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Designing a machine with reduced dimensions requires optimizing specific loadings to ensure its performance does not degrade. Specific loading, in the context of machinery design, refers to the amount of load or work a machine is expected to handle per unit size or weight. Managing these specific loadings efficiently is crucial for creating compact yet powerful machines. Here are general strategies for achieving this:
1. Material Selection: Utilize materials with superior strength and durability properties. Higher strength-to-weight ratios allow for smaller dimensions without sacrificing performance. Advanced composites, high-strength alloys, and engineered plastics are often used in such applications.
2. Optimization of Design: Employ advanced design techniques, such as topology optimization, to remove unnecessary material while maintaining structural integrity and performance. This method relies on computational models to determine the most efficient material distribution within a given design space.
3. Minimize Stress Concentrations: By refining geometric features that cause stress concentrations (sharp corners, abrupt changes in cross-section), materials can be used more efficiently, allowing for lighter, slimmer designs without compromising durability.
4. Enhance Cooling and Lubrication Systems: For mechanical systems where heat and friction are concerns, improving cooling and lubrication can allow for higher specific loadings. Effective heat dissipation and reduced friction mean that components can operate closer to their material limits.
5. Incorporate High-Efficiency Power Transmission: In designs where power transmission is a limiting factor, using high-efficiency mechanisms such as optimized gear
Answer: a
Explanation: The output coefficient is proportional to the product of specific magnetic loading and specific electric loading. The output coefficient of a rotating electric machine is inversely proportional to the output coefficient. Thus, increased values of specific loadings will give a small size machine.