APPENDIX A

MASS OPTIMIZATION FOR MDRE AND MDLL, DEVELOPED IN SECTION 2


HEWLETT-PACKARD 67/97 PROGRAM
Step Instructions Input Key Output Units
1 Load sides 1 and 2 - - - -
2 Input coefficients 1.66X10-10 STO 0 - -
for MDRE 0.122 STO 1 - -
for MDLL 0.142 - - -
for MDRE 7.19X10-4 STO 2 - -
for MDLL 7.19X10-4 - - -
for MDRE 0.0025 STO 3 - -
for MDLL 0.0007 - - -
3 Rotate registers - PS - -
4 Input data a ENT - m/sec2
ve ENT - m/sec
m1 ENT - kg
- - Hz
5 Start - A - -
6 HP97 will print input - - a, ve,m1 -
HP67 will store - - SPACE -
- (for HP67) - -
- RCL 1 Ms kg
- RCL 2 Mw kg
- RCL 3 MF kg
- RCL 4 Mkin kg
- RCL 5 Melec kg
- RCL 6 Mtot kg
- RCL 7 Ms kg
- RCL 8 Pw W
- RCL 9 Ptot kg
- RCL 0 Eff -

PROGRAM DESCRIPTION

R1 SCR mass Ms =1.66 10-10ve3 a m
R2 winding mass Mw =0.122vem for MDRE
=0.142vem for MDLL

equal to associated power and radiator mass
R3 feeder mass MF =7.19 10-4veam for MDRE
=7.97 10-4veam for MDLL

equal to associated power, radiator and capacitor mass
R4 kinetic power massMkin =0.0025 m1ve2 for MDRE
=0.0007 m1ve2 for MDLL
R5 total electric mass Melec =Ms + 2Mw + 3MF + Mkin
R6 total mass Mtot = 1.5Melec
R7 total lengthStot =0.847ve2 /a
R8 waste powerPw = [R2 + R3] 1/0.025 for MDRE; Pw = [R2 + R3] 1/0.034 for MDLL
R9 total power Ptot = [R8] + [R4] 1/0.005 for MDRE; Ptot = [R*] + [R4]1/0.014 for MDLL
R0 efficiency Eff = [R9 - R8]/[R9]

PROGRAM LISTING

001 *LBLA 018 yx 035 RCLC 052 yx
002 SCI 019 x 036 053 RCLA
003 STOD 020 RCLB 037 x 054 3
004 PRTX 021 3 038 RCLD 055 1/x
005 R 022 yx 039 056 yx
006 STOC 023 x 040 x 057 x
007 PRTX 024 PS 041 PS 058 RCLC
008 R 025 RCL 042 RCL1 059 5
009 STOB 026 PS 043 PS 060 ENT
010 PRTX 027 x 044 x 061 9
011 R 028 SSTO1 045 STO2 062
012 STOA 029 PRTX 046 PRTX 063 yx
013 PRTX 030 RCLB 047 RCLB 064 x
014 SPC 031 1 048 5 065 RCLD
015 RCLC 032 . 049 ENT 066 3
016 3 033 5 050 3 067 1/x
017 1/X 034 yx 051 068 yx
069 x 088 RCL3 107 RCLB 126 STO8
070 PS 089 3 108 x2 127 PRTX
071 RCL2 090 x 109 RCLA 128 RCL4
072 PS 091 + 110 129 2 (7 for LL)
073 x 092 RCL2 111 . 130 (1 for LL)
074 STO3 093 2 112 8 131 (. for LL)
075 PRTX 094 x 113 4 132 .(4 for LL)
076 RCLD 095 + 114 7 133 x
077 RCLC 096 RCL1 115 x 134 RCL8
078 x 097 + 116 STO7 135 +
079 RCLB 098 STO5 117 PRTX 136 STO9
080 x2 099 PRTX 118 RCL2 137 PRTX
081 x 100 SPC 119 RCL3 138 RCL8
082 PS 101 1 120 + 139
083 RCL3 102 . 121 4(2 for LL) 140 RCL9
084 PS 103 5 122 (9 for LL) 141
085 x 104 x 123 . 142 STO
086 STO4 105 STO6 124 (4 for LL) 143 PRTX
087 PRTX 106 PRTX 125 x 144 RTN

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Curator: Al Globus
NASA Responsible Official: Dr. Ruth Globus
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