Frame of Struct
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This document discusses the stability and determinacy conditions for frames. It provides the essential formulas: a frame is stable if r < 3n and unstable if r ≥ 3n; a frame is determinate if r = 3n and indeterminate if r > 3n. The degree of indeterminacy I is calculated as r - 3n. Several example frames are then analyzed by calculating n, r, 3n, and determining stability, determinacy, and degree of indeterminacy based on the formulas.
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About
Practice Head is assembled with Practice Torpedo intended for carrying out exercise firings. It is assembled with Homing Head in the forward section and oxygen flask in the rear section. Practice Head imparts positive buoyancy to the Torpedo at the end of run. The Practice Head is divided into two compartments viz. Ballast Compartment (Houses Light Device, Depth & Roll Recorder, Signal Flare Ejector, Discharge Valve, Stop Cock, Water discharge Valve, Bellow reducing Valve, Release Mechanism, Recess, Bypass Valve, Pressure Equalizer, Float, Sinking Plug etc.) which provides positive buoyancy at the end of run by discharging water (140 ltrs.) filled in the compartment and Instrument compartment (dry), houses (safety & recovery unit and its battery, combined homing and influence exploder equipment, noise maker, bollards & safety valve etc.) The recess in Ballast compartment houses the float which gets inflated at the end of run to provide floatation to the surfaced Torpedo. Several hand holes/recesses are provided on the casing/shell of Practice Head for assembly of the following components:-
a) Signal Flare Ejector Assembly
b) Depth and Roll Recorder Assembly
c) Light Device
d) Pressure equalizer
e) Drain/Discharge Valve assembly
f) Bollard Assembly
g) Holding for Floater/Balloon Assembly
h) Sinking Valve
i) Safety Valve
j) Inspection hand hole
Technical Details:
SrNo Items Specifications
1 Aluminum Alloy (AlMg5)
Casing Body Material: AlMg5
• Larger Outer Diameter of the Casing: 532.4 MM
• Smaller Outer Diameter of the Casing: 503.05 MM
• Total Length: 1204.20 MM
• Thickness: 6-8 mm
• Structural Details of Casing: The casing is of uniform outer dia for a certain distance from rear side and tapered from a definite distance to the front side. (Refer T-DAP-A1828-GADWG-PH- REV 00)
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• Maximum External Test Pressure: 12 kgf/cm2
• Maximum Internal Test Pressure:-
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ii. For Instrument Compartment: 1 kgf/cm2
• Innerspace of casing assembly have 2 compartments:-
i. Ballast Compartment and
ii. Instrument Compartment
• Cut outs/ recesses shall be provided for the assembly of following components.
a) Signal Flare Ejector Assembly
b) Depth and Roll Recorder Assembly
c) Light Device
d) Pressure Equalizer
e) Drain/ discharge valve assembly
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• Pitch Circle Diameter: 468 MM
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About:
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Components
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3. Decanting Unit: Separates liquid helium from gas, facilitating decanting at pressures of up to 2 bars.
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6. Piping and Fittings: High-quality, corrosion-resistant materials for safe transport.
Functions
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• Decanting: Safely decants helium, separating liquid from gas at pressures of up to 2 bar.
• Safety Measures: Equipped with relief valves and emergency shut-off systems to handle high pressures safely.
• Monitoring and Control: Sensors and automated controls monitor pressure and flow rates.
Application:
• Cryogenics: Cooling superconducting magnets in MRI machines and particle accelerators.
• Welding: Used as a shielding gas in welding processes.
• Research: Crucial for various scientific applications, including laboratories and space exploration.
Key Features:
• Helium Storage & Boosting System
• Decanting System
• Pressure Regulation & Monitoring
• Valves & Flow Control
• Filtration & Safety Components
• Structural & Material Specifications
• Automation & Electrical Components
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Frame of Struct
- 1. M.S MAHAFUZ SHAWON FAKIR B.Sc. In Civil Engineering ID. 050 07732 Stamford University Bangladesh
- 2. FRAME CHAPTER: 2 Stability & Determinacy
- 3. INTRODUCE DIFFERENT PART OF THE FRAME. Not Frame Frame  Here, Colum n= Total Number of Frame r = Minimum Number of Reactive Components required for External Stability/Determinacy. Beam Reaction  One face open ,it’s frame  r=3n
- 4. ESSENTIAL FORMULA FOR FRAME.  STABILITY  r < 3n The Frame is Stable.  r ≥ 3n The Frame is Unstable.  DETERMINACY: r = 3n The Frame is Determinate. r > 3n The Frame is Indeterminate.  If Frame is Indeterminate, then Degree of Indeterminacy (I) = r-3n
- 5. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n = 3 r = 6+3*3 =15 3n= 3*3 = 9 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n = 19-14 = 5°
- 6. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n = 2 r = 6+1*3 =9 3n= 3*2 = 6 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n = 9-6 = 3°
- 7. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n = 7 r = 12+7*3 =33 3n= 3*7 = 21 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n =33-21 = 12°
- 8. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n =3 r = 9+5*3 = 21 3n= 3*3 = 9 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n =21-9 = 15°
- 9. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n =2 r = 9+3*3 = 18 3n= 3*2 = 6 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n =18-6 = 12°
- 10. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n =4 r = 6+4*3 = 18 3n= 3*4 = 12 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n =18-12 = 6°
- 11. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n =8 r = 15+8*3 = 39 3n= 3*8 = 24 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n =39-24 = 15°
- 12. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n =6 r = 9+6*3 = 27 3n= 3*6 = 18 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n =27-18 = 9°
- 13. Determine the stability and determinacy condition for the following structure as shown in the figure.  Here, n =6 r = 9+6*3 = 27 3n= 3*6 = 18 Since, r > 3n The Frame is Stable. Since, r> 3n The Frame is Indeterminate. I = r-3n =27-18 = 9°
- 14. SLAIDE MADE BY MSF END