People integrate in apparatus

People integrate in apparatus
Staff reporter Tan Jia Through the trials of strength of 3 and a half hours, in the afternoon of August 13, Swiss star bank Serra wins the championship finally, have obtained the gold medal of man's personal time trial of road cycle of this Olympic Games. So far, all 4 gold medals of this Olympic Games road race have already found one's own host. Bicycle race to replace the intersection of contest and event of the step with the wheel while being only at the Olympic Games. In order to reach the ideal state that people's car unifies, people choose in the bicycle material, cudgel one's brain on the structural model, the purpose is to make athletes and the competition apparatus combine together. In the sports equipment and improvement of facilities, science and technology is playing an important role day by day, also injected more vigor into development of the Olympic Movement. People ideal the intersection of state and this Olympic Games the intersection of highway and route of bicycle race that car unify known as most difficult match route at the the intersection of Olympic Games and the intersection of road cycle and history. The competition route starts from Yongdingmen of the south of Beijing centre district in the south, reach Juyongguan Pass of the Great Wall in the north, the regional route of the terminal is a very difficult upward slope circuit. Athletes should win match, a light saddle horse that saves effort is essential. The resistance in the air of bicycle is directly proportional to with the square of speed. Test shows, when the speed rises to 11 meters per second, the air resistance accounts for 80% which advances total resistance. Reducing the most effective measure of resistance is to reduce the people - sectional area of the car system in direction. The body curls, buttock stilts, back straight riding the conduct posture and reducing the air resistance greatly up. The bicycle " Sheep's horn " Design only for help here kind posture. (leave and rotate the 2nd) The expert points out, lightening the contest helps athletes to save effort in the match even more by the dead weight of the bicycle. It is the course that the apparatus of sports is weeding out the old and bringing forth the new constantly that the bicycle reduces heavy history. On the choice of the bicycle material, it is the great progress that the aluminium alloy replaces steel. Light better carbon fiber can let the designer look like one " Skillful tailor " ,Recuperated the fibrous distribution direction of carbon by the strength difference according to frame different positions. In the Barcelona Olympics bicycle race in 1992, Bao DeMan was that England won the first gold medal since 72 years. He flat lay the priceless the whole the intersection of carbon element and the intersection of bicycle and total weight, less than 9 kilograms. The noticeable of this bicycle does not also include as the dish-shaped wheel of the spoke. Famous popular science writer Zhao Zhi really says, the wheel that the mankind invented at first is a round plank, have created the spoke in order to lighten the weight. But in advancing, the upper speed of the wheel is twice that of speed. Each spoke rotated at a high speed will produce the little air current swirl, give and advance to bring resistance. Modern ultra light material make the intersection of spoke and the intersection of board and wheel become, perhaps, can lower air resistance 5%. As the speed of the cycle racing is close terminally, it is very valuable that the bit of the apparatus is improved. People try to resolve the bicycle into as many as ten thousand units by analytic approach of finite element, through fictitious wind-tunnel being excellent to elect part, from round to make into the ellipse or of drop shape the intersection of pipe and section of bicycle, let, brake line and change speed line and even each bolt, nut both hide in the automobile body. In order to lighten the weight, people also convert compressed air in the fetus into the helium. The tire of the bicycle has a secret too. The tire width of the highway racing-cycle is fewer than one inch, pump enough air in, go on the solid and smooth ground, frictional force and air resistance can be minimized. Tires of the mountain biking are different to some extent. In order to adapt to the irregular coarse ground and easy to cross over the ditch bank of bunker, the driver must realize with the good contact of the ground and produce effective driving force with wider which is covered with tubercles tire. The new material helping hand gets promotion continuously like needing depending on the fine performance of the bicycle in bicycle race, most projects in the competitive sport must go on through the apparatus. The sports apparatus that Beijing Olympic Games needs reaches more than 2300 kinds, more than 1,400,000. Because adopt new material and new apparatus in the sports activity, every world record can be broken constantly. August 15, " rich and influential family of the gold medal " The track and field events will raise the curtain. The world record that one of the events vaults has close relation with the application of the new material. Carbon element glass fibre pole since the most primitive wooden pole, bamboo pole, metal pole, the development and utilization of the new material is creating the helping hand of the good result for strut athletes constantly. The key apparatus vaulting is a long strut, transmit strength, savings energy getting up, make athletes jump over suring on high great function. Elasticity and length of the strut are keys that athlete's ability gives play to. It is reported athlete to make the strut with heavy elastic apt wooden pole that break previously, preferably the achievement is 3.30 meters. In 1910, athletes began to use the weight more lightly and having certain elastic bamboo poles, preferably the achievement reaches 4.77 meters. The metal pole coming out subsequently is even, non- flexible in diameter, the worry apt to break of the strut that reduce bamboo quality. Athletes can improve and grip and click, accelerate the run-up speed, the achievement reaches 4.80 meters. In 1948, the glass fibre pole lighter with stronger elasticity in weight came out, carbon fiber appears to strengthen the composite material pole shortly afterwards. The human achievement of vaulting thereupon advances by leaps and bounds too. On July 31, 1994, on the athletics stadium of Italian Cestre Lille, world vaulted star Bubka jumped over 6.14 meters of horizontal poles at one blow with the glass fibre pole. This item record so far nobody can and. He thinks, if raising the sport achievement, must develop the new strut. At present, have researched and developed personnel and already developed more advanced graphite glass fibre and formated the pole. The application of elastic mechanics of magical effect of elastic mechanics is promoting the improvement of the apparatus of sports constantly, and the strange glamour of manifesting losting in thought on the court. By August 13, on this Olympic Games, China diving " Dream Team " Have already reaped 4 gold medals. In board match of 3 meters, the small springboard is " quivering " China is improving constantly completely. According to the introduction of expert, finish a beautiful diving springboard movement, the more important thing is to utilize rebounding strength of the springboard rationally, in order to obtain better take-offing in angle and height. No matter limp take-offs or against the halting and take-offing of the board, need arm, hip, knee, every joint coordinated action of ankle. Pressing plate movements of the whole body have certain height and strength, could shake rhythm with the springboard identically. The bigger the strength of the pressing plate is, the time that the ankle joint acts on the board is relative long, the greater the rebounding strength of the springboard is. This creates favorable condition in order that athletes obtained the height of enough soaring. The appearance of the springboard of aluminium alloy, has eliminated backward glass fibre springboard and cumbersome wooden springboard, have promoted the degree of difficulty of the springboard to mention greatly It is high. In the seventies of the 20th century, had already seethed forward for 4 weeks and seething and movement of turning of many weekses of different postures. With the changing of apparatus of diving? ��� the intersection of Mi and male �� impose, chew the intersection of clump and sauced error, U of Ma, impose large the intersection of �� and low Xia, go towards Ji of glue Bo the intersection of �Ҫ� and broom chew a clump of reeves to roll over?

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