This paper presents a novel active body weight support (BWS) method, which is capable of virtually offloading full or partial mass for potential application enhancing treadmill-based locomotion rehabilitation. The mass-offloading capability realized by actively compensating desired amount and inertia force using an acceleration-feedback scheme. method has been studied dynamics simulations specially designed nonhuman experiment. In the simulation study, human BWS device were modeled as...

Studies have indicated that reducing the process energy demand is as important improving conversion efficiency to make manufacturing equipment more efficient. However, little work has been done understand characteristics of widely employed drawing process. In this paper, cylindrical under a range operating parameters was measured and analyzed. Since any saving efforts should not negative effects on product quality, forming quality drawn part by maximum thinning thickening ratios variation...

It is well known that parallel robots may have singular configurations can result in a loss of full control the mechanisms. This paper analyzes two different categories singularities planar cable-driven with four or more cables. The unidirectional constraint cables makes singularity analysis from rigid-link even if they similar kinematical architectures. Based on their natures, are classified into categories: Jacobian and force-closure singularity. A occurs when matrix robot loses its rank....

The data reported in this article presents actual installation costs and performance for a selection of residential Ground Source Heat Pump (GSHP) systems Melbourne, Australia. cost includes five main components: ground loop installation, head pipe heat pump, mechanical room fittings. presented here timestamp, air temperature thermal loading. A more comprehensive analysis may be obtained from the entitled "Economic vertical source pump Melbourne" (Q. Lu, G.A. Narsilio, G.R. Aditya, I.W....

This paper presents a momentum-based approach for identifying the barycentric parameters of human body. The body is modeled as multiple rigid-body dynamical system with tree-type topology using principle impulse and momentum. Since resulting impulse-momentum equations are linear in terms unknown parameters, these can be easily solved least-square method or other well-understood solution techniques. does not require measuring estimating accelerations internal forces because they do appear...

Abstract Based on the existing compilation technology of load spectrum, this paper proposed a new method for general standard test spectrum aircraft engine. On premise meeting operating requirements actual condition and basic life test, it simplifies conditions overcomes shortage technology. According to flight engine, mission profile was divided into three parts: take-off phase, middle-flight landing phase. The ensures that generated phase is consistent with flight, programmed according...

As China's real estate development sector has undergone rapid expansion, conflicts and disputes within the market have grown increasingly conspicuous. The existence of "problematic properties" emerged as a significant risk factor impacting numerous urban areas in realm estate. Consequently, conducting systematic comprehensive research on these become crucial endeavor social mitigation management. This paper seeks to elucidate this specialized governance effort through lens specific city,...

Statically-balanced technology is often used to compensate partial or full gravity force exerting on a mechanism in order reduce the effort of driving mechanism. Since such compensation static, when statically-balanced for dynamic applications, it will still have impedance (mechanical resistance input motion) because subjects inertia forces although has been compensated. Such effect undesirable many especially those required physically interact with humans and hence, property needs be fully...

Because of the increasing concern regarding environmental sustainability, manufacturing equipment faces a challenge to optimize carbon emissions from life-cycle perspective. Current approaches lack overall low-carbon optimization flow guidance needed in order take effective measures for equipment. Consequently, this paper proposes framework Firstly, four-layer processes is established, consisting operation layer, method and tools data layer. Then, characteristics, functions, technologies...

Open die hot forging has a wide industrial application on deforming ingot into billet with desired dimension and qualified internal microstructure. An example open process of Ti-6Al-4V is selected herein. A 3D FE-based numerical method was used to investigate the respect real working conditions. The simulation results were validated by collected experimental parameters from system. Moreover, design experiment adopted regarding variation reveal effects critical factors product deformation...

The large end face run-out is a kind of shape and position tolerance, an important index in deciding the class tapered roller. auto-measuring sorting equipments for roller introduced this article intelligent measuring equipment that orientates pursuing measurement choosing every on grinding spot. According to professional standard about roller, (notated as S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DW</sub> ) must be measured dynamically...

As a great heavy industry province, Liaoning manufacturing plays pivotal role in terms of the Social Economic Development. During Twelfth Five-Year Plan period, How to promote Positive Interaction between Science and Technology Service Industry realize integration industrialization Information is significant historical task need resolve. Based on direct consumption coefficient, using clustering analysis technology .his paper discusses contribution improvement space for providing advice...

After a disaster, the recovery sequence of damaged bridges in road–bridge transportation system greatly influences restoration time and total economic loss. In this paper, skew trajectory is introduced to evaluate average time, loss extended consider indirect loss, such as energy consumption detours or emergency service fee. So, post-disaster resilience optimization model constructed by minimizing The improved genetic algorithm developed obtain optimal scheme for considering repair modes....

To achieve a fundamental reduction in the carbon emissions associated with grinding machines, it is imperative to systematically explore low-carbon considerations design phase. The spindle significant contributor and an effective approach for reducing structural optimization of spindle. Most current methods aim at improving processability without considering emissions. In this context, present study addresses issue within Initially, determination spindle’s function selection objective were...

Based on the direct consumption coefficient, using clustering analysis technology, our studies have showed that contribution of science and Technology Service Industry to six industrial categories smelting mangling process ferrous metal was lower. The four industry electrical machinery equipment manufacturing focused scientific technological exchanges promotion services; while technology services petroleum processing, coking nuclear fuel processing is not enough, its distribution more...

Mass center of a human body is not fixed point on the because inertia distribution changes with posture. Real-time estimation location mass often required for many biomechanical or biomedical applications. This an easy task if properties human’s segments are unknown. paper presents technique estimating trajectory based recently developed identification technology which was derived impulse-momentum principle. The proposed assumes as general treelike multibody system, such that predictable...

Petrochemical enterprises has been playing the important role in China's economic growth on long run , but with a low carbon economy coming, how to motivate petrochemical enterprise of production become common topic between government and enterprise. Because goal is different from that government, so companies are bound expand game drive their own interests. In this paper, through constructing model, carry analysis, study implementation incentive problems, as inspire provide theory basis.