fuel. The lighter a vehicle, then, the less fuel was used. This became very important after the first oil shocks of the early 1970s. However, most aftermarket radiators are still made of brass and copper cores.

These metals are extremely efficient at dissipating heat, and new improvements in their design and manufacture has delivered radiators that are lighter in weight and far more durable than aluminum units of the same size and dimensions. The radiator as a way to cool an internal combustion engine seems destined to remain with us for quite some time to come.

Software Engineering: A Layered Technology

S.E is a layered technology. Any engineering approach must rest on an organization commitment to quality i.e. if the quality is good then we can build increasingly more matured project.

                          

                           Tools

                           Methods

                           Process

                           A quality focus

The foundation for software engineering is the process layer. Process defines a framework for a set of key process areas (kpa’s) that must be established for effective delivery of s/w engineering technology. The kpa’s form the basis for management control of software projects and establish the context in which technical methods are applied, data, reports etc are produced, quality is ensured and change is properly managed.

Software engineering methods provide the technical how-to’s for building s/w i.e. they include requirements analysis, design, program construction, testing and support

Software engineering tools provide support for the process and the methods. When the tools are integrated, so that info created by one tool can be used by another, a system for the support for s/w development called CASE is established. CASE combines s/w, h/w and s/w engineering database.

 

A Generic view of software engineering:

The work associated with s/w engineering can be categorized into three generic phases regardless of application area, project size or complexity i.e. definition phase, development phase, and support phase.

·        The definition phase focuses on what. That is during definition phase ,the software engineer attempts to identify what info is to be processed, what function and performance are desired, what interfaces are to be established, what design constraints exists and what validation criteria are required to define a successful system. Thus the key requirements of system and the s/w are identified.

·        The development phase focuses on how. That is , during development a software engineer attempts to define how data are to be constructed, how function is to be implemented within a s/w architecture , how procedural details are to be implemented, how interfaces are to be characterized, how the design will be translated into programming language and how testing will be performed. The results of this phase are s/w design, code generation and s/w testing.

·        The support phase focuses on change associated with error correction, adaptations required and changes due to enhancements brought about by changing customer requirements i.e. this phase reapplies the steps of definition and development phases. Four types of changes are encountered i.e. correction, adaptation, enhancement and prevention.

o       Corrective maintenance changes the s/w to correct defects.

o       Adaptive maintenance results on modification to the s/w to accommodate changes to its external environment (i.e.C.P.U, O.S etc).

o       As software is used, the customer /user will recognize additional functions that will provide benefit i.e. future enhancements.

o       Preventive maintenance often called s/w engineering must be conducted to enable the s/w to serve the needs of its users I.e. it makes changes to computer programs so that they can be more easily corrects, adapted and enhanced.

 

Generic process framework activities:

   Communication, planning, modeling, construction and deployment.

There are also a no of umbrella activities:

·        Software project tracking and control

·        Risk management

·        Software quality assurance

·        Formal technical reviews

·        Measurement

·        Software configuration management

·        Reusability management

·        Work product preparation and production

 

   A Process Framework:

               A common process framework is established by defining a small no of activities that are applicable to all s/w projects regardless of their size or complexities.

               A no of tasks sets each a collection of s/w engineering work tasks, project milestones, work products; quality assurance points enable the framework activities to be adapted to the characteristics of the s/w project and the requirements of the project team.                

The Capability Maturity Model Integration (CMMI):

 

Now-a-days there has been a significant emphasis on ‘process maturity’. The s/w engineering institute (SEI) has developed a comprehensive model predicated on asset of software engineering capabilities that should be present as organizations reach different levels of process maturity. To determine an organization’s current state of process maturity the SEI uses an assessment that results in a five point grading scheme i.e. by using capability maturity model that defines key activities required at different levels of process maturity.

   There are six process maturity levels:

·        Level 0: Incomplete

·        Level 1: Initial, where few processes are defined and success depends on individual effect.

·        Level 2: Repeatable, basic project management processes are established to track cost; schedule and functionality I.e. process discipline is repeated on projects with similar applications because of their earlier successes.

·        Level 3: Defined, the s/w process for both management and engineering activities are documented, standardized and integrated into an organization wide s/w process

·        Level 4: Managed, both the s/w process and products are quantitatively understood and controlled using detailed measures.

·        Level 5: Optimizing, continuous process improvement is enabled by quantitative feedback from the process and from testing innovative ideas and technologies.

   The five levels defined by the SEI were derived as a consequence of evaluating responses to SEI assessment questionnaire that is based on the CMM. The results of questionnaire are distilled to a single numerical grade that provides an indication of an organization’s process maturity.

