Showing posts with label Design innovations. Show all posts
Showing posts with label Design innovations. Show all posts
Saturday, April 28, 2012
Friday, October 24, 2008
Chandrayaan - 1
IIT Bombay alumni George Koshy (MTech '72 ME), a rocket scientist with the Indian Space Research Organisation (ISRO), is the project director for Chandrayaan-1, India 's maiden unmanned moon mission.
The SHAR spent Rs.396 crore only on this moon as comparatively less amount with other countries.
One of the team members of the scientists’ team interestingly commented no technocrat from IIT’s or MIT’s not take part in this space mission launching. Annadurai the project director of Chandrayan -1 is also an engineer from regional engineering college and schooling from a backward rural village. (It is in contradiction to first item)(differnt sources of information).
http://mynews.in/fullstory.aspx?passfrom=enterprisestory&storyid=11782
The SHAR spent Rs.396 crore only on this moon as comparatively less amount with other countries.
One of the team members of the scientists’ team interestingly commented no technocrat from IIT’s or MIT’s not take part in this space mission launching. Annadurai the project director of Chandrayan -1 is also an engineer from regional engineering college and schooling from a backward rural village. (It is in contradiction to first item)(differnt sources of information).
http://mynews.in/fullstory.aspx?passfrom=enterprisestory&storyid=11782
Saturday, August 30, 2008
Design Related Stories
The Autodesk Inventor 3D series helps Hardinge reduce design time by40 per cent to compete in the new low-price band
Like many companies in the manufacturing industry, Hardinge Inc. is affected by the new global economy where exchange rates, competition from foreign markets, the U.S. recession, and the ability to create inexpensive, yet high quality products are critical business challenges. The ma-chine tool industry in which Hardinge competes is highly competitive, particularly the Japanese and German markets. In addition, due to complex nature of the machine tool industry, design times can be long, making it difficult to quickly create a product in response to an immediate opportunity.
http://www.industry20.com/ReadArticle.php?StoryId=1614
The future of CAD driving revolution in three dimensions
3d CAd software will steadily improve engineering productivity by speeding the design process, suggesting options along the way, and identifying problems earlier...
We've witnessed dramatic advances in CAD usability, speed, graphics, 'intelligence,' and automation over the past few years, but even the best 3D mechanical design packages leave plenty of room for improvement. As with every area of computing, 3D mechanical design software still needs to be faster, easier to use, and more useful for communicating with non-engineers.
Author's Details
John J McEleney is the CEO of SolidWorks Corporation. SolidWorks Corporation (www. solidworks.com) develops and markets software for mechanical design, analysis, and product data management. Founded in 1993, SolidWorks' mission is to unleash the power of 3D for everyone in product development and foster a collaborative user community.
http://www.industry20.com/ReadArticle.php?StoryId=1598
Easy optimisation of design
Design Analysis with FEA is a technology that engineers use to simulate the physical behaviour of a design under specific operating conditions. in an exclusive interaction, Rajagopalan Varadarajan, technical Manager, Analysis Products, Asia Pacific Operations, solidWorks Corporation, explains its vital role to P K Chatterjee. Excerpts?
What is Finite Element Analysis or FEA?During the early 1990s, the product development process began evolving from the prototype-test approach to a new product development paradigm that is driven by comput-er-aided design (CAD) technology.
http://www.industry20.com/ReadArticle.php?StoryId=1560
Crossing The Design Challenge Chasm
The role of technology in the design process is increasing by the day. to ensure success, companies need to prioritise development of deep domain expertise and understand the pain areas?
The world of products is becoming increasingly complex. Succeeding in today's competitive product markets requires firms to respond more quickly to changing market demands, to differentiate more product variations for rapidly segmenting markets. Manufacturers have em-barked on continuous product improvement, delivering more features, more innovation, and better looking products all while meet-ing increasingly stringent product quality and supply chain cost targets.
