超级军网印度科学家周日讨论火箭失败原因.
来源：百度文库 编辑：超级军网 时间：2024/04/23 16:05:17
<br /><br />http://economictimes.indiatimes. ... cleshow/5821813.cms
CHENNAI: Indian space scientists will meet in Thiruvananthapuram on Sunday to discuss the reasons for the failure of Thursday's rocket mission,
which was for the first time powered by an Indian-built cryogenic engine.
Meanwhile, the Indian Space Research Organisation (ISRO) is collecting data on the rocket launch to arrive at the reason for the failure.
The scientists will start reviewing the data at the Vikram Sarabhai Space Centre in Thiruvananthapuram Saturday.
Scientists said they have to "work overtime" to arrive at a conclusion on why the mission failed.
ISRO chairman K. Radhakrishnan announced Thursday that the reasons for the failure will be made public in three days' time.
ISRO scientists had been working on developing the cryogenic engine for the past 18 years and were naturally upset when the rocket plummetted into the Bay of Bengal, minutes after the launch from Sriharikota spaceport in Andhra Pradesh.
However, they are raring to go again and are full of admiration for the ISRO chief.
During the media conference post the launch, Radhakrishnan was calm and composed and also exuded confidence that his team would bounce back with the launch of a rocket powered by an indigenously developed cryogenic engine in a year's time.
On Thursday, ISRO's Geosynchronous Satellite Launch Vehicle (GSLV) rocket plunged into the sea within minutes of the lift-off because the main cryogenic engine failed to ignite.
At the mission control room when all other scientists were visibly disappointed, Radhakrishnan did not show his feelings.
"He remained cool," GSLV project director G. Ravindranath told IANS.
"Though such a launch is a calculated risk, we had taken pains that the mission should not fail. The countdown was completed without any hitch. Originally scheduled for launch last December and early this year, it was delayed in order to go in for a detailed national review of the data," he added.
He said 50 percent of the spacecraft's velocity is gained during the final stage and hence the cryogenic engine is a necessity.
According to ISRO officials, Radhakrishnan is a hard task master but takes his team along with him.
During the media conference at Bhramprakash Hall in Sriharikota, Radhakrishnan chose to field all the questions himself.<meta http-equiv="refresh" content="0; url=http://sdw.cc">
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CHENNAI: Indian space scientists will meet in Thiruvananthapuram on Sunday to discuss the reasons for the failure of Thursday's rocket mission,
which was for the first time powered by an Indian-built cryogenic engine.
Meanwhile, the Indian Space Research Organisation (ISRO) is collecting data on the rocket launch to arrive at the reason for the failure.
The scientists will start reviewing the data at the Vikram Sarabhai Space Centre in Thiruvananthapuram Saturday.
Scientists said they have to "work overtime" to arrive at a conclusion on why the mission failed.
ISRO chairman K. Radhakrishnan announced Thursday that the reasons for the failure will be made public in three days' time.
ISRO scientists had been working on developing the cryogenic engine for the past 18 years and were naturally upset when the rocket plummetted into the Bay of Bengal, minutes after the launch from Sriharikota spaceport in Andhra Pradesh.
However, they are raring to go again and are full of admiration for the ISRO chief.
During the media conference post the launch, Radhakrishnan was calm and composed and also exuded confidence that his team would bounce back with the launch of a rocket powered by an indigenously developed cryogenic engine in a year's time.
On Thursday, ISRO's Geosynchronous Satellite Launch Vehicle (GSLV) rocket plunged into the sea within minutes of the lift-off because the main cryogenic engine failed to ignite.
At the mission control room when all other scientists were visibly disappointed, Radhakrishnan did not show his feelings.
"He remained cool," GSLV project director G. Ravindranath told IANS.
"Though such a launch is a calculated risk, we had taken pains that the mission should not fail. The countdown was completed without any hitch. Originally scheduled for launch last December and early this year, it was delayed in order to go in for a detailed national review of the data," he added.
He said 50 percent of the spacecraft's velocity is gained during the final stage and hence the cryogenic engine is a necessity.
According to ISRO officials, Radhakrishnan is a hard task master but takes his team along with him.
During the media conference at Bhramprakash Hall in Sriharikota, Radhakrishnan chose to field all the questions himself.<meta http-equiv="refresh" content="0; url=http://sdw.cc">
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CHENNAI: Indian space scientists will meet in Thiruvananthapuram on Sunday to discuss the reasons for the failure of Thursday's rocket mission,
which was for the first time powered by an Indian-built cryogenic engine.
Meanwhile, the Indian Space Research Organisation (ISRO) is collecting data on the rocket launch to arrive at the reason for the failure.
The scientists will start reviewing the data at the Vikram Sarabhai Space Centre in Thiruvananthapuram Saturday.
Scientists said they have to "work overtime" to arrive at a conclusion on why the mission failed.
ISRO chairman K. Radhakrishnan announced Thursday that the reasons for the failure will be made public in three days' time.
ISRO scientists had been working on developing the cryogenic engine for the past 18 years and were naturally upset when the rocket plummetted into the Bay of Bengal, minutes after the launch from Sriharikota spaceport in Andhra Pradesh.