   The SEI has associated kpa’s with each of the maturity levels. Each kpa is described by identifying the following characteristics:

·        Goals: The overall objectives that the KPA must achieve.

·        Commitments: requirements that must be met to achieve the goals.

·        Abilities: those things that must be in place to enable the organizations to meet the commitments.

·        Activities: the specific tasks required to achieve the KPA function.

·        Methods for monitoring implementation: the manner in which the activities are monitored as they are put into place.

·        Methods for verifying implementation: the manner in which the proper practice for the KPA can be verified.

 

   Eighteen KPA’s have been defined across the maturity model and mapped into different levels of process maturity. The following KPA’s should be achieved at each process maturity level

   Process maturity level 2:

·        Software configuration management

·        Software quality assurance

·        Software subcontract management

·        Software project tracking and oversight

·        Software project planning

·        Requirements management

·        Process maturity level3:

·        Peer reviews

·        Intergroup coordination

·        Software product engineering

·        Integrated software management

·        Training program

·        Organization process definition

·        Organization process focus

·        Process maturity level4

·        Software quality management

·        Quantitative process management

·        Process maturity level5:

·        Process change management

·        Technology change management

·        Defect prevention

 

 

Anyone interested in working within the aerospace industry should understand the complex processes that go into developing commercial and military aircraft. Concepts are developed by design and engineering teams to combine new innovations with the perfect execution of past projects. From conceptual sketches and plans, production managers and personnel spend their time actually creating vehicles that will protect nations and carry commercial passengers. After manufacturing, aerospace companies meticulously test and maintain these vehicles in order to avoid future problems and learn for different models down the road. In all of these steps, the materials engineering position is key for the success of aerospace companies.

The average day of a materials engineer involves a wide variety of tasks to oversee all steps of aeronautical production process. Materials engineers often take part in concept and design sessions with other engineers and designers. Their role in these meetings is to discuss the viability of implementing particular design elements and using their experience to discuss the best possible processes and materials for production. As well, materials engineers visit production plants to make sure that machinery, human production, and everything else about the creation of aerospace products is working efficiently.

Materials engineers work about 40 hours per work week, which means that they must fit a significant amount of work into their eight-hour work day. As such, aerospace companies are looking for engineers that not only possess the knowledge of chemical and mechanical processes needed for production but an ability to organize their thoughts quickly. The materials engineering workspace is typically adjacent to production facilities, instead of design facilities, in order to facilitate an easy move from work space to the production line. Materials engineers are usually given individual computer and lab work stations in order to lay out plans, gather colleagues, and other activities requiring significant space.

Materials engineers need to have a first degree in material science or a combination of degrees including chemistry, chemical engineering, and structural engineering. Professionals with advanced degrees or apprenticeships with aerospace corporations are especially prized in materials engineering positions. These positions lend themselves to those who can pick up the nuances of a corporation’s work structure quickly, use their academic knowledge in practical situations, and a commitment to excellence in every endeavor. Materials engineers have a great deal of career opportunities, including advancement to materials management positions in aerospace companies. As well, materials engineers can select to work as general engineers or specializing in chemical, manufacturing, or structural engineering.

For the budding engineer in you, it is important that you study hard and enjoy the body of work that will be presented to you. These are the tools you will need when you take your first hand experience on the job. You have to be knowledgeable and skillful to get the licenses you need to work in the exciting new frontiers of mechanical engineering.

There a lot of disciplines, you can focus on when you study mechanical engineering. Of course, you have to know a vast number of disciplines too like in thermodynamics and kinematics. These, plus your knowledge base on the core studies of mechanical engineering will help you attain skills and knowledge to analyze products for their efficiency, their power, limitations and failures. You can take on in mechanical engineering so many frontiers. Newer and more conceptual technologies like in nanotechnology being about exciting discussion and studies on how to create machineries and designs on a microscopic level.

To get acquainted with the coursework for mechanical engineering, you have to have a wide knowledge base on a variety of disciplines like algebra, geometry, trigonometry, calculus, biology, chemistry and physics. The field of mechanical engineering focuses on these elements to create a variety of tools and machines to make easier for a variety of industries to work such as in manufacturing and even medicine.

Mechanical engineers start by analyzing the problems and creating plans with a variety of techniques and knowledge they got from studying and first-hand experience. It is very important that an engineer expresses that plan and the design well by using competitive communication skills as well as modern knowledge on 3-D and 2-D design. These are the tools needed to present a plan for machines, infrastructures and even transportation.
Mechanical engineering is a discipline that is extremely exciting and worth all the effort as you pass through all the rigorous coursework and training. This discipline applies various branches of math and sciences as well as modern technology to design and create new products and machineries.

