Có 58+ tài liệu thuộc chủ đề "tiêu chẩn thiết kế"
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TABLE 34.9 Formulas for Computing Dedendum Angles and Their Sum. 34.5.4 AGMA References'. 34.6 GEARSTRENGTH. TABLE 34.10 Formulas for Computing Blank and Tooth Dimensions of Hypoid Gears. TABLE 34.10 Formulas for Computing Blank and Tooth Dimensions of Hypoid Gears (Continued). TABLE 34.10 Formulas for Computing Blank and Tooth Dimensions of Hypoid Gears (Continued]. TABLE 34.10 Formulas for Computing Blank and...
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35.1 INTRODUCTION TYPES / 35.2. 35.1 INTRODUCTION. 35.2 TYPES. 35.3 ADVANTAGES. 35.3.1 Noise. 35.3.2 Load Capacity. 35.3 shows. 35.3c). 35.3Z>. 35.3.3 Manufacturing. 35.4 GEOMETRY. (35.11). cos § T ) (35.12). (35.13). 35.5 LOADRATING. 35.5.1 Strength and Durability. (35.18). TABLE 35.3 Application Factor Guidelines. 0.2618nD (35.20). 35.6 shows. 35.7 indicates.. [35.4] and [35.5].. FIGURE 35.7 Rim thickness factor K b ....
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36.1 INTRODUCTION KINEMATICS / 36.3. 36.3 VELOCITY AND FRICTION FORCE ANALYSIS / 36.5. 36.5 STRENGTH AND POWER RATING HEAT DISSIPATION / 36.12. 36.7 DESIGN STANDARDS / 36.13. 36.8 DOUBLE-ENVELOPING GEAR SETS /36.18 REFERENCES / 36.22. ADDITIONAL REFERENCE / 36.22. 36.7 INTRODUCTION. 36.Ia with shafts at 90°.. 36.1Z?. FIGURE 36.1 (a) Helical gear pair. FIGURE 36.2 Photograph of a worm-gear speed...
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37.1 INTRODUCTION / 37.2. 37.2 DISTORTION DUE TO BENDING / 37.3. 37.3 DISTORTION DUE TO TRANSVERSE SHEAR DISTORTION DUE TO TORSION / 37.13. 37.5 SHAFT MATERIALS LOAD-INDUCED STRESSES STRENGTH / 37.15. 37.8 CRITICAL SPEEDS HOLLOW SHAFTS/37.19 REFERENCES / 37.21. RECOMMENDED READING / 37.21. 37.7 INTRODUCTION. 37.2 DISTORTION DUE TO BENDING. of the shaft. Figure 37.1 depicts shafts with a single...
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38.1 INTRODUCTION / 38.1. 38.2 SINGLE-DEGREE-OF-FREEDOM SYSTEMS / 38.1. REFERENCES / 38.30. 38.1 INTRODUCTION. 38.2 SINGLE-DEGREE-OF-FREEDOMSYSTEMS. 38.2.1 Free Vibration. FIGURE 38.1 Representation of a single-degree- of-freedom system.. (38.1), the characteristic equation is obtained:. ms 2 + cs + k = Q (38.2) The two roots of the characteristic equation are. s = ±m n = ±i(klm) m (38.4) and the...
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FIGURE 39.1 Snap-action mechanisms. FIGURE 39.2 Linear actuators. FIGURE 39.3 Fine adjustments I. FIGURE 39.4 Fine adjustments II. FIGURE 39.5 Clamping mechanisms. FIGURE 39.6 Locating mechanisms. FIGURE 39.7 Escapements. FIGURE 39.8 Indexing mechanisms. FIGURE 39.9 Oscillating mechanisms I. FIGURE 39.10 Oscillating mechanisms II. FIGURE 39.11 Ratchets and latches. FIGURE 39.12 Reciprocating mechanisms I. FIGURE 39.13 Reciprocating mechanisms II. FIGURE 39.14...
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40.3 LAYOUT AND DESIGN. MANUFACTURING CONSIDERATIONS FORCE AND TORQUE ANALYSIS / 40.22. 40.3 the equations necessary in establishing basic parameters of the cam are given, and the important problem of accuracy is discussed. 40.4 and 40.5, respectively.. 40.7 CAM MECHANISM TYPES, CHARACTERISTICS, AND MOTIONS. FIGURE 40.1 (a) Planar cam mechanism of the internal-combustion-engine D-R-D-R type. 40.1«) or positive drive (Fig....
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41.1 BASIC LINKAGE CONCEPTS/41.1 41.2 MOBILITY CRITERION / 41.4. 41.3 ESTABLISHING PRECISION POSITIONS PLANE FOUR-BAR LINKAGE / 41.4. 41.5 PLANE OFFSET SLIDER-CRANK LINKAGE / 41.8. 41.6 KINEMATIC ANALYSIS OF THE PLANAR FOUR-BAR LINKAGE DIMENSIONAL SYNTHESIS OF THE PLANAR FOUR-BAR LINKAGE: MOTION. GENERATION/41.10. 41.8 DIMENSIONAL SYNTHESIS OF THE PLANAR FOUR-BAR LINKAGE: CRANK- ANGLE COORDINATION /41.18. 47.7 BASICLINKAGECONCEPTS 41.1.1 Kinematic Elements. FIGURE...