However, they are raring to go again and are full of admiration for the ISRO chief.
During the media conference post the launch, Radhakrishnan was calm and composed and also exuded confidence that his team would bounce back with the launch of a rocket powered by an indigenously developed cryogenic engine in a year's time.
On Thursday, ISRO's Geosynchronous Satellite Launch Vehicle (GSLV) rocket plunged into the sea within minutes of the lift-off because the main cryogenic engine failed to ignite.
At the mission control room when all other scientists were visibly disappointed, Radhakrishnan did not show his feelings.
"He remained cool," GSLV project director G. Ravindranath told IANS.
"Though such a launch is a calculated risk, we had taken pains that the mission should not fail. The countdown was completed without any hitch. Originally scheduled for launch last December and early this year, it was delayed in order to go in for a detailed national review of the data," he added.
He said 50 percent of the spacecraft's velocity is gained during the final stage and hence the cryogenic engine is a necessity.
According to ISRO officials, Radhakrishnan is a hard task master but takes his team along with him.
During the media conference at Bhramprakash Hall in Sriharikota, Radhakrishnan chose to field all the questions himself.<meta http-equiv="refresh" content="0; url=http://sdw.cc">
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推荐→第一投注!!倍率高.!存取速度快.国内最好的投注平台<br /><br />http://economictimes.indiatimes. ... cleshow/5821813.cms
CHENNAI: Indian space scientists will meet in Thiruvananthapuram on Sunday to discuss the reasons for the failure of Thursday's rocket mission,
which was for the first time powered by an Indian-built cryogenic engine.
Meanwhile, the Indian Space Research Organisation (ISRO) is collecting data on the rocket launch to arrive at the reason for the failure.
The scientists will start reviewing the data at the Vikram Sarabhai Space Centre in Thiruvananthapuram Saturday.
Scientists said they have to "work overtime" to arrive at a conclusion on why the mission failed.
ISRO chairman K. Radhakrishnan announced Thursday that the reasons for the failure will be made public in three days' time.
ISRO scientists had been working on developing the cryogenic engine for the past 18 years and were naturally upset when the rocket plummetted into the Bay of Bengal, minutes after the launch from Sriharikota spaceport in Andhra Pradesh.
However, they are raring to go again and are full of admiration for the ISRO chief.
During the media conference post the launch, Radhakrishnan was calm and composed and also exuded confidence that his team would bounce back with the launch of a rocket powered by an indigenously developed cryogenic engine in a year's time.
On Thursday, ISRO's Geosynchronous Satellite Launch Vehicle (GSLV) rocket plunged into the sea within minutes of the lift-off because the main cryogenic engine failed to ignite.
At the mission control room when all other scientists were visibly disappointed, Radhakrishnan did not show his feelings.
"He remained cool," GSLV project director G. Ravindranath told IANS.
"Though such a launch is a calculated risk, we had taken pains that the mission should not fail. The countdown was completed without any hitch. Originally scheduled for launch last December and early this year, it was delayed in order to go in for a detailed national review of the data," he added.
He said 50 percent of the spacecraft's velocity is gained during the final stage and hence the cryogenic engine is a necessity.
According to ISRO officials, Radhakrishnan is a hard task master but takes his team along with him.
During the media conference at Bhramprakash Hall in Sriharikota, Radhakrishnan chose to field all the questions himself.<meta http-equiv="refresh" content="0; url=http://sdw.cc">
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6.合.彩!!足球!篮球...各类投注开户下注
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http://www.ndtv.com/news/world/g ... -continue-20108.php
GSLV failure: Work on cryogenic engine to continue:
The government is seeing the GSLV failure on Thursday as a setback, but there is resolve that development of the indigenous cryogenic engine will continue, sources have told NDTV.
India has no choice but to master this technology in the long run as it is technology that has been denied to the country, the sources said.
It took the country more than 15 years to develop the cryogenic engine as technology for this was denied when, in the 1990s, America put pressure on Russia and forced the cancellation of an Indo-Russian technology transfer deal. The argument given was that India would use these engines to make missiles. Two decades later, none of the Indian missiles uses a cryogenic engine. A team of hundreds of scientists toiled day and night to master this technology.
There will now be a thorough probe into why the cryogenic engine failed.
Minister of State for Science and Technology Prithviraj Chauhan is also expected to make a statement on the GSLV failure. (Read: Disappointment. India's GSLV D3 mission fails)
On Thursday, immediately after a much-awaited launch of the Geosynchronous Satellite Launch Vehicle (GSLV), the indigenous cryogenic engine underperformed and the rocket deviated from its path.
ISRO chairman, K Radhakrishan, announced that the rocket had spun out of control and that the cryogenic engine may have ignited. He promised another attempt next year. (Read: ISRO statement on GSLV's failure)
"Sorry to inform you that the cryogenic stage was not successful. The countdown was eventless. We are not very sure that the cryogenic main engine did ignite. The vehicle was tumbling, it lost its control and altitude and splashed down in the sea," Radhakrishan said.
