代写论文

代写essay:自行车的活动及使用分析

代写essay:自行车的活动及使用分析。田径赛自行车,顾名思义,用在跑道上,主要是室内跑道上。这些自行车被设计得非常轻,可以用舒适来交换亮度。此外,公路赛车注重舒适性。它们的设计也更符合空气动力学,但在需要选择不同速度的情况下,为骑手提供不同的位置支持。铁人三项自行车有更优化的空气动力学。小轮车是为复杂和高强度的道路输入而设计的,也用于比赛。旅游自行车,顾名思义,就是用来旅游的。因此,这些自行车的制造商必须考虑到舒适性,同时要使它们足够轻,便于携带,但也要足够结实。山地车用于山地轨道、消防道路等,通常具有前置和全悬挂系统。接下来代写essay将为同学们分析下自行车的活动及使用。

场地自行车最初是为英国的比赛项目而制造的,多年来一直是奥运会场地自行车比赛项目的一部分。公路赛车用于道路上,如泥路等,铁人三项自行车也用于体育运动,但更多的是耐力类。旅游自行车用于路上和越野冒险。山地自行车主要用于越野活动,但也适用于旅游自行车无法覆盖的崎岖地形。小轮车被用于土地赛。

1. 框架

自行车车架是自行车的基本部件,自行车的其他部件都安装在这个车架上。

设计:

在比赛中使用的赛车的车架组件比较轻,但足够坚固来支持其他组件。

空气阻力是影响公路赛车和赛道赛车设计的重要因素。

机翼设计用于道路,轨道和铁人三项自行车,以减少空气动力阻力。

赛车和小轮车的座位位置是基于预期负载变化的形式,这些在设计中优先考虑。

旅游自行车的车架设计将包括更坚韧的车轮和直骑位置。

材料:

对于赛道赛车和铁人三项自行车,空气箔材料是用于制造管的框架。

公路自行车和赛道赛车都使用钢架,或更轻的合金或碳纤维。公路和赛道比赛自行车的车架通常也是由模压碳纤维制成的,以减轻重量。

BMX使用了碳钢和碳纤维,但更便宜的BMX自行车的车架将使用1020钢。

旅游自行车是用钢做的。

山地车也使用类似的材料,但重点通常是耐久性和性能。

生产:机架由裁管、钎焊、焊接、涂胶、校直、清洗组装而成。公路自行车的结构遵循的主要窒息结构的上管,下管和座位管。框架几何将发挥作用的生产轨道,道路和铁人三项自行车。建造的铁人三项自行车和公路自行车在框架几何的不同,在那,三轮车必须帮助流线型的骑手定位。公路自行车的车架角度要比三轮车小得多。

Track racing bikes came to be made for racing events in Britain and over the years have been included as part of the track cycling events in the Olympics. The road racing bike is used on the road, like mud roads, etc., Triathlon bikes are also used in sports, but more of the endurance kind. Touring bikes are used for on and off-road adventures. Mountain bikes are majorly used for off-road activities, but for rougher terrains than can be covered with touring bikes. BMX bikes are made use of in dirt racing.

1. Frame

Description: Bicycle frame is the basic component of the bike and it is on this frame that other components of the bike are fitted.

Design:

Frame component of racing bikes used in racing are a little lighter, but sturdy enough to support other components.

Aerodynamic drag is a big factor influencing design in both road and track racing bikes.

Airfoil designs are used for road, track and triathlon bikes in order to reduce the aerodynamic drag.

Seat position for racing bikes and BMX is based on the form of load variations expected and these take precedence in design.

Frame design of touring bikes will include more tough wheels and a straight riding position.

Materials:

For track racing bikes and triathlon bikes, air foil materials are used in the manufacture of tubes of the frame.

Road bikes and track racing bikes both make use of either steel frames, or lighter alloys or carbon fibre. Frames of road and track racing bikes are often constructed of molded carbon fibre too, for a lightweight design.

BMX makes use of Carbon steel and Carbon fibre, but for cheaper BMX bike frames 1020 steel will be used.

Touring bikes are made of steel.

Mountain bikes make use of similar materials, but the focus is usually on durability and performance.

Production: The frame is assembled by tailoring the tubes, brazing, welding, gluing and then by aligning and cleaning. Road bicycle construction follows the main strangle structure of top tube, down tube and seat tube. Frame geometry will play a role in the production of track, road and triathlon bikes. The construction of the triathlon bike and the road bike differ in the frame geometry in that, the tri bike has to help streamline the rider positioning. A road bike will have a much slacker frame angle compared to a tri bike.

以上内容就是代写essay将为同学们分析下自行车的活动及使用。同学们如需要论文代写帮助,可以寻求英国论文代写服务公司,英国论文代写平台机构有不同专业领域的代写专家,论文创作经验丰富,保障论文原创质量,杜绝剽窃和抄袭。并为同学们提供免费修改和检测服务,同学们可以随时在线咨询我们英国论文代写服务的专职客服!