A Kinematic Study on a Novel Press System

2007 ◽  
Vol 364-366 ◽  
pp. 595-600 ◽  
Author(s):  
Wen Hsiang Hsieh
Keyword(s):  
Energy Consumption ◽  
Lower Energy ◽  
Lower Cost ◽  
High Reliability ◽  
Solid Model ◽  
Kinematic Simulation ◽  
Kinematic Study ◽  
Adams Software ◽  
Mechanical Press ◽  
Crank Mechanism

The work aims to present a novel press system, and to investigate its feasibility by performing a kinematic study. Firstly, the new design is proposed, which is composed by a motor, a constant speed coupling, a gear reducer, a generalized Oldham coupling, and a slider-crank mechanism. Secondly, its structural sketch is drawn, and its kinematic dimensions are obtained by studying its motion geometry. Then, a design example is given for illustration. Moreover, the solid model of the design is established, and then the validity of the design is verified by kinematic simulation using ADAMS software. Finally, the effects of different link ratios on the output motion are examined by conducting a number of simulations. The results of simulations show that the new design can produce more flexible output motion than a mechanical press. In addition, it has the advantages of lower cost, high reliability, and lower energy consumption, compared to a servo press.

A Study on a Novel Vibrating Conveyor

2009 ◽  
Vol 419-420 ◽  
pp. 45-48 ◽  
Author(s):  
Wen Hsiang Hsieh ◽  
Chia Heng Tsai
Keyword(s):  
Solid Model ◽  
Kinematic Simulation ◽  
Adams Software ◽  
Simulation Results ◽  
Novel Concept

The purpose of this study is to present a novel concept for inline vibrating conveyors, and verify its feasibility by kinematic simulation. First, new conveyor is presented, and its merits are discussed. Then, its kinematically equivalent linkage is described. Moreover, the kinematic dimensions are investigated from its geometry. Finally, the solid model for the proposed design is established, then kinematic simulation is performed by ADAMS software. The simulation results indicate that the proposed new design can effectively advance the workpiece.

A Study on the Technology and Equipment for Recycling Spent Zinc-Manganese Dry Batteries

2010 ◽  
Vol 43 ◽  
pp. 748-751 ◽  
Author(s):  
Qing Zhong He ◽  
Jun Qing Li ◽  
Jia Wang
Keyword(s):  
Energy Consumption ◽  
Recovery Rate ◽  
Lower Energy ◽  
Lower Cost ◽  
Processing Technology ◽  
Secondary Pollution ◽  
Integrated Processing ◽  
Key Techniques

This paper presents an integrated processing technology for the recycling of spent Zn-Mn dry batteries by means of dry-wet method, which combines mechanical decortications and vacuum technique. On the basis of analyzing current research and applications, the characteristics and problems of existing technologies in this field are discussed. Research achievements such as its processing, key techniques and equipment for mechanical decortications are introduced in detail. This technology has many advantages, including higher recovery rate, lower energy consumption, minimum secondary pollution and lower cost for equipment, which is suitable for the purpose of recycling spent batteries in small and medium-sized cities and provides a new option for technicians and researchers in related fields.

A STUDY ON A NOVEL QUICK RETURN MECHANISM

2009 ◽  
Vol 33 (3) ◽  
pp. 487-500 ◽  
Author(s):  
Wen-Hsiang Hsieh ◽  
Chia-Heng Tsai
Keyword(s):  
Experimental Setup ◽  
Reasonable Accuracy ◽  
Kinematic Simulation ◽  
Time Ratio ◽  
Adams Software ◽  
Novel Design ◽  
Crank Mechanism ◽  
Equivalent Mechanism

This work aims to propose a novel design for quick return mechanisms, and the new mechanism is composed by a generalized Oldham coupling and a slider-crank mechanism. First, the kinematic dimensions that affect the time ratio are found by investigating the geometry of the proposed design. By transforming into its kinematically equivalent mechanism, and then the design equations of time ratio are derived. Furthermore, a design example is given for illustration. Moreover, the design is validated by kinematic simulation using ADAMS software. Finally, a prototype and an experimental setup are established, and the experiment is conducted. The results show that proposed new mechanism is feasible and with reasonable accuracy. In addition, it is more compact and easier to be balanced dynamically than a conventional quick return linkage.

