instructions to do so are provided in the maintenance manual. Batteries
Fuel pump Exhaust Spark plugs and wires Floats and skis 12-46
Repair or alteration of components when specific instructions ar
( ) 2 = det 0 t F t 0 FT d 0 a d t V = d t a d t x3 = det 0 t F 0 t FT d 0 a 0 t
F d 0 x3 = det 0 t F d 0 V . (4-20) The invertibility of the mapping t
requires det 0 t F 0 and as the volume has to b
inspection checklist for the annual condition or 100-hour inspection. A
description of and the instructions for the maintenance, repair, and
overhaul of the LSA engine. A description of and the instru
12. Keywords The scope of that document is basically twofold: To
provide guidelines for the qualification necessary to accomplish various
levels of maintenance on LSA. To provide the content and struc
consensus standards for use by manufacturers, regulators, maintenance
facilities, LSA owners, and service providers. It is very unique that these
standards are the first ones in over 100 years to sole
aviation industry could benefit from the computer. 2. Aviation
professionals who felt the aviation industry must benefit from the
computer. Some of those initial programs were either not very user
fri
to some strain tensor, E(*) , if the stress power density in the reference
configuration is 0 win = T(*) E (*) = J t S t D , (5-33) see eq. (6-19).
According to this definition, 0 T is work conjugate
their components form a 33 matrix, 17 MAURICE ANTHONY BIOT
(1905-1985) 18 HEINRICH HENCKY (1885-1951) 19 EMILIO
ALMANSI (1869-1948) EngMech-Script.doc, 29.11.2005 - 24 - ij (*) ( )
= 11 (*) 12 (*) 13
decomposed into a spherical part and a deviatoric part, S , S = 1 3 ( ) trS
1 + S = p1 + S , (5-21) where p = 1 3 kk = hyd , (5-22) is the mean
pressure or (negative) hydrostatic stress. Deviatoric st
in the description of motion given by eq. (4-10), attention is given to a
point in space, and we study what is happening at that point as time
passes. This description is called the spatial descriptio
function with f(1) = 0 and f '(1) = 1. The most common strain tensors are
EngMech-Script.doc, 29.11.2005 - 23 - BIOT'S 17 (linear) strain
tensor, f (i) = i 1 = 0 t i 0 t E(B) = 0 t U I = 1 2 0 0 t u +
(LSA) Maintenance The LSA category includes gliders, airplanes,
gyroplanes, powered parachutes, weight-shift and lighterthan-air aircraft.
There two general types of LSAs: Special (SLSA) and Experimen
0 gi 0 g j = j i , t gi t g j = j i , (4-25) by means of which the metric
tensors13, 1 = gi g j = gi g j = gi g ( )j gi g j = gij gi g j = gij gi g j = j i
gi g j , (4-26) can be written in initial an
pounds, more than 12,500? Mixed?) Does the program have built-in
templates for the aircraft you are working on? What FAA forms (if
any) are available in the program? 12-44 Does it have a user-friendly
W = 1 2 t L t LT ( ) = t WT . (4-62) The coordinates of t D are the rates
of change with time of lengths and angles of material volumes, and the
coordinates of t W are the angular velocities of line e
item 1. However, if the repair or alteration is being done to an engine, a
propeller, or other appliance, entries must include the appropriate make,
model and serial number information. Item 6Enter ap
GREEN (1793-1842) 16 No summation over (i) ! EngMech-Script.doc,
29.11.2005 - 22 - Figure 4.2: Polar decomposition of the deformation
gradient In the base of the eigenvectors, tensors can be represent
authorized to perform the 100-hour/annual inspection of the aircraft,
which he or she owns. LSA repairmanmaintenance is a U.S. FAAcertified LSA repairman with a maintenance rating per 14 CFR part 65.
and certificate number of the person doing the return to service (RTS).
Permanent Records14 CFR 91.417(a)(2) and (b)(2) These records
must be retained by the owner during the time he or she operates t
29.11.2005 - 39 - 0 t S = t 0 F1 t S t 0 FT ( )i = t 0 F1 t S t 0 FT +t 0 F 1 t
S t 0 FT +t 0 F1 t S t 0 F T = t 0 F1 t S t L t S t S t LT ( ) t 0 FT . (5-44)
The term in parenthesis is OLDROYD's rate
t x t 0 x = t +t v t , (4-57) we obtain the material derivative operator,
d dt = t + v t , (4-58) for calculating the rate of change with time of an
arbitrary field quantity in the spatial description
(rigid) rotations, it cannot be used to describe the deformation of a
material body. With the theorem of polar decomposition one can define
appropriate measures for deformation. By this, 0 t F can be
spatial (EULERean) formulations affect the calculation of time
derivatives (see section 4.5). 7 JOSEPH LOUIS LAGRANGE (17361813) 8 LEONHARD EULER (1707-1783) EngMech-Script.doc,
29.11.2005 - 19 - 4.3
circle, which is referred to as MOHRs circle 30, is the locus of the
components of all possible stress vectors in a material point X, acting on
area elements under varying orientation. The stress comp
t 0 t 1 dt , (6-32) where the first bracket vanishes due to eq. (6-27), so
that the variational problem finally writes as I = i F xi d dt F x i t 0 t 1
dt = 0 . (6-33) As i (t) are arbitrary (test fun
CAUCHY (1789-1857) 21 For small deformations no difference has to
be made between differentiation with respect to the initial or the current
coordinates EngMech-Script.doc, 29.11.2005 - 25 - = d dt =
impressis cogitur statum illum mutare. Lex II [Constat] mutationem
motus proportionalem esse vi motrici impressae, et fieri secundum
lineam rectam qua vis illa imprimitur. Lex III [Constat] actioni
co
, (6-15) Conservation of mass yields t d(O) (P) = t x t x t d t V t V (P) ,
(6-16) and CAUCHY's law (5-9) with divergence theorem, t x t t n d t A
t A(P) = t x t n t ( ) S d t A t A(P) = t x t ST ( )
unnecessary to account for all three components of the stress vector. In
sheet materials or under in-plane loading conditions, all stress vectors
can be assumed to lie in one plane, and the stress ten
5.3 PIOLA-KIRCHHOFF Stresses Beside CAUCHY stresses, many
other stress tensors are in use. In the previous section, stress is
understood as force, d t fc , per area, d t A. of the current configuratio