A general algorithm for profiling and dressing grinding wheels when using a grinding spindle on a CNC lathe Remarkable progress is being made in the technology for grinding complicated geometrical parts. Today, some factories are considerin...
Abstract: This thesis focuses on a general lathe spindle，quantitatively analyzes the machining precision with spindle swinging in geometry way and derives a mathematical expression of machining errors at different swing frequencies． By...
Abstract This paper discusses issues regarding in-situ methods of obtaining sound power at a point in a heating, ventilating and air-conditioning (HVAC) duct system. Such a method is being used as part of a larger investigation on acoustica...
ABSTRACT This paper describes the sustainability concept of HVAC systems and discusses how underfloor air conditioning systems can be used to enhance the sustainability performance of commercial buildings. Possible benefits, flexibility and...
Design Approach of Cold-formed Steel Portal Frames Abstract A structural arrangement of a portal frame that is easy to fabricate and assemble is developed. The rafter and column members are formed from single cold-formed channel sections, w...
本文确定桥梁设计规范的发展提供标定方法和基础数据。结构类型包括木梁,锯成板胶合梁和各种各样的木材。负载和阻力参数视为随机变量,因此,结构特点是测量根据可靠性指标。桥恒...
Abstract The paper presents an analysis of roadway factors and posted speed limits that affect theoperating speed at multi-lane highways in Egypt. Field data on multi-lane highways in Egypt areused in this investigation. The analysis conside...
a b s t r a c tHybrid Fibre Concrete (HFC) is a self-compacting high-performance cementitious composite materialwith a high-strength mortar matrix reinforced by steel fibres. HFC structural walls are characterized bythe presence of conventio...
抗震设计的非线性分析方法一个相对简单的非线性结构抗震分析（N2方法）方法。它结合了静力弹塑性分析多度的自由度（MDOF）以及等效单自由度的自由度（SDOF）系统的响应谱分析模型...
近海岸结构平台大部分由圆形管节点组成，它们有个低风阻系数，很好的强度质量比，没有优惠屈服方向等优点。管结构的节点如图1所示。然而这些节点由于很高的应力集中、固有的焊...