Kinematic Study on a New Coil Winder of RSPC Type

2010 ◽  
Vol 156-157 ◽  
pp. 1488-1491 ◽  
Author(s):  
Wen Hsiang Hsieh ◽  
Chia Heng Tsai
Keyword(s):  
Design Constraints ◽  
Kinematic Simulation ◽  
Kinematic Chains ◽  
Kinematic Study ◽  
Adams Software ◽  
Design Requirements ◽  
Number Synthesis

The objective of this paper aims at investigating the feasibility of new coil winders with a spatial RSPC mechanism by conducting kinematic simulation. First, the design requirements and design constraints are specified based on the kinematics characteristic of coil winders. Then, the (4, 4) kinematic chains are obtained by number synthesis, and the atlas of feasible chains is generated. After that, the atlas of specialized feasible chains is found. Finally, new designs are obtained through the particularization process. In addition, an illustrated example of the RSPC mechanismselected from the new designs is given, and its feasibility is verified by performing kinematic simulation using ADAMS software. The result shows that it can meet the motion requirement of coil winders.

On the Kinematic of a Coil Winder of RCRC Type

2014 ◽  
Vol 1030-1032 ◽  
pp. 1219-1223
Author(s):  
Wen Hsiang Hsieh ◽  
Chia Heng Tsai
Keyword(s):  
Topological Structure ◽  
Kinematic Chain ◽  
Kinematic Simulation ◽  
Kinematic Study ◽  
Adams Software

The purpose of this study aims at performing the kinematic study of the coil winder with a RCRC mechanism by investigating the geometry and conducting kinematic simulation. First, the motion principle of the shuttle is addressed. Then, the topological structure of the RCRC mechanism is examined, and its kinematic chain and kinematic sketch are drawn. Finally, a design example of the RCRC mechanism is given for illustration, and its feasibility is verified by performing kinematic simulation using ADAMS software. Finally, the simulated result shows that the shuttle can produce the required winding motion.

scholarly journals Effects of the Geometric Parameters of Mixer on the Mixing Process of Foam Concrete Mixture and Its Energy Efficiency

2020 ◽  
Vol 10 (22) ◽  
pp. 8055
Author(s):  
Sergey A. Stel’makh ◽  
Evgenii M. Shcherban’ ◽  
Anatolii I. Shuiskii ◽  
Al’bert Yu. Prokopov ◽  
Sergey M. Madatyan ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Lower Energy ◽  
Geometric Parameters ◽  
Concrete Mixture ◽  
Mixing Process ◽  
Conical Part ◽  
Foam Concrete ◽  
Optimal Range ◽  
Optimal Values

The paper studies the influence of the geometric parameters of the mixer on the mixing process, the construction of the mixing body, its location in the mixer bulk, and the mixer shape and geometry. The technique of calculating the power spent on mixing the foam concrete mixture is described. The effects of the ratio of the mixture height to the mixer diameter, the number and width of reflective partitions, and the shape of the conical part of the mixer on the homogeneity of the foam concrete mixture and the power consumption are considered. The optimal ratios of the foam concrete mixture height to the mixer diameter have been determined. Moreover, the optimal range of the ratios of the partition width to the mixer diameter has been established, in order to obtain a homogeneous foam concrete mixture throughout the volume with lower energy consumption. The optimal values of the angle of the mixer conical part for the preparation of a foam concrete mixture have been determined.

Aluminum Reflow Sputtering

MRS Bulletin ◽  
1995 ◽  
Vol 20 (11) ◽  
pp. 53-56 ◽  
Author(s):  
Kuniko Kikuta
Keyword(s):  
Integrated Circuit ◽  
High Speed ◽  
Lower Cost ◽  
High Reliability ◽  
Device Fabrication ◽  
Damascene Process ◽  
Aspect Ratios ◽  
Multi Level ◽  
Poor Adhesion ◽  
Lower Resistivity