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If there is a vehicle model that is as famous as the automobile itself, it has to be Ford motors. Its tentacles spread across every part of the world, where it has made a name as one of the global motor vehicle providers that has beaten the test of time in terms of vehicle manufacture and creativity. GMC engines are also one of the most significant names in the motor engine world, the love of automobile engineers and the delight of any lover of a high performing, quality car model.

Ford motors are an infamous American Multinational Corporation that has its base in a suburb of Detroit in Dearborn, Michigan. Founded by Henry Ford and incepted in 1903, the automaker has had more than a century of success in Motor engineering. In its wake of excellence, the company also owns the Mercury Brands, Lincoln as well as the Volvo vehicles from Sweden, as well as a significant but minute stake in the Japanese Mazda and the English Aston Martin.

At currently fourth in the league of the world’s largest automakers, Ford Motors has been the most significant of all Motor Makers across the world in the last hundred years, mostly due to its tenacity to manufacture vehicles in large scale. Within the same league of excellence in motor engineering is GMC, company that has provided the world with some of the most memorable car designs. General Motors has strong divisions that have been elaborate in engine development, such as the GMC trucks that an icon of innovation in the world of automobile engineering. GMC has been in the manufacture of medium duty vehicle models, SUVs and light trucks. GMC engines are also reliable and generally very popular in the world of automobile.

From these two giant vehicle makers, Fordmotorsand General Motors unique GMC engines,there have been many models manufactured while the engines they use depict great talent in this industry. On the other hand, if you have had an engine that has broken down or is giving you problems as a result of obsoleteness, it is time you got a replacement at an affordable cost, almost half the price of a new engine from these giant manufacturers. There is no reason for undergoing such a high cost of replacement with a new engine, while the distinction between a used engine and a new one is simply the price.

For many consumers today, they have realized the importance of the options existing for them from purchasing Ford motors or GMC engines or getting used ones in good shape. Do not find it as confusing while trying to find that car engine fit for your vehicle, since through online resources you can easily have all the answers about engine replacement answered. It hardly matters what Ford or GMC model engine you are searching for today, you are bound to get it online. The deals are also well packaged, providing you with a chance to have a discount and save on money without compromising on the engine quality.

Not only in the automobile industry but also across the divide of vehicle enthusiasts, the Porsche engine has made the car brand to earn traits of excellence and superiority. The Porsche car brand conjures the thoughts of great quality in a fashionable way, something that has resulted from a defined result in the vehicle industry.

There are some engines made with satisfaction embodied in their trait and the Porsche engine is one of these. It gives one the thought of reliability in a very powerful and stylish way. This has made Porsche to rise among the echelons of cars in the world to reign among the superb and best cars across the world. It has set a standard that continues to hallmark it among the global high standard cars.  The Porsche engine has been the emblem of the cars success, as it got recognition in 2006 as the single most prestigious car brand among any other.

It is perhaps the innovative ingenuity characterizing the Porsche Company making the brand to rise among its competitors to a certain class of its own. The Porsche engine has unique traits that have made the Company to receive offers from other car companies for the help to manage and develop their own products, such as the Subaru and Daewoo that have gained from the consultative services with the company. The prowess of the company in automobile engineering and innovation as depicted in its Porsche engine has also made other brands, for instance Harley-Davidson to seek the aid of the Porsche Company in the design of novel engines and perfect motor brands like motorcycles.

It is not only a stylish and classy car brand but also an emblem of innovation and ingenuity. Even when your Porsche car engine has broken down it is very easy to seek aid in getting a new engine. This might be quite expensive as compared to used engines that are in not only great shape but also going at very affordable prices. It is your chance to get your Porsche back on the road and enjoy the roar of another engine, almost like a new one, with the difference largely being on the price tag.

The Saturn engine is a sign that the automobile industry is in constant flourish as brands keep on competing among one another with impeccable features being developed to make one car model to rise among others. The satisfaction that The Saturn car brand offers is a pride of all in search of a popular car brand with impeccable satisfaction. Its Saturn engine parts are a manifestation that delivering quality brands is a great way of making it big in the automobile industry.

When it comes to replacing a Saturn engine, many have realized they can save a lot by going for used engines that are still in great condition. It is important that you get to find the best people to do the replacement for you, as you determine the mileage of the engine and the quality. They are ideals to check out for as you go for the best-used engine that you are searching for.