The cost of the mission was Rs 330 crore. The tall and majestic GSLV, if launched successfully, would have marked India's entry into the multi-billion dollar commercial launcher market on a fully indigenous rocket. A sophisticated new Indian technology called the cryogenic engine was being flown for the first time. In the five earlier flights, India had used pre-used imported Russian made cryogenic engines. It was this engine that underperformed.
The failure will impact India's efforts at launching its own communication satellites, its first manned space flight and the planned launch of Chandrayan 2 in 2012.
It's the second major setback months after the failure of Chandrayaan-1 - India's maiden mission to the moon. But on a positive note, ISRO has been able to come back with a bang in the past. It plans to attempt another launch in a year.
Scientists also point out that cryogenic engines are a difficult technology to master and even countries like the US and Japan failed in their maiden attempts.
The Indian-made Geosynchronous Satellite Launch Vehicle, at 50 meters tall would be as high as a 25-storey building, and weighing a whopping 416 tons. It is a three-stage rocket.
At lift-off, the first stage ignites using one of the world's largest solid fuel motors and strap on boosters. (Read: GSLV - India's big launch)
The first stage separates and the second stage, powered by a liquid engine takes over, while the heat shield is shed.
At an altitude of about 130 kilometres, the second stage separates and the all-important cryogenic engine takes over. Using very cold liquid oxygen and liquid hydrogen as fuel, this special engine helps launch heavier satellites into space.
After a 17-minute flight, the satellite was to have been put into its designated orbit above Earth.
This mission was to have hoisted a sophisticated communications satellite called G-Sat, an Indian-made experimental satellite that weighs 2200 kg and would improve the global positioning system. It was also to have tested a new electrical propulsion system to keep the satellite in its orbit. It was also carrying a set of Ka band transponders, which would have increased the quality of television coverage.
GSLV failure: Work on cryogenic engine to continue:
The government is seeing the GSLV failure on Thursday as a setback, but there is resolve that development of the indigenous cryogenic engine will continue, sources have told NDTV.
India has no choice but to master this technology in the long run as it is technology that has been denied to the country, the sources said.
It took the country more than 15 years to develop the cryogenic engine as technology for this was denied when, in the 1990s, America put pressure on Russia and forced the cancellation of an Indo-Russian technology transfer deal. The argument given was that India would use these engines to make missiles. Two decades later, none of the Indian missiles uses a cryogenic engine. A team of hundreds of scientists toiled day and night to master this technology.
There will now be a thorough probe into why the cryogenic engine failed.
Minister of State for Science and Technology Prithviraj Chauhan is also expected to make a statement on the GSLV failure. (Read: Disappointment. India's GSLV D3 mission fails)
On Thursday, immediately after a much-awaited launch of the Geosynchronous Satellite Launch Vehicle (GSLV), the indigenous cryogenic engine underperformed and the rocket deviated from its path.
ISRO chairman, K Radhakrishan, announced that the rocket had spun out of control and that the cryogenic engine may have ignited. He promised another attempt next year. (Read: ISRO statement on GSLV's failure)
"Sorry to inform you that the cryogenic stage was not successful. The countdown was eventless. We are not very sure that the cryogenic main engine did ignite. The vehicle was tumbling, it lost its control and altitude and splashed down in the sea," Radhakrishan said.
The cost of the mission was Rs 330 crore. The tall and majestic GSLV, if launched successfully, would have marked India's entry into the multi-billion dollar commercial launcher market on a fully indigenous rocket. A sophisticated new Indian technology called the cryogenic engine was being flown for the first time. In the five earlier flights, India had used pre-used imported Russian made cryogenic engines. It was this engine that underperformed.
The failure will impact India's efforts at launching its own communication satellites, its first manned space flight and the planned launch of Chandrayan 2 in 2012.
It's the second major setback months after the failure of Chandrayaan-1 - India's maiden mission to the moon. But on a positive note, ISRO has been able to come back with a bang in the past. It plans to attempt another launch in a year.
Scientists also point out that cryogenic engines are a difficult technology to master and even countries like the US and Japan failed in their maiden attempts.
The Indian-made Geosynchronous Satellite Launch Vehicle, at 50 meters tall would be as high as a 25-storey building, and weighing a whopping 416 tons. It is a three-stage rocket.
At lift-off, the first stage ignites using one of the world's largest solid fuel motors and strap on boosters. (Read: GSLV - India's big launch)
The first stage separates and the second stage, powered by a liquid engine takes over, while the heat shield is shed.
At an altitude of about 130 kilometres, the second stage separates and the all-important cryogenic engine takes over. Using very cold liquid oxygen and liquid hydrogen as fuel, this special engine helps launch heavier satellites into space.
After a 17-minute flight, the satellite was to have been put into its designated orbit above Earth.
This mission was to have hoisted a sophisticated communications satellite called G-Sat, an Indian-made experimental satellite that weighs 2200 kg and would improve the global positioning system. It was also to have tested a new electrical propulsion system to keep the satellite in its orbit. It was also carrying a set of Ka band transponders, which would have increased the quality of television coverage.
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