The scaling of integrated-circuit device dimensions in the horizontal direction has caused an increase in aspect ratios of contact holes and vias without a corresponding scaledown in vertical dimensions. Conventional sputtering has become unreliable for handling higher aspect-ratio via/contact holes because of its poor step coverage. Several studies have attempted to overcome this problem by using W-CVD and reflow technology. The W-CVD is used for practical device fabrications. However, this technique has several problems such as poor adhesion to SiO2, poor W surface morphology, greater resistivity than Al, and the need of an etch-back process.Al reflow technology using a conventional DC magnetron sputtering system can simplify device-fabrication processes and achieve high reliability without Al/W interfaces. In particular, the Al reflow technology is profitable for multi-level interconnections in combination with a damascene process by using Al chemical mechanical polishing (CMP). These interconnections are necessary for miniaturized and high-speed devices because they provide lower resistivity than W and simplify fabrication processes, resulting in lower cost.This article describes recent Al reflow sputtering technologies as well as application of via and interconnect metallization.

One-pot three-step mechanically assisted synthesis and catalytic performance of tripodal metallic complexes

2021 ◽  
Author(s):  
Rima Tedjini ◽  
Raquel Viveiros ◽  
Teresa Casimiro ◽  
Vasco D.B. Bonifácio
Keyword(s):  
Energy Consumption ◽  
Lower Energy ◽  
Catalytic Performance ◽  
Green Technology ◽  
Waste Reduction ◽  
One Pot ◽  
Reaction Conversion

Mechanosynthesis is an emergent green technology that proceeds under solventless or vestigial solvent conditions. Major advantages relay in waste reduction and lower energy consumption, without compromising or enhancing reaction conversion....

Study on Dynamic Simulation of Wind Turbine Gearbox Based on Pro/E and ADAMS

2014 ◽  
Vol 644-650 ◽  
pp. 442-445
Author(s):  
Wen Zhi Yang ◽  
Ju Feng Cao ◽  
Wei Zhang
Keyword(s):  
Wind Turbine ◽  
Virtual Prototype ◽  
Prototype Model ◽  
Solid Model ◽  
Wind Turbine Gearbox ◽  
Adams Simulation ◽  
Adams Software ◽  
Box Structure ◽  
Virtual Prototyping Technology ◽  
Necessary Constraints

Domestic wind turbines with 1.5MW gearbox as the research object, application of virtual prototyping technology (ADAMS) simulation of dynamics of wind turbine gearbox when braking .According to research gear box structure, size and other parameters, using Pro / E software to create a solid model of wind turbine gearboxes. After importing to the ADAMS software, add the necessary constraints and loads, virtual prototype model of the gearbox is established. The simulation of dynamics of wind turbine gearbox are carried out by using ADAMS, and the angular velocity of the in-out shaft, gear meshing force and the vibration when braking cloud are obtained. That result is match with the theoretical value through analysis and the accuracy of ADAMS simulation is verified. The simulation results show that the design level of wind turbine gearboxes can be improved by using the virtual prototype technology and lay a good foundation for further design.

Effect of the Window Position in the Building Envelope on Energy Consumption

2018 ◽  
Vol 7 (3) ◽  
pp. 1861
Author(s):  
Neveen Y. Azmy ◽  
Rania E. Ashmawy
Keyword(s):  
Energy Consumption ◽  
Light Intensity ◽  
Environmental Performance ◽  
Lower Energy ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Natural Lighting ◽  
Energy Plus ◽  
Window Position

Windows play a significant role as they largely influence the energy load. Although there are many studies on the energy-efficient windows design, there is still a lack in information about the mutual impact of windows’ size, position and orientation on the energy loads. In this paper, the effect of different window positions and orientations on the energy consumption in a typical room in an administrative building that is located in the hot climatic conditions of Cairo city, Egypt is considered. This case study has been modeled and analyzed to achieve good environmental performance for architectural space, as well as assessing its impact on the amount of natural lighting required by using the Energy Plus program. The study concludes that the WWR (Window Wall Ratio) 20% square north-oriented upper  opening consumes 25% lower energy than the rectangular 3:1 opening in the lower west-oriented façade. The upper openings are the highest in terms of light intensity, as they cover about 50% of the room area. The WWR 30% rectangular north-oriented upper 3:1 opening consumes 29% lower energy than the rectangular lower 3:1opening in the façade. Regarding light intensity, the upper openings are the best for natural lighting as the light covers more than 60% of the room area.                                                                                                                                                               

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