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标题: 请问PVP结构和VPP结构一样吗？ [打印本页]

作者: mgbike 时间: 2008-4-1 11:30
标题: 请问PVP结构和VPP结构一样吗？
谁了解后减震的结构，能详细地说明一下吗？

作者: foxracing 时间: 2008-4-1 13:06
VPP就是VPP。你看到的那个所谓PVP，是VPP的一个标志。

作者: 开水 时间: 2008-4-1 13:09
引用下SantaCruz的VPP介绍。

VPP Linkage:
VPP suspension designs balance different forces to
eliminate unwanted compression without limiting bump absorption.
The downward force on your pedals pushes most full suspension bikes down, resulting in unwanted suspension compression. VPP bikes use a patented link configuration and axle path to apply some of the pulling force from the
chain to counteract that motion caused by pedaling.
Because the forces are balanced, VPP bikes remain able to absorb bumps when pedaling, unlike other designs that effectively lock out the rear suspension by applying too much chain pulling force. What you end up with is plush
travel with no pedal-induced compression or lockout and no need for manual lockouts or other compromises.
VPP Sag and Active Suspension:
VPP's balance of counteracting pedaling and bump forces is optimized at the recommended "sag" point. Sag is the amount the suspension compresses when the rider is in a neutral position. For example, when sitting on the bike at rest or riding on smooth terrain. This point is about 1/4 to 1/3 of the way into the suspension travel.
VPP bikes are designed to be ridden with sufficient sag to provide truly active suspension, meaning the suspension compresses (positive travel) and extends (negative travel) with rises and dips in the trail. A VPP owner rides in a suspended "pocket" with ample positive and negative travel available to maintain traction and momentum in all trail conditions, even while pedaling.

VPP Shock Rates:
Shock rate plays a huge part in any suspension frame design. Shock rate refers to how much the shock compresses for a given amount of rear wheel travel. A "falling rate" design is harder to compress at the beginning of the travel than at the end of the travel. A "rising rate" design is the opposite, easier to compress at the beginning than at the end. By experimenting with hundreds of different pivot placements and linkage designs, our engineers tune the shock rates on VPP bikes to both rise and fall at different points throughout the suspension travel, tailoring the attitude of the bike for different conditions and uses and maximizing the benefits of the VPP linkage and axle path. It takes a long time but it shows in the performance of each bike.

Frame Construction:
A great suspension design by itself is not enough to make a great bike. To realize the potential of VPP technology, every frame is carefully engineered without compromise in materials or construction methods. We start with custom tubesets made from the strongest and lightest aluminum alloys available. Then we use a variety of advanced design and construction techniques, including custom part design, strategic gusseting, modified weld bead profile and shot-peening. Prototypes undergo rigorous laboratory and real-world testing. Each frame is analyzed for high-stress areas when pushed to the limit. Geometry is tested, tweaked, and tested again. Every part of every frame receives an obsessive amount of attention to minimize weight, maximize strength, durability, and serviceability. We've designed custom double-row angular-contact full-complement bearings that are lighter and stronger than anything else out there. The shocks that come on our frames are valved specifically for each model to make the ride quality that much better. We don't spend our time writing frivolous patents or coming up with silly acronyms for the innovations we employ.
We'd rather go for a ride, wouldn't you?

作者: 丧家狗 时间: 2008-4-1 23:46
严格来说不是，我看过介绍，PVP和VPP有点不同，标称是比VPP更好的结构.

但是差的不是很多,原理上，所以也可以看成是VPP的衍生结构.

作者: 藤原拓海110 时间: 2008-4-1 23:51

原帖由开水于 2008-4-1 13:09 发表
引用下SantaCruz的VPP介绍。

VPP Linkage:
VPP suspension designs balance different forces to
eliminate unwanted compression without limiting bump absorption.
The downward force on your pedals pu ...

英文看不懂希望开水给我补补英语

作者: foxracing 时间: 2008-4-2 00:13

原帖由 丧家狗 于 2008-4-1 23:46 发表
严格来说不是，我看过介绍，PVP和VPP有点不同，标称是比VPP更好的结构.

但是差的不是很多,原理上，所以也可以看成是VPP的衍生结构.

哦？
在哪里看到的？还能找到不？

作者: Dp 时间: 2008-4-2 18:06
台湾的X什么什么ion有一个架子.看上去和SANTA CRUZ的BLUT结构一样的,但是写的是PVP结构.

作者: 开水 时间: 2008-4-2 18:29

http://www.xtension.com.tw/xoops223/product_frame_xelite-ii.php

parabolic virtual pivot，抛物线式虚拟转点技术，其实就vpp嘛

[ 本帖最后由开水于 2008-4-2 18:39 编辑 ]

作者: Dp 时间: 2008-4-2 18:42

原帖由开水于 2008-4-2 18:29 发表

 http://www.xtension.com.tw/xoops223/product_frame_xelite-ii.php

parabolic virtual pivot，抛物线式虚拟转点技术 ...

对头....
LZ说有区别嘛.我就记得有个架子是PVP结构.

作者: foxracing 时间: 2008-4-2 18:56
哦…………
这种小厂的东西没有关心过。
不好意思，误导大众了。

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