Any time you wield the thoughts of a perfect car that is highly powered, Chrysler and Ford engines come to mind. The Chrysler engine came into being in the 1930’s where it was one of the first ever cars to wield aerodynamic ideals in their design. In fact, the infamous Chrysler, the V8 Hemi engine entered the market in 1951. In addition, by 1961, Chrysler had downsized its brands line after dropping the nameplate, Desoto. Chrysler and Ford companies have been big names in the automotive industry that have transformed the world of vehicles, as we know it today.

In fact, from the 1960s to about 2003, engines from Chrysler were installed in passenger and commercial vehicles as well as other applications in need of the engine. The Chrysler engine models are Magnum based a feature that has been quite significant in offering designs that do bolt within the older muscle vehicles with zero or slight modification. They are a popular engine type that you should have no problem replacing.

Chrysler engines are immense, such as the Cirrus, Laser, 300 Crossfire, and the Chrysler Aspen among others. They represent the foreboding style in automobile manufacturing, with a high-powered performance that defines their longevity. For instance, the Chrysler Aspen is one of the latest members of the Chrysler family launched in 2007, as a sports utility car. In terms of the engine, the 2007 Chrysler Aspen has 3 engines, the 5,654, 4.7 and 4,701 cc V8. The Chrysler engine is not yet finished yet, since the latest of the Chrysler Aspen was released to various markets in 2009, wielding a 340 hp engine, carrying the hybrid systems that BMW and GM developed. However, this Chrysler version was discontinued after a legal process, meaning Chrysler has no SUV cars.

Apart from the thriving of the Chrysler engine,the Ford engines have been able to create a name and niche not only in the world of automobile engines but also in the vehicle industry. Ford is one of the most famous automobile names across the globe, with some very popular engines coming to the fore in the wake of its long history. Such is the V8 engine, Ford 351 Cleveland first came into being in 1969.

With the Chrysler engineand Ford engines, you have such infamous engines with high performance standards in any automobile market. However, you might find it expensive to replace these engines with new ones, meaning you might be in a dilemma, yet there is a way out. When it comes to an engine, the car might be forgotten as fast as possible but the engine will definitely be operational enough.

In the market today, there are superb used engines for both models that come with amicable warranties, while you only have to order and receive the engine at your home wherever you might be across the United States. You could get the used car engine at half the price of a new one while apart from the price alone, the rest of the specs are simply the same.

Software engineers worked on the every program you’re using on your computer. They were in charge of the software development process and computer application you use nowadays. Whereas software can be found in products, systems, and situations, software engineering is very much a necessity. It’s something that all of us rely on, especially under demanding conditions like monitoring and controlling nuclear power plants. All of the applications embedded in these functions consist of loads of codes. A software engineer is a person who applied engineering principles in the co-operative development of software. A good software engineer should not only generate computer programs but also learn the skills to produce good documentation, database and operational procedures for the computer system. He should be well defined about the components or modules of software engineering. In fact, these developed applications let users to make their work practical and creative. There are many software applications available in the market like language applications, office applications, entertainment packages, and applications for education. The integrity of software engineering is improved with software engineering standards.

These days more and more companies are requiring that their software engineers have certification. It is no longer the standard to pick up a job in this field simply because you have a huge amount of hands-on experience and training. For more detail go to: www.text2speech-converter.com.Companies wish employees and self-contractors that actually have taken the graduate-level courses and obtained certification. Software engineers require the skills to produce functional and technical design qualifications for software development. They must also have solid programming skills, and be familiar with data types, syntax and control structures. Along with the skill to properly analyze information, software engineers also need to be able to fix multifaceted application glitches and be able to produce quality requirement specifications, design documents and test plans. Problem solving and working as a team are also necessary parts of working as a software engineer.

Like any other industry, the software industry also has different categories in itself. Embedded software is just one category of the software industry. Embedded software is fairly different from traditional software. Embedded software does not have to worry about the information technology. For more detail go to: www.software-designers-pro.com. Embedded software is associated to the software’s reaction to the user and the external world. Embedded software is found in nearly all electronic devices, which need user interactivity to work. Like your digital watch, your electronic weight machine, the car doors, and a variety of other daily used gadgets. If you’re interested in a job in embedded software engineering, you’re making an intelligent choice as engineering is a vast industry with gainful returns. An embedded software engineer salary is considerably higher than the salary of a normal software engineer, simply because of the risks involved. Of course, the salary of anyone finally depends on the company, but an embedded software engineer will always get higher pay than a software engineer.