Author's Details
Ajay Chamania Author: the author is senior Vice president, product engineering services, patni computer systems.
http://www.industry20.com/ReadArticle.php?StoryId=1549
Like many companies in the manufacturing industry, Hardinge Inc. is affected by the new global economy where exchange rates, competition from foreign markets, the U.S. recession, and the ability to create inexpensive, yet high quality products are critical business challenges. The ma-chine tool industry in which Hardinge competes is highly competitive, particularly the Japanese and German markets. In addition, due to complex nature of the machine tool industry, design times can be long, making it difficult to quickly create a product in response to an immediate opportunity.
http://www.industry20.com/ReadArticle.php?StoryId=1614
The future of CAD driving revolution in three dimensions
3d CAd software will steadily improve engineering productivity by speeding the design process, suggesting options along the way, and identifying problems earlier...
We've witnessed dramatic advances in CAD usability, speed, graphics, 'intelligence,' and automation over the past few years, but even the best 3D mechanical design packages leave plenty of room for improvement. As with every area of computing, 3D mechanical design software still needs to be faster, easier to use, and more useful for communicating with non-engineers.
Author's Details
John J McEleney is the CEO of SolidWorks Corporation. SolidWorks Corporation (www. solidworks.com) develops and markets software for mechanical design, analysis, and product data management. Founded in 1993, SolidWorks' mission is to unleash the power of 3D for everyone in product development and foster a collaborative user community.
http://www.industry20.com/ReadArticle.php?StoryId=1598
Easy optimisation of design
Design Analysis with FEA is a technology that engineers use to simulate the physical behaviour of a design under specific operating conditions. in an exclusive interaction, Rajagopalan Varadarajan, technical Manager, Analysis Products, Asia Pacific Operations, solidWorks Corporation, explains its vital role to P K Chatterjee. Excerpts?
What is Finite Element Analysis or FEA?During the early 1990s, the product development process began evolving from the prototype-test approach to a new product development paradigm that is driven by comput-er-aided design (CAD) technology.
http://www.industry20.com/ReadArticle.php?StoryId=1560
Crossing The Design Challenge Chasm
The role of technology in the design process is increasing by the day. to ensure success, companies need to prioritise development of deep domain expertise and understand the pain areas?
The world of products is becoming increasingly complex. Succeeding in today's competitive product markets requires firms to respond more quickly to changing market demands, to differentiate more product variations for rapidly segmenting markets. Manufacturers have em-barked on continuous product improvement, delivering more features, more innovation, and better looking products all while meet-ing increasingly stringent product quality and supply chain cost targets.
Author's Details
Ajay Chamania Author: the author is senior Vice president, product engineering services, patni computer systems.
http://www.industry20.com/ReadArticle.php?StoryId=1549
Tuesday, June 24, 2008
Bajaj Auto unveils revolutionary DTS-Si engine
Pune, 9thAugust 2007
Bajaj Auto, has achieved another breakthrough with the launch of new ‘Digital Twin Spark - Swirl induction’ (DTS-Si) engine. The new 125cc engine with DTS-Si technology will give an amazing mileage of 109 kilometers per liter under ideal test conditions surpassing the mileage of all current 100cc motorcycles.
Designed and developed completely by ‘**Ahead’, Bajaj Auto’s R&D, the technology promises to revolutionalise the industry with India’s most fuel-efficient two-wheeler engine.
Bajaj had first dramatically improved on existing engine technology in 2003 when it launched the DTS-i (Digital Twin Spark-ignition) engine with two Spark plugs located at opposite ends of the combustion chamber (as compared to a single spark plug in conventional 4-stroke engines) to achieve faster and more efficient combustion. The DTS-i technology offered better performance, improved fuel efficiency with lower emissions and helped establish the Bajaj Pulsar and then the Bajaj Discover as leaders in their respective segments.