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42.1 INTRODUCTION / 42.1. 42.2 LOAD-DOMINATED ENERGY TRANSMISSION SYSTEM MACHINE-CYCLE ANALYSIS / 42.5. 42.4 LOAD PLOTS / 42.7 REFERENCES / 42.9. 42.7 INTRODUCTION. This chapter deals with the technologies of basic energy transmission systems as used by product- and process-oriented industries and the military establishment. Figure 42.1 and Table 42.1 illustrate the essence of these types of systems.. These classes...
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43.6 OPEN-LOOP AND CLOSED-LOOP CIRCUITS / 43.5. PERFORMANCE / 43.31. REFERENCES / 43.47. 43.7 PRESSUREPLOTS. 43.2 FLOWPLOTS. [43.1], pp. 43.3 POWERPLOTS. 43.4 CYCLEPROFILE. [43.1], Chap. FIGURE 43.2 Cycle profile for a single actuator. 43.5 CIRCUITDESlGN. FIGURE 43.3 The four sections of a fluid power circuit. 43.4 is helpful. 43.6 OPEN-LOOP AND CLOSED-LOOP CIRCUITS. FIGURE 43.4 Graphical layout of a circuit...
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Nickel alloys general- ly res., except Ni-Cu. at r.t.: 1.9 mpy under quiet condi- tions, 1.1 mpy under aerated cond.. SBR rubber—after 70 hrs at r.t.: +18% vol change. bon rubber — little or no effect at r.t.. Natural rubber — satis. after 70 hrs at r.t.: +201% vol change. Butyl rub- ber — 70 hrs at r.t.: +2% vol...
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45.1 INTRODUCTION / 45.1. REFERENCES / 45.37. 45.7 INTRODUCTION. [45.1] through [45.5. 45.2 NOISE MEASUREMENT AND ANALYSIS 45.2.1 Noise Measures. J (45.3) where c = speed of sound, ft/s (m/s). 45.!.This figure illustrates a time-history graph of the amplitude of a sound. FIGURE 45.1 Basic properties of a sinusoidal (pure- tone) sound wave.. 45.2.2 Sound Fields. TABLE 45.1 Comparison of...
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46.1 ORDINARY GEAR TRAINS/46.1 46.2 GEAR TYPE SELECTION PLANETARY GEAR TRAINS DIFFERENTIAL TRAINS/46.14 REFERENCES/46.16. 46.1 ORDINARY GEAR TRAINS. Figure 46.Ia shows a simple ordinary train in which there is only one gear for each axis. 46.1Z?, a compound ordinary train is seen to be one in which two or more gears may rotate about a single axis.. The ratio of...
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47.1 INTRODUCTION DESIGN AND FUNCTION STRUCTURAL DESIGN / 47.8. 47.7 INTRODUCTION. 47.1.1 Elements of a Robot System. For this reason, much of the material in this chapter is directed at industrial robot design, although an attempt is made to place them in an overall context of intelli- gent mechanical systems.. Figure 47.1 indicates the hardware subsystems present in a generalized...
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47.6 COMPUTER HARDWARE AND SOFTWARE ORGANIZATION. 47.6.1 Software Organization. It initiates reading of this program, which is, in fact, the remainder of the permanent software. This procedure is necessitated by the volatile nature of the devices used for random access memory (RAM). Random access memory is the pri- mary memory of the computer. In an industrial robot, storage of the...
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48.1 CENTROIDS AND CENTER OF GRAVITY SECOND MOMENTS OF AREAS PREFERRED NUMBERS AND SIZES / 48.14. 48.4 SIZES AND TOLERANCES OF STEEL SHEETS AND BARS WIRE AND SHEET METAL / 48.37. 48.6 STRUCTURAL SHAPES / 48.37 REFERENCES / 48.37. 48.1 CENTROIDSANDCENTEROFGRAVITY. Figure 48.1 shows four weights Wi, W 2 , W 4 , and W 5 attached to a straight...
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49.1 DEFINITIONS AND NOTATION TRIAXIAL STRESS / 49.3. 49.3 STRESS-STRAIN RELATIONS FLEXURE/49.10. 49.5 STRESSES DUE TO TEMPERATURE CONTACT STRESSES/49.17. REFERENCES / 49.22. 49.1 DEFINITIONS AND NOTATION. 49.1« shows two normal stresses C x and Gy, both positive, and two shear stresses i xy and i yx , positive also. FIGURE 49.1 Notation for two-dimensional stress. Figure 49.1b shows an element...
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50.1 STIFFNESS OR SPRING RATE DEFLECTION DUE TO BENDING PROPERTIES OF BEAMS COMPUTER ANALYSIS ANALYSIS OF FRAMES /50.15. 50.7 STIFFNESSORSPRINGRATE. (50.2) and the tensile force in an elongating bar of any cross section is. For contacting bodies with all four radii of curvature finite, the approach of the bodies is proportional to load to the two-thirds power, making the spring...