1) overload constraint
过载约束
1.
An approach to the optimized reentry-trajectory design of lift-body under aerodynamic overload constraint was proposed.
研究了升力体航天器再入大气层的弹道优化设计问题,提出了过载约束条件下再入弹道的优化设计思路,给出了最优弹道随高度变化的绕速度轴滚转角大小的计算方法。
2) restraint forces
约束载荷
1.
To get the buckling deformation,configuration and restraint forces of tubular strings sealed in packers,the buckling behavior of tubing neared parkers was analyzed in this paper.
目前的封隔器管柱屈曲分析没有考虑靠近封隔器段非螺旋屈曲段管柱,没有给出非螺旋屈曲段管柱的变形表达式和封隔器对管柱的约束载荷。
3) constraint loading
约束加载
4) overconstraint
过约束
1.
Study on Analysis and Design of Overconstraints and Self-adjusting Structures for Planar Linkage Mechanisms;
平面连杆机构的过约束及自调结构的分析与设计研究
2.
Based on the analysis of functional structure of a stopper,overconstraints were analyzed by various functional structures in different working stages,according to the self-adaptive structural characteristics of variable structure,variable freedom and internal force closure of stopper.
分析了堵渣机的功能结构,根据堵渣机所具有的变结构、变自由度及内力封闭的自适应结构特征,对其不同工作阶段的不同功能结构的过约束进行分析,提出了含力封闭高副的多杆变结构及变自由度自适应机械系统的自调结构设计的原则与方法,得出了自适应机械的自调结构既能根据内部误差进行自调,又能根据外部工作条件的变化进行自调的重要结论,实际工程应用实践证明了这一点。
3.
The paper analyzed non-overconstraint structure,freedom degree s configuration of the series Watt type six-bar mechanism,self-adjusting and the permissible errors under the configuration.
分析了串联watt型六杆机构的无过约束结构、自由度配置及在此配置下的自调与允差。
5) overconstraints
过约束
1.
There are more overconstraints in the mechanism.
由于该执行机构中存在过多的过约束,导致该机构安装困难及工作过程中零件的严重磨损。
6) over-constraint
过约束
1.
The number of over-constraint and its bad effects within 3-ZZ(ZRZZ)RR planar parallel mechanism were analyzed.
分析了平面3-RRR三自由度并联机构中存在的过约束及其有害影响,详细讨论了在保证3-RRR并联机构平面运动特性的情况下无过约束自调结构的设计问题,得出了几种新的平面三自由度并联机构运动副配置方案,深入分析了2-RCS-RRR结构的自调特性。
2.
For seeking a simple, regular, and widely realizing self-adjusting designing way, this article uses approach of the follow text to design no over-constraint and self-adjusting mechanism.
为了寻求简单、规律性强以及能全面使机构实现自调的设计方法,文章借鉴了平面连杆机构自调结构组的策略与方法,提出了行星结构集的概念与划分原则,并对其进行约束与自由度分析,设计出无过约束的自调结构集。
3.
Based on the idea and method of Engineering Robust Design, and with the application of general constraint and the standpoint that uncertainty of plane constraint exists abroad in plane closed chain mechanism as well, this paper makes a detailed analysis for the over-constraint cases of function gener.
本文引入稳健设计的思路与策略,运用"广义约束"和"平面闭链机构中普遍存在平面约束不确定的观点"对函数发生机构的过约束情况进行了详细的分析。
补充资料：高过载座舱
通过后倾座椅提高飞行员机动飞行时抗过载能力的座舱，又称高加速度座舱。飞机机动飞行时的正过载通常为 4～6g，持续十几秒。飞行员的正过载耐力一般为4g左右。穿抗荷服和作M-1动作（见超重生理效应）虽可提高飞行员的抗过载能力，但却不能满足现代歼击机更高的机动性要求。高过载座舱与普通座舱的区别主要是它具有可向后倾斜的弹射座椅；仪表板、驾驶杆、操纵手柄、旋钮和开关等都是为适应倾斜坐姿操作方便而安排的。歼击机飞行员座椅相对于飞机垂直轴方向一般成13°～20°后倾角。飞机机动飞行时，高过载座舱座椅向后倾斜到65°，这样可以使飞行员提高2～3g 的抗过载能力。倾斜座椅可以设计为铰接式。应急弹射时，座椅可回到正常位置，然后起动弹射程序。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条