The DTS-i Engine can be further engineered to deliver either exceptional performance or exceptional mileage. Bajaj Auto worked on the mother DTS-i technology to design the DTS-Si engine to deliver outstanding mileage. The DTS-Si technology gives the highest possible fuel efficiency by introducing ‘Swirl induction’ to the DTS-i engine to create turbulence in order to achieve extremely efficient combustion.
The DTS-Si engine is far superior to the conventional 4-stroke engines, which dominate the 100cc segment at present. With the new DTS-Si engine the consumer now would not have to compromise between power and mileage - he gets the best of both.
DTS-Si (DIGITAL TWIN SPARK - SWIRL induction)
Introduction
In a conventional single spark plug equipped combustion chamber, the rate of combustion is slow. The spark plug situated at one end of the combustion chamber, ignites the air-fuel mixture and the ensuing flame front spreads like a slowly inflating balloon. There is an inevitable delay for this inflating balloon to reach the furthest part of the combustion chamber. Thus, the combustion is slow and inefficient.
Digital Twin Spark ignition (DTS-i system)
The Digital Twin Spark – ignition, equipped combustion chamber takes care of the slow rate of combustion in a simple but novel way. The cylinder head is equipped with two spark plugs, instead of the conventional single spark plug. By generating two sparks at either ends of the combustion chamber, (approximately 90° to the valve axis) the Air-Fuel mixture gets ignited such that, there are 2 flame fronts created and therefore a reduction in flame travel of the order of 40% is achieved. A fast rate of combustion is achieved leading to a fast rate of pressure rise. The obvious outcome of this is more torque, better fuel efficiency and lower emissions.
Digital Twin Spark – Swirl induction (DTS-Si system)
The Digital Twin Spark - ignition or DTS- i is the mother technology for the latest Digital Twin Spark – Swirl induction or DTS-Si technology.
Thanks to DTS- i, a fast rate of combustion and therefore the resulting fast rate of pressure rise is harnessed, by optimally positioning this pressure, to deliver maximum possible work and hence obtain more torque, better fuel efficiency and lower emissions.
When burning lean Air-Fuel mixtures, the two plugs provide rapid combustion, but at light loads, opportunity exists to improve the combustion further.
Combustion efficiency in lean Air-Fuel mixture conditions can be further improved by generating high turbulence in the combustion chamber.
Combustion chambers having low turbulence give rise to propagation of a flame front, which is akin to that of a gradually expanding balloon. This results in a slower rate of combustion and thus slower rate of pressure rise. End result is lower efficiency.
When high turbulence is generated and combustion takes place, the surface of the ballooning flame front fragments itself, with projection like fingers, which increases its surface area, thereby improving combustion further.
The straight ports used in conventional engines have limitations in generating high swirl values due to their geometry. One of the ways to generate more swirl is to have a port configuration that promotes this phenomena. An offset port configuration was arrived upon and optimised to generate the required swirl numbers.
Incorporated in the new engine, this results in a swirling motion of the incoming charge, which decays itself into turbulence as the piston moves in the Induction and Compression strokes. This results in the Air-Fuel mixture being more thoroughly mixed and spread around the combustion chamber. Sparks provided by the twin spark plugs ignite this highly turbulent and compressed Air-Fuel mixture, leading to a flame front with high surface area, resulting in a rapid rise of pressure due to rapid combustion. The values of turbulence achieved now, are substantially higher than that of a straight port cylinder head, such as in Pulsar. A combination of DTS-i and Swirl induction thus provides extremely rapid combustion, resulting in high efficiency.
Bajaj Auto, has achieved another breakthrough with the launch of new ‘Digital Twin Spark - Swirl induction’ (DTS-Si) engine. The new 125cc engine with DTS-Si technology will give an amazing mileage of 109 kilometers per liter under ideal test conditions surpassing the mileage of all current 100cc motorcycles.
Designed and developed completely by ‘**Ahead’, Bajaj Auto’s R&D, the technology promises to revolutionalise the industry with India’s most fuel-efficient two-wheeler engine.
