Lightweight construction

Conveyor-Belt Devices The metal-belt type (Fig. 11. 55) is the only device in this classification of material-haudhug equipment that has had serious effort expended on it to adapt it to indirecl heat-transfer seiwice with divided solids. It features a lightweight construction of a large area with a thin metal wall. ludirect-coohiig applications have been made with poor thermal performance, as could be expected with a static layer. Auxihaiy plowlike mixing devices, which are considered an absolute necessity to secure any worthwhile results for this seiwice, restrict applications. 

STC ratings for wall constructions vary from about STC-15 for simple lightweight constructions to constructions. Ratings for some wall constructions are indicated in Table 5. 

The following requirements for a combat tourniquet are the result of data, discussions, and conclusions drawn from the above conferences and studies. The requirements listed below, which are different than those for a clinical tourniquet, emphasize factors including self-application and operation, mobility, and lightweight construction. 

Furthermore, Endres et al. were also able to deposit aluminum alloys such as Al-Mn, which are widely used in the automotive and aviation industries for lightweight construction. The deposition was performed from a Lewis acidic ionic... 

With regard to azide-free gas mixtures, there have been numerous patents and initial applications since the early nineties. These new gas mixtures generate more gas per gram (gas yields from gas mixtures containing NaN3 0.30-0.35 l/g) and thus enable smaller and to some extent a more lightweight construction of the gas generators. 

Lightweight constructions with improved mechanical properties versus classical metallic materials... 

These fibers are, due to their high thermal stability, particularly suitable for applications in high temperature thermal insulation and for the manufacture of metal matrix and ceramic matrix composites. They arc clearly superior to metal materials due to their lower weight, particularly in the lightweight construction of accelerated structure elements for which the basic material should represent an improve-... 

In recent years, the concept of light construction has led to the development of hybrid structural parts. Using parts made of pure plastic runs into repeated difficulties because of the material s low modulus of elasticity, since the only way to compensate for this drawback is to use much thicker structures. Combinations of sheet metal materials with plastics facilitate new solutions that do justice to the concept of lightweight construction and provide new properties at the same time (sound insulation, thermal conductivity, dynamic stability, corrosion protection). The precondition for successful development of such hybrid structural parts is a reliable bond between the two materials. In certain cases, this must be realized by adhesives that are flexible with regard to the a problem (different heat expansion coefficients of the materials), but still provide high strength levels. 

Schraft, R. D., Wolf, A., and Schmierer, G., A Moduleir Lightweight Construction System for Qimb-ing Robots, in Proceedings of First International Symposium on Climbing and Walking Robots (Brussels, November 26-28 1998). 

New applications of adhesive bonding can be expected where the specific advantages of this joining technique will be usable. Due to lightweight construction, which will be more and more important, outside panels must be used as supporting parts of the body structure. Conventional sheet steel constructions often show welded joints at the visible... 

Environmental — Reduced fuel consumption during product life — Fully recyclable in the form of similar structural components (middle layer) — Lightweight construction potential for reduced fuel consumption during product life — Not known as compared to metal or metal hybrid version — Market for secondary raw materials still very small... 

Environmental — Lightweight constructions save energy in mobile applications... 

It is obvious that certain actuating properties of transducer materials are far beyond the ones of conventional actuating principles. This enables to use them in special application areas such as lightweight construction, active vibration control, or the development of highly dynamic systems for instance. 

Institute of Forming Technology and Lightweight Construction, Technical University of Dortmund, Dortmund, Germany Institut fiir Umformtechnik und Leichtbau, Technical University of Dortmund, Dortmund, Germany... 

The application fields of such structures will be found where lightweight construction allows a higher acceleration capacity at the same driving power or energy savings. This is why bent profiles have been used more and more in various fields of traffic engineering (automobile industry, utility vehicles constmction, railway... 

D and 3D bent profiles, also new ways for lightweight construction can be opened up (Chatti et al. 2010 Hermes 2012). Especially in traffic systems, this leads to lower energy consumption and CO2 emissions. 

Key words lightweight construction, textile building materials, structural behaviour, physical characteristics. 

The development of lightweight constructions over the past few years shows that so far only a small fraction of the possibilities for the use... 

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