For example, if the sail is let out too far for the wind's direction, the leading edge may shake or start to blow inward. Tightening up the sheet usually corrects luffing.
例如，当帆在风向上被放出太多时，它的前缘可能会抖动或开始向内侧弯，将绳索拉紧通常能矫正之。
The optimal mathematical model for the luffing mechanism of a plane link is constructed.
构造了平面连杆变幅机构的优化数学模型。
A new-type quayside container crane with jib-bridge luffing system as the main working part is brought out.
提出一种以臂桥架变幅系统为主要工作机构的岸边集装箱起重机。
A new method of calculating the driving power of portal crane luffing mechanism is introduced in this paper.
本文介绍了一种计算门座起重机变幅机构驱动功率的新方法一瞬心回转功率法。
This paper introduces an optimal method for designing the weight-balance system of the four-link luffing mechanism.
本文介绍了一种四连杆变幅机构平衡重系统的优化设计方法。
There are hoisting mechanism of crane, slewing mechanism, the luffing mechanism and metal structure selection in this article.
设计主要包括起重机的起升机构、回转机构，变幅机构及金属结构的选择。
The double rocker mechanism (with back rocker driving) is used to luffing operation of floating crane. It has high productivity and transfer flexibility.
这种双摇杆变幅机构可用于浮式起重机的带载变幅作业，具有高的生产率和作业灵活性。
At present, the research of dynamic characteristics on luffing mechanism of crawler crane is relatively lacking at home and abroad, and is not enough overall.
目前国内外对于起重机变幅机构动态特性的研究比较少，而且研究不够全面。
This paper presents the main types and features of luffing mechanisms of goose neck jib lorry loading cranes and proposes design requirements for 304304 type luffing mechanism.
介绍了随车起重机变幅机构的主要形式和特点，提出304304型变幅机构在设计时的要求。
Portal crane sub frame and four-link arm two types, from the crane hoisting, luffing, slewing and walking four agencies ac frequency control, the machine USES PLC control, superior performance.
门座式起重机分单臂架和四连杆两种类型，起重机的起升、变幅、回转和行走四大机构均采用交流变频调速，整机采用PLC控制，使用性能优越。
Double step drum is an integral drum with stepwise flanges and double step sections. It allows the multiple layer rope winding in non-operating portion of luffing mechanism to make drum shorter.
双阶梯卷筒是一种带有阶梯法兰盘和双阶梯截面的综合式卷筒，可在变幅机构的非工作区段使钢丝绳多层卷绕，以缩短卷筒长度；
Double step drum is an integral drum with stepwise flanges and double step sections. It allows the multiple layer rope winding in non-operating portion of luffing mechanism to make drum shorter.
双阶梯卷筒是一种带有阶梯法兰盘和双阶梯截面的综合式卷筒，可在变幅机构的非工作区段使钢丝绳多层卷绕，以缩短卷筒长度；
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