Bajaj had first dramatically improved on existing engine technology in 2003 when it launched the DTS-i (Digital Twin Spark-ignition) engine with two Spark plugs located at opposite ends of the combustion chamber (as compared to a single spark plug in conventional 4-stroke engines) to achieve faster and more efficient combustion. The DTS-i technology offered better performance, improved fuel efficiency with lower emissions and helped establish the Bajaj Pulsar and then the Bajaj Discover as leaders in their respective segments.
The DTS-i Engine can be further engineered to deliver either exceptional performance or exceptional mileage. Bajaj Auto worked on the mother DTS-i technology to design the DTS-Si engine to deliver outstanding mileage. The DTS-Si technology gives the highest possible fuel efficiency by introducing ‘Swirl induction’ to the DTS-i engine to create turbulence in order to achieve extremely efficient combustion.
The DTS-Si engine is far superior to the conventional 4-stroke engines, which dominate the 100cc segment at present. With the new DTS-Si engine the consumer now would not have to compromise between power and mileage - he gets the best of both.
DTS-Si (DIGITAL TWIN SPARK - SWIRL induction)
Introduction
In a conventional single spark plug equipped combustion chamber, the rate of combustion is slow. The spark plug situated at one end of the combustion chamber, ignites the air-fuel mixture and the ensuing flame front spreads like a slowly inflating balloon. There is an inevitable delay for this inflating balloon to reach the furthest part of the combustion chamber. Thus, the combustion is slow and inefficient.
Digital Twin Spark ignition (DTS-i system)
The Digital Twin Spark – ignition, equipped combustion chamber takes care of the slow rate of combustion in a simple but novel way. The cylinder head is equipped with two spark plugs, instead of the conventional single spark plug. By generating two sparks at either ends of the combustion chamber, (approximately 90° to the valve axis) the Air-Fuel mixture gets ignited such that, there are 2 flame fronts created and therefore a reduction in flame travel of the order of 40% is achieved. A fast rate of combustion is achieved leading to a fast rate of pressure rise. The obvious outcome of this is more torque, better fuel efficiency and lower emissions.
Digital Twin Spark – Swirl induction (DTS-Si system)
The Digital Twin Spark - ignition or DTS- i is the mother technology for the latest Digital Twin Spark – Swirl induction or DTS-Si technology.
Thanks to DTS- i, a fast rate of combustion and therefore the resulting fast rate of pressure rise is harnessed, by optimally positioning this pressure, to deliver maximum possible work and hence obtain more torque, better fuel efficiency and lower emissions.
When burning lean Air-Fuel mixtures, the two plugs provide rapid combustion, but at light loads, opportunity exists to improve the combustion further.
Combustion efficiency in lean Air-Fuel mixture conditions can be further improved by generating high turbulence in the combustion chamber.
Combustion chambers having low turbulence give rise to propagation of a flame front, which is akin to that of a gradually expanding balloon. This results in a slower rate of combustion and thus slower rate of pressure rise. End result is lower efficiency.
When high turbulence is generated and combustion takes place, the surface of the ballooning flame front fragments itself, with projection like fingers, which increases its surface area, thereby improving combustion further.
The straight ports used in conventional engines have limitations in generating high swirl values due to their geometry. One of the ways to generate more swirl is to have a port configuration that promotes this phenomena. An offset port configuration was arrived upon and optimised to generate the required swirl numbers.
Incorporated in the new engine, this results in a swirling motion of the incoming charge, which decays itself into turbulence as the piston moves in the Induction and Compression strokes. This results in the Air-Fuel mixture being more thoroughly mixed and spread around the combustion chamber. Sparks provided by the twin spark plugs ignite this highly turbulent and compressed Air-Fuel mixture, leading to a flame front with high surface area, resulting in a rapid rise of pressure due to rapid combustion. The values of turbulence achieved now, are substantially higher than that of a straight port cylinder head, such as in Pulsar. A combination of DTS-i and Swirl induction thus provides extremely rapid combustion, resulting in high efficiency.
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