A physical value mapping (PVM) algorithm based on finite element mesh from the stamped part in stamping process to the product is presented, In order to improve the efficiency of the PVM algorithm, a search way from...A physical value mapping (PVM) algorithm based on finite element mesh from the stamped part in stamping process to the product is presented, In order to improve the efficiency of the PVM algorithm, a search way from the mesh of the product to the mesh of the stamped part will be adopted. At the same time, the search process is divided into two steps: entire search (ES) and local search (LS), which improve the searching efficiency. The searching area is enlarged to avoid missing projection elements in ES process. An arc-length method is introduced in LS process. The validity is confirmed by the results of the complex industry-forming product.展开更多
In February, the auto production and sales amounted to 170,000 units, higher than the same period of last years. It was an important cause that most manufactures had a good production beginning. In February, 178,000 u...In February, the auto production and sales amounted to 170,000 units, higher than the same period of last years. It was an important cause that most manufactures had a good production beginning. In February, 178,000 units of automobiles were produced, 26.73% up over last month. The accumulated production of February amounted to 319,600 units, rose by 27.20% up over the same period of last year. Because ’the China Automobile, Civil retrofitted vehicle, motorcycle manufactures and their production catalog’ was emended, the above data included some new enterprises’ production. Removed this factor, the展开更多
Compared with last month, April is the golden time for auto industry. In April, auto production and sales rose by a wide margin over the same period of last year. Information from the CAAM shows that in April 236,048 ...Compared with last month, April is the golden time for auto industry. In April, auto production and sales rose by a wide margin over the same period of last year. Information from the CAAM shows that in April 236,048 automobiles rolled of the production line, 30.90% up over the last month. According to the relevant statistics, the accumulated production (of January to April, the same below) was 787。展开更多
In January, 137,303 units of automobiles were turned out, 2.93% down over the last January. The productions of cars and buses were 9.39% and 6.32% up over the last January with the volumes of 40,814 and 52,365 units. ...In January, 137,303 units of automobiles were turned out, 2.93% down over the last January. The productions of cars and buses were 9.39% and 6.32% up over the last January with the volumes of 40,814 and 52,365 units. But the productions of cars and buses were 26.41% and 8.78% down over last month. While the figure for trucks in January was 6.40% down and 36.35% down over the same period of last year and last month respectively with the output of 44,124 units. The auto sales in January amounted to 121,103 units, 4.20% down over the same period of last year. Especially the sales were 43.83%展开更多
The accumulated automobile production and sales rose by 23.26% and 25.72% respectively over the same period of last year. In March, 233,117 units of auto were turned out, 30.90% up over last month. The accumulated pro...The accumulated automobile production and sales rose by 23.26% and 25.72% respectively over the same period of last year. In March, 233,117 units of auto were turned out, 30.90% up over last month. The accumulated production of January^March was 550,993 units. It is remarkable that the acc(?)mulated production of cars, trucks, and buses all increased at high speed, 19.03%, 22.98%, and 26.94% up over the same period of last year respectively.展开更多
Ⅰ. Status of Auto Instrument Industry in China Begun in the year of 1951, China’s auto instrument manufacturing industry has a long history of more than 40 years. Now, it hms an annual production capacity of 2 milli...Ⅰ. Status of Auto Instrument Industry in China Begun in the year of 1951, China’s auto instrument manufacturing industry has a long history of more than 40 years. Now, it hms an annual production capacity of 2 million sets, and an employee of more than 10 thousand展开更多
In 1998, China encountered difficulties in economy which had seldom occurred since the reform and open-ing-up. The national economy increased by 7.8% in GDP, a decline of 1% over 1997. Under such a eco-nomical circums...In 1998, China encountered difficulties in economy which had seldom occurred since the reform and open-ing-up. The national economy increased by 7.8% in GDP, a decline of 1% over 1997. Under such a eco-nomical circumstance, China auto industry witnessed characteristics differing from those of previous years which are described as below: 1. Production and sales growth from moderate展开更多
Due to the seven-day-holiday and the state policy on relaxing the control over the price of cars, the production and sales in May had a correction, nearly 16% down.
More than 20 years have passed since 1984 when Beiqi and AMC (became part of Chrysler in 1987) established China's first joint venture in the auto industry to produce the Jeep. The history can be divided into two ...More than 20 years have passed since 1984 when Beiqi and AMC (became part of Chrysler in 1987) established China's first joint venture in the auto industry to produce the Jeep. The history can be divided into two phases. The 1980 witnessed a lot of technology being introduced from abroad and since the late 1990's the joint ventures have been engaged in "market for technology". The mass joint ventures have improved the entire auto industry through introducing funds, technology and management, and given im...展开更多
1. General situation of the auto engine sector 1.1 The economical operation During the recent years, series of measures have been taken by the Chinese government to ignite the national economy, which include: readjust...1. General situation of the auto engine sector 1.1 The economical operation During the recent years, series of measures have been taken by the Chinese government to ignite the national economy, which include: readjusting economic growth strate-gy from encouraging exports to boosting domestic demands; global-ly enlarging the infrastructural con-展开更多
1. Big groups have been led the integration over extensive region The famous groups are playing main roles, for the sake better production layout, greater market shares and sharper competition edge. The cases included...1. Big groups have been led the integration over extensive region The famous groups are playing main roles, for the sake better production layout, greater market shares and sharper competition edge. The cases included FAW-Hainan Mazda,展开更多
基金This project is supported by National Natural Science Foundation ofChina(No.l9832020) and National Outstanding Youth Science Foundation ofChina(No.10125208).
文摘A physical value mapping (PVM) algorithm based on finite element mesh from the stamped part in stamping process to the product is presented, In order to improve the efficiency of the PVM algorithm, a search way from the mesh of the product to the mesh of the stamped part will be adopted. At the same time, the search process is divided into two steps: entire search (ES) and local search (LS), which improve the searching efficiency. The searching area is enlarged to avoid missing projection elements in ES process. An arc-length method is introduced in LS process. The validity is confirmed by the results of the complex industry-forming product.
文摘In February, the auto production and sales amounted to 170,000 units, higher than the same period of last years. It was an important cause that most manufactures had a good production beginning. In February, 178,000 units of automobiles were produced, 26.73% up over last month. The accumulated production of February amounted to 319,600 units, rose by 27.20% up over the same period of last year. Because ’the China Automobile, Civil retrofitted vehicle, motorcycle manufactures and their production catalog’ was emended, the above data included some new enterprises’ production. Removed this factor, the
文摘Compared with last month, April is the golden time for auto industry. In April, auto production and sales rose by a wide margin over the same period of last year. Information from the CAAM shows that in April 236,048 automobiles rolled of the production line, 30.90% up over the last month. According to the relevant statistics, the accumulated production (of January to April, the same below) was 787。
文摘In January, 137,303 units of automobiles were turned out, 2.93% down over the last January. The productions of cars and buses were 9.39% and 6.32% up over the last January with the volumes of 40,814 and 52,365 units. But the productions of cars and buses were 26.41% and 8.78% down over last month. While the figure for trucks in January was 6.40% down and 36.35% down over the same period of last year and last month respectively with the output of 44,124 units. The auto sales in January amounted to 121,103 units, 4.20% down over the same period of last year. Especially the sales were 43.83%
文摘The accumulated automobile production and sales rose by 23.26% and 25.72% respectively over the same period of last year. In March, 233,117 units of auto were turned out, 30.90% up over last month. The accumulated production of January^March was 550,993 units. It is remarkable that the acc(?)mulated production of cars, trucks, and buses all increased at high speed, 19.03%, 22.98%, and 26.94% up over the same period of last year respectively.
文摘Ⅰ. Status of Auto Instrument Industry in China Begun in the year of 1951, China’s auto instrument manufacturing industry has a long history of more than 40 years. Now, it hms an annual production capacity of 2 million sets, and an employee of more than 10 thousand
文摘In 1998, China encountered difficulties in economy which had seldom occurred since the reform and open-ing-up. The national economy increased by 7.8% in GDP, a decline of 1% over 1997. Under such a eco-nomical circumstance, China auto industry witnessed characteristics differing from those of previous years which are described as below: 1. Production and sales growth from moderate
文摘Due to the seven-day-holiday and the state policy on relaxing the control over the price of cars, the production and sales in May had a correction, nearly 16% down.
文摘More than 20 years have passed since 1984 when Beiqi and AMC (became part of Chrysler in 1987) established China's first joint venture in the auto industry to produce the Jeep. The history can be divided into two phases. The 1980 witnessed a lot of technology being introduced from abroad and since the late 1990's the joint ventures have been engaged in "market for technology". The mass joint ventures have improved the entire auto industry through introducing funds, technology and management, and given im...
文摘1. General situation of the auto engine sector 1.1 The economical operation During the recent years, series of measures have been taken by the Chinese government to ignite the national economy, which include: readjusting economic growth strate-gy from encouraging exports to boosting domestic demands; global-ly enlarging the infrastructural con-
文摘1. Big groups have been led the integration over extensive region The famous groups are playing main roles, for the sake better production layout, greater market shares and sharper competition edge. The cases included FAW-Hainan